1962. (No. 18.)
TASMANIA
REPORT
OF THE
DIRECTOR OF MINES
FOR THE
YEAR ENDED 31sT DECEMBER,
1961
TASMANIA: L. G. SHEA, GOVERNMENT PRINTER, HOBART, TASMANIA. 1962 71486 1962. (No. 18.) 3 TABLE OF CONTENTS Page REPORT OF THE DIRECTOR OF MINES: Mines 5 Meta,l Prices 5 Exploration 6 Cowl 6 Legislation 7 OPERATIONS AND PRODUCTION : 1. Metallics Cadmium 7 Cobalt Oxide 7 Copper 7 Gold 8 Iron Oxide 9 Lead 9 Manganese' Diol REPORT OF THE DIRECTOR OF MINES Department of Mines, METAL PRICES Hobart, 25th J u'ne, 1962. Copper.-The average Australian market price of copper f'Or 1961 was £A307 per ton as THE HONOURABLE THE MINISTER FOR MINES. compared with £A323 for 1960. The Copper I HAVE the honour to present my report on the Bounty Act, 1958, was extended until 31st mining industry for the year ended 31st December, 1963, and the bounty payable was December, 1961. reduced from £45 to £35 per ton as from 1st January, 1961. However, at the same t ime an 'Dhe iota:! v",lue of the industry based on Aus amendment was made to the import duty on tralian metal prices was £A13,379,477 as com copper and the "fioor" below which duty on pared wHh £A13,387,290 for 1960. There were copper applies was raised f!'om £275 to £290. increases in the production of copper, g<:>ld, An amount of £15 is added as ·an ",Ilowance for scheelite and zinc but the output of lead, silver, freight and other charges. Consequenbly bounty tin and wolfram declined. The v",lue of non is payable when the price of copper is £A305 as metal,lic minerals and of construction materials against £A290 per ton previously. The overall showed only sIi&'ht val1ia:tion from 1960 figures. effect has been to increase the guaranteed price The most signifioant movement was in the pro~ to producers for copper sold for use in Australia duction of coal which recorded a decline of 41,842 to £A340 per ton. tons from the previous year. This was accom panied by a f",11 in employment from 297 men Lead and Zinc.-The quotas imposed hy the in 1960 to an average emp·loyment of 258 men ;n United States on the import of lead and zinc were 1961. These figures illustrate a seru'Ous down ma~ntained. There was a general easing in the ward trend in production ",nd employment 'in the price of zinc which averaged £A102 in 1961 as coal mining industry and unless expanded markets compared with £A1l2 in 1960. The Australian for coal can be developed it seems that the place production capacity is in excess of ma·rket require of the coal mining industry in the economy of ments and it would appear that new market the State w.ill decline permwnently. outlets, notably in A&ia, must be developed to The average employment in the mining industry enable p·roducers to attain full scwle produotion. was 8493 men representing an increase of 194 Lead is iproducedas a co-pr·oduct with zinc and men. Increased production of copper, soheel'ite the existing market position for this product is and zinc provided employment for an addition wI unfavourable and there has been V'oluntary restric 151 men, and oper.ation of refineries employed a tion of produdion. There are possibilities of further 50 men. Although&ales of tin decreased developing markets in Asia as indusbrial expan slightly the increased m",rket price for thds metal sion proceeds in that area. The Australian price stimulated activity in this section of the i.ndustry was maintained at £A100 per ton for the first and employment was provided for 10 more men. three quarters of bhe year but tt receeded to £A97 There was also increased employment in the per ton in the last quarter. production of crushed and broken stone. Ap",rt l1he International Lead and Zinc Study Group f110m the b ll in employment in the co",l mining set up by the United Nations has met and a industry, there was a significant deoline in special Working Group has been appointed to employment in the production of cement result make an examination of the long-term problems ing from economic measures for credit restric of the i'ndustry and the possibilities of solution. tions, and Idue to the olosureof Zeehan Mines Pty. Tungsten.-The price of tungsten which is the Ltd. in 1960 there was a net decrease ,in the ba&is for the swle of wolfraJ1l1 and scheeLite employment in lead production. declined during 1961 to an average of 143'8. 2d. per unit as compared wi·th 182s. 5d. per unit in MINES 1960. P,rices ranged from 165s. per unit in No new mines were opened during 1961 and all January 1961 to a low of 106s. per unit in Novem existing mines continued in production. Increased ber 1961 and was quoted at 123s. in December activity by small tin producers was recorded as 1961. Market ·repor.bs indicate that Ibhe bll in price a result of the more favourable market .price for has heen due to sales ",t a discount by Communist tin which averaged £A1178 for the year as com Bloc countr·ies. Increased prices are dependent p",red w.ith an average of £A1040 for 1960. upon a fall in supplies from this source and (No. 18.) 1962. 6 increased demand by manuf-aeturers of machine EXPLORATION tools and special steels. The forecast for 19,62 Large areas of the State continue to be hdd is not favourwble. foOl' exploration purposes although activities -are The ruling market position has caused a reduc ona reduced scale. 'l'he higher price for tin is tion in production of wolfram by the Storeys causing increased interest in areas of po,tential Creek Tin Mining Company N.L. King Island value and as a resu],! some ,"reas not fully Scheelite (1947) Ltd. which has a contract for investigated in the past are being subj-ected to sale of its production continued operations on geological examinations and drilling to determine an expanded scale. their potential value for productive mining. Tin.-The average Australian price of tin for Active prospecting of existing leases has been 1961 was £A1l78 per t on as comp",red with continued by the larger comp,anies and twa com £AW39 per ton for 1960. This reflects the upward panies have _increased the areas held under lease. movement in tin prices on the London Met",l The company which holds an Exploration Licence Exchange which has resulted from increased to search for oB in Bass IStrait has completed demand and a world shortage in pr.oduction. an airborne aeromagnetic survey involving flying Under the 'International Tin Agreement, regula of 11,000 line mile>. The survey is part of a tion of exports of tin by the producing (loun'tries larger scheme which includes Victorian and is exercised and excessive price fluctuati men were in employment at the beginning of Producers have met the position by improve 1961 but this figure had fallen to 227 men at the ment of their product throu.gh ·c oal washeries end of December, a decline of 62 men. and increased efficiency in operation r esulting in As indicated in my last report a downward lower production costs and nD market price trend in demand f'or coal was then becoming increases, but in some cases it has been neces evident. This assumed serious projXlrtions when sary to r educe the size of act ivities. All mines the full effect was felt of the economic measures have been obliged to r educe the labour force, to control inflation instituted by the Common but to date there has not been a complete sus wealth Government. There was a large drop in pension of operations at any of the mines. the demand for coaJ and this resulted in a decline in employment particularly in the Fingal Va!lley where most of the coal mines are concentrated. Acti,on was taken by the Government througJ, LEGISLATION the Forestry Commission to absoI1b those dis THE EXPLOSIVES ACT-1916 placed by accelerating development of State Fo,rests. Foliowing various representations the An ·amendment was made t o the Explo.sives Government appointed a BDard of Inquiry in Regulations (Statutory Rule 1961, No. 200) to September, 1961, to inquire into the question of include igniter cor d in the ammunition class generation of electricity in Tasmania with par of explosives. The imjXlrt and export of ticular reference to the Finga,l Valley. The ammunition is being allowed without a licence findings of the Board were not availaNe at the or a permit. Further provision has also been end of the year under review. made for t he safe use of explosives. The prosperity of the coal industry is dependent upon ,retaining existing markets and finding alternative outlets in place of consumers who have converted to the use of oil. It ,i,s probable MINES AND WORKS REGULATION ACT--1915 that release of the "credit squeeze" will result Preparation of new Rules has been completed in some improvement as consumer industries to conf.o.rm with modern pracmces and in accord which have been affected a re able to resume ance wi,th agreed standards formul·ated at con normal trading but the replacement of customers ference of the Chief Inspector 'Of Mines of all lost to 'Oil ·is necessary for a rehabiJ.itation of the States. T'h e Rules will be pub:lished in the industry. January, 1962. OPERATIONS AND PRODUCTION I.-METALUCS CADMIUM Redudion- Tons Concentr·ates smelted. Quantity produced:- 48,581 Crown Lyell ,ore 7,200 Tons Value £, Precipitate smelted (North Lyel,l 1924-57 1,011 969,708 and Comstock) 84,663 16 1958 56 Blister copper produced . 10,903 1959 53 85,077 Containing Copper 10,821 tons 1960 52 83,498 Gold 6,874 ozs. 1961 62 98,286 Silver 48,290 ozs. Total 1,234 £1,321,232 Pyrite concentrate shipped 71,087 Total Vwlue of Pr·odluction £3,746,967 This is a by-product obtained by the Electro Average Number of Men Employed lytic Zinc Company of Australasia Limited at its Mjning~Open cut 569 Risdon Works from zinc concentrates praduced Underground 60 from the Rosebery and Williamsford mines. other 976 COBALT OXIDE Total 1,605 The source of the 0.55 ton of cobalt oxide of value £621 was the same as that of cadmium Production from the inception to 31st December, above. 1961- Copper 540,543 tons COPPER Gold 578,112 ozs. THE MOUNT LYELL MINING AND RAI~ Silver 15,888,234 ozs. WAY COMPANY, LIMITED, QUEENSTOWN RETURN FOR 1961. In,spector Braithwaite reports that the strip Tons ping of overbuI'den by a contractor continued Mining- throughout the year but the contract is expected Overbul'den removed . 2,&59,992 tD finish in May, 1962. Ore mined (West Lyell) 1,959,195 A new truck fleet was bl'ought into operation Ore mined (Crown Lyell) 13,355 at West Lyell when the 20 trucks of nominal Limestone delivered to works 6,360 capacity 20 tons were replaced with 18 of Silica 1,394 nominal crupacity 27 tons. (No. 18.) 1962. 8 A major eeonomy was also introduced by the changeover to an Ammonium Nitrate-Molasses C'J -.:1h:::f1 c-:J «:j1 ~ wet holes are of no consequence. A 120-ton 0 ~ Ammonium Nitrate store was built in the rail Eo< way yard and a 40-tan store at West Lyell. '" to <:0 co 1""'l""d4 0 0 -.::fLO~C':>C\l ,.... The West Lyell are bin was covered with a Eo<'" ~~o.. C'-I<:O", It> galvanized iron roof suppartedon two 174 feet tOOr-lr-lr-l ,....i' box girders to minimize the effect of r.ain on oo~r-Ir-Ir-I...-1 '"oo the stored ore. Wet ore tends to hang up in the pass. ,.... ,.... In the Crown Lyell Mine, three stopes were 00 00 developed for shrinkage mining and 1073 feet of ~ It> It> driving and 54 feet of rising were carried out. '" 0,.... 0,.... Twenty-two diamond d,rj,ll hales, of total footage, 0'" ~ 2222 feet were drilled from various levels. A'" On the surface four diamond dri1l holes, of '"A total footage, 877 feet, were drilled to intersect 0 the Razorback orebody and four holes of total U '" ..,. ..,. ..,.0 ..,.0 footage, 1972 feet, to ontersect the Great Lydl ..... ~'" anomaly. '" ELECTROLYTIC ZINC COMPANY OF AUSTRALASIA LIMITED, ROSEBERY m 0";1 .-P.o <:0 ,.... 'I'his ,company, reviewed under Zinc, pro CQ<:O<:O'<:jI'<:jI 0 'A. '""!. cq, '<::lI.. 01 t- U ,-t¢?C'Ocoeo ..,.- ABERFOYLE TIN NO LIABILITY ..,. It> ROSSARDEN '" '+l This company, reviewed under Tin, sold ~'" accumulated copper-silver residues containing ii:i '"0 lOt-lOC\lr-l 0 34 tons of copper, valued at £10,394. Eo<'" ~OOOOOOC\l It> ..... <:Or-IlOtDOO '" ~ooo"o '",....- ooCl'J r-I r-I M r-I 00 GOLD oo Quantity produced- OOlOCC<:O~ oz. Value £ '" o (,Ot-mt:- ,.... '" o~oom~ "" 0 ~ 10_ Prior to 1958 2,451,053 12,951,765 '" ~~~~~ ..,. o o 1.0 0':1 CO 0 1958 20,976 327,749 1OC\l1""11""1C\l 1959 20,260 316,567 .~" ,....i' '"",r N'", ~ 1960 23,015 359,613 '0 1961 24,528 383,268 '" H'" '" lOmoomm 0 Total 2,539,832 £14,338,962 0 0':1(,000<.0 It> a Eo<'" C\l", (,0 1.0 <.0 t:- oo 0 This Company recovered 6874 oz., valued at " '" ,.... Ol :><'" '", ~ MISCELLANEOUS m 000':1 01""1 0 1""1 1.0 1.0 (,0 (,0 Eo< The Endurance Tin Mining Co. N.L., recovered 0':l0':l0':l0':l0':l 10 oz., valued at £163 from tin concentrate pro ~~~r-!~ duced at the Clifton workings. 1962. (No. 18.) 9 IRON OXIDE PYRITE Quantity produced- Quantity produced- Tons Value ;£ Tons Value £ Prior to 1957 77,722 71,951 1915-57 1,134,423 2,139,573 1958 4,266 5,418 1958 68,110 204,330 1959 5,062 7,395 1959 73,000 219,000 1960 -3,497 5,503 1960 53,919 161,757 1961 2,309 3,S27 1961 71,087 213,261 Total 92,856 £94,094 Total . 1,400,540 £2,937,921 A. PEARSON, PENGUIN This is produced and exported by the Mount Lyell Mining and Railway Company Limited for Operations at the Iron Cliffs Mine, the sole sulphuric acid manufacture. Production was producer, were carried out by three men with a temporarvly suspended at the end of the year front-end loader. The hematite produced and stockvj.]es were drawn upon. (2118 tons of vwlue £2968) was used in cement manufacture and the limonite (191 tons of value £859) in coa'l gas gener.ation. SILVER Silver is nowhere mined for itself but is a LEAD valuable by-product from copper, lead and tin Quantity produced- ores. The current producers are shown below:- Tons Value £ 1919-57 269,298 13,366,293 Producer Source Quantity Value 1958. 12,902 1,124,977 oz. £ 1959. 13,223 1,322,305 12,183 1,218,381 1960 . Aberfo)"le Copper 16,373 6,958 1961 10,278 1,026,909 Tin N.L. Concentrate E.Z. Co. of Copper & 1,165,,529 499,825 Total 317,884 £18,058,865 A/asia Ltd. Lead Concentrate ELECTROLYTIC ZINC COMPANY OF Farrell Min- Lead 62,576 26,880 AUSTRALASIA LIMITED, ROSEBERY ing Co. Ltd. Concentrate This Company, reviewed under Zinc, produced Mt. Lyell M. Refinery 48,290 20,770 11,450 tons of lead concentrates and the total & R. Co. Sludge content of the lead, zinc and oopper concentrates Ltd. wa" 9696 tons valued at £968,963. FARRELL MINING CO. LTD., TULLAH The quantity of ore mined was much the same SULPHUR as last year, hut the producbion of concentrates fen to 895 tons which contained 581 tons of lead This is produced as sulphuric acid in the roast valued at £58,046. The silver content is shown ing at Risdon of the zinc concentrates from the under that heading. Average employment was Rosebery and Hercules mines of the Electrolytic 42 men (27 surface and 15 underground). Zinc Company of Australasia Limited. Development was carried out on a footwwn Production of sulphuric acid was 33,564 mono deposit on No. 7 level hut no payahle ore was tons, valued at £158,850. proved. Twenty-four diamond drHI holes, of total footage 2781 feet, were driven ·into the footwall on No. 6 level but no ore was inter TIN sected. Quantity produced- Tons Value £ MANGANESE DIOXIDE 1873-1957 142,248 29,526,388 This is recovered as a sludge in the electrolysis 1958 ... 883 883,111 of zinc sulphate at the Risdon works of the Elec 1959 .. 890 942,698 trolytic Zinc Company of Australasia Limited, the original source being the ore in its West 1960 . . 884 920,040 Coast Mines. T,he p,roduc1Ji.on of 182 tons was 1961 879 1,022,094 valued at £2059. Total 145,784 £3.3,294,331 OSMIRIDIUM Quantity produced- oz. Value £ ABERFOYLE TIN N.L., ROSSARDEN 1910c57 31,043 705,047 Inspedor Morris reports that the ore treated 1958 42 3,424 in the mill was 7.6,151 tons, an increase of 10,601 1959 3 60 tons compared to the previous year. Tin con 1960 centrate production was 633 tons containing 457 1961 tons of tin valued at £534,222. Detaits of the wolfram production are given under Tungsten. Total ... 31,088 £708,531 The average number of employees was 278 (91 surface, 184 underground). (No. 18.) 1962. 10 During the year winze-rise connections were l.Cl 000:.0 t-oo 0> O""-'!~ C'l'JM (lomp,leted from t he southern end of the western C\J to C\l 1"""'1 ~ '"w. lode system on the bottom level to the No. 4 tDC':J"eOeO~" <=> level. This work is preparatory to installing an '" ~~;';~tl5 ""'lO exhaust fan to dischar,ge up Brandon Shaft. t.:' .., '+< Similar work is in progress at the north end ~ 0 '" of the mine. Aoll mill discha.rge, except water, E-< o ~o C\1 CoO 00 free from soGids, is now either stored ina surface M lCI to 11:1 to ""'00 q "'!jI.. 1"""'1... lQ" t-:. '" dump or used as " tope filling. OQoot-ooC\J .c- o-.::ll"""""dIm ,.., Underground development comprised:~ o" t-MMC'OC\] <=> "<:j'...... ;.,...; r"1" ~-;' 0 Driving 1,874 feet ... Crosscutting 509 feet '" Rising 683 feet t-C')(.OOOlCl oot-m~C\l Total 3,066 feet ~ '" " w~ ~ <- ENDURANCE TIN MINING CO. N.L., SOUTH i>< '9 01 MOUNT CAMERON mcomoT""'1 e ,...-.! lCllr.no to E-< mcnmmO':l This Company treated 411 ,500 cubic yards of rll"""'lr-lrlM gravel f,rom the Clifton workings fo,r the pro duction of 64 tons of tin concentrate, containing 1962. (No. 18.) 11 48 tons of t in valued at £57,039. In addition, MUSSELROE MINE, PIONEER 10 oz. of fine gold valued at £163 was r eeovered. From his two working places, Mr. V. Wood From adjacent workings, 1232 tons of kaoHn was produced and sold to paper manufacturers mined 52,500 cubic yards of gravel which yielded for a return ·of £6383. T.he average emp.loy 23 tons of concentrate, containing 17 tons of ment was 43 men, of whom two men were tin valued at £19,999. Average employment emp,loyed in the clay pits. was four men. BRISEIS TIN N.L., DERBY During the year t he company commenced RAZORBACK MINE, DUNDAS operations at t he VaMey Mine. At the close of the year it appellired that operations were In the midd.Je of the year Mr. W. Hodge was likely to prove uneconomic. joined by Mr. C. C. Bye and production amounted Production from 38,900 cubic yards of gravel to two tons of tin valued at £2939. was seven tons of concentrate, containing five tons of tin valued at £5808. The average Towards the end of the year the Tin Develop number of men employed was 13. ment Partnership of Aberfoyle Tin N.L. took an option on the Raz{)'l'back and Grand Prize STAR HILL SYNDICATE, GLADSTONE Mines. The first stage of the prospecting, con This synd.icate sluiced 80,000 wbic yards of sisting of the mining of bulk .samples from gravel fo r 22 tons of concentrate, containing 17 the existing ad·its 'in the Razorback area, and their tons of tin valued at £19,332. The average t reatment in the existing mill, started late in number of men employed was five. December with a tot al of five men engaged. SMALLER PRODUCERS Many miners and prospectors throughout the State produced small quantities of concentrates by reason of either small-scale or part-time working. The list hereunder gives the number of men engaged (either full or part time) at each place, the quantities of tin in concentrates sold, and the values. Name Locality and Description M en Tons Value £ BRANXHOLM Bolch, R. Branxholm 0.036 42 Holmes, J. Ruby F.lat . 0.037 46 Rogers, L. C . . Branxholm ...... 0.013 15 Seymour, R. R. Branxholm ...... 0.081 101 Stevens, W. G. Ruby F,lat . 2 0.074 93 Symons, R. Branxholm . .. ,. , ...... 0.093 115 DERBY Barnett, L. M. Ringarooma . 0.078 95 Burr, C. W. Ringarooma . 0.040 49 Cotton, G. A . ... . Derby . 0.016 17 Cunningham, G . . Derby 0.002 2 Davey, G. B. Derby 0.038 44 Gibbons, C. Derby . 1 0.258 296 Hyde, R. G. Derby 1 0.777 892 Kerrison, R. Derby . 1 0.604 689 Machen, A. G. Main Creek . 0.135 168 Merritt, L. Ringarooma River 0.072 76 Mer,ritt, T. Ringarooma River . 1 0.791 938 Mundy, L. Derby . 0.115 138 McWatters, W. J. Derby . 0.064 80 Rainbow, R. L. Winnaleah (Banca Mine) 1 2.299 2,771 Richardson, P. A. Ringarooma River . 0.634 705 S';ngline, K. H. Ringarooma . 0.034 42 Smith, A. R. Ringarooma . 0.181 224 Smith, F. G. Ringarooma . 1 0.754 533 GLADSTONE Bartels, J. Gladstone 1 0.357 440 E.Jizabeth Syndicate Gladstone . 0.402 Fletcher, S. E dina Mine . 1 0.385 459 King, E. K. Amber Creek . 6.687 841 Kirton, K. S . .... Gladstone . 0.035 44 Lawry, L. A. Gladstone. 0.037 46 Lawry R. & Richard- son, D. Gladstone . 1 0.299 364 Moore, B. S. Gladstone. 0.073 91 Moore, James Gladstone . 0.059 73 Ponting, J. Ghdstone. 0.095 119 Richardson, A. Gladstone ...... 0.030 35 Richardson, D. Gladstone . 0.031 39 Richardson, K. Gladstone...... 0.052 62 Richardson, E. M. Gladstone . 0.042 52 Standage, H . . Gladstone 3 1.934 2,414 (No. 18.) 1962. 12 SMALLER PRODUCERS-Continued. Name Locality and Description Men Tons Value £ MISCELLANEOUS Aitken, R. Flinders I8land . 0.097 122 Banks, K...... 0.061 76 Dicker, D . . 0.032 40 F'itzaJ.len, T. Roya.J George . 0.057 71 F'reern·an, J. 0.155 193 Freeman, G. A. Avoca. 0.017 20 Grubb, G ...... 0.009 11 Hayes, E. J . . Upper Naione . 0.116 145 King, C. D. Melaleuca Inlet . 1.571 1,765 Lambert, Mrs. D. 0.024 29 Marshall, W. F. 0.073 84 Sajben, J. & Hayes D. Storeys Creek . 1 0.389 478 Woolley, Alan 0.143 178 MOORINA-WELDBOROUGH Boon, W. L. Frome River . 1 0.417 513 Lambert, D. Weld bo rough . 0.116 122 Lambert, Jim Weldborough .. 1 0.641 721 Lambert, M. Weldborough . 0.198 247 Lambert, K. J. Weldborough . 0.117 124 Mullins, F. J. M,oorina 1 0.583 693 Mullins, H. J . Moorina . 0.102 108 Richards, A. Weld borough . 0.032 40 Weldborough Tin Mines W.X.X. Mine, Moorina 3 2.602 3,251 MT. OAMERON-PIONEER Kerrison, E. Pioneer. 0.112 125 Kerrison, J . & M. J. Pioneer . 2 4.262 4,999 Torby, L. L. Herrick . 0.031 38 ST. HELENS Berwick, J. C. St. Helens. 0.009 11 Beven, M. G . . St. Helens 1 0.858 1,038 Counsel, A. B. St. Helens ...... 1 0.375 441 Goshen Tin Mines Groom River . 5 7.541 8,953 Kerrison, W . . Pyengana ...... 0.263 329 Kirwan, M. St. Helens. 0.200 225 Lawry, E. V. St. Helens. 0.021 26 Moses, H . . Constable Creek ...... 1 0.348 434 Pursell, R. G. B,lue Tier, Pyengana 0.130 162 Reynolds, J. P. St. Helens . 1 0.347 399 Wingfield, J. K . . St. Helens . 0.075 82 WARATAH Brooke, H. T . . Shovel Lode . 2 1.447 1,738 Housego, C. Kayser Lode .. 1 0.497 590 Housego, J. Waratah Creek . 1 0.359 433 Kelly, E . M t. Bischoff 2 1.131 1,344 Kelly, J. Mt. Bischoff 0.017 21 Kelly, G. & Glozier, M. Thompson's Lode ... 2 1.494 1,755 Kenworthy, D. P ig Flat . . 0.204 254 Machin, G. Don Hi],] . 0.738 920 Neighbour, C. & Glozier . North Valley 0.086 107 Prouse, H . . Black Tank 1 0.634 693 Prouse, J .. 40 Mill .. . 1 0.377 442 Stokes, N. G. & Others Mt. Bischoff . 0.131 163 Wills, L. W. & G. H. Mt. Bischoff 0.195 244 WEST COAST Bye, C. C. Dund a~ (Grand Prize) 1 0.614 668 Coleman, E. Near Remine 0.011 13 Towndrow, P . .... Exe River 1 0.280 338 1962. (No. 18.) 13 TUNGSTEN (SCHEELlTE) ZINC Quantity produced- Quantity produced- Tons Value £ Tons Value £, (Coneen trates) 1919-57 524,732 26,145,844 1917-57 . 14,579 16,105,911 1958 29,023 2,650,370 1958 . 731 438,365 1959 27,928 2,980,598 1959 Nil Nil 1960 27,191 3,054,714 1960 . 420 265,382 1961 31,794 3,237,863 1961 . 1,022 505,758 Total. 640,623 £38,069,389 Total 16,752 £17,315,416 ELECTROLYTIC ZINC COMPANY OF AUSTRALASIA LIMITED KING ISLAND SCHEELITE (1947) LTD., GRASSY RETURN FOR 1961 Inspector Egan reports that this Company EXTRACTION FROM CONCENTRATES: RISDON steadi,ly increased production and last year's output was more than doubled. The number of From other than Tasmanian Ores- persons employed increased from 71 ,to 131. Pro duction was 1022 tons of concentrates containing Zinc 97,925 tons 712 ions of WO, valued at £505,758 from the Cadmium. 188 tons treatment of 202,673 tons of ore. The use of Cobalt Oxide . 24 tons the blasting agent A.N.-F.O. was successfubly Superphosphate . 89,932 tons introduced in the open cut. From Tasmanian O"e Zinc 31,843 tons Cadmium . 51 tons Cobwlt Oxide . 0.5 tons TUNGSTEN (WOLFRAM) Manufactured product- Quantity produced- Ammon1um Sulphate 46,255 tons Tons Va.lue £ Men employed- (Concentrates) 1899-1957 9,951 6,612,249 The average number of men employed: 2860. 1958 495 188,639 1959 891 426,179 1960 . 1,106 731,653 WEST COAST DIVISION 1961 812 416,184 Ore Minerl- Tons Total 13,255 £8,374,904 From Hercules Mine . 17,530 From Rosebery Mine . 216,534 Total 234,064 ABERFOYLE TIN N.L., ROSSARDEN Wolfram concentrates produced contained 132 Concentrates Produced- tons of WO, valued at £91,822. This Company Tons is reviewed under Tin. Zinc Concentrates . 68,177 Lead Concentrates 11,450 Copper Concentrates . 8,057 STOREYS CREEK TIN MINING CO. N.L., STOREYS CREEK Total . 87,684 Tonnage milled increased by 3893 tons to 48,622 tons. Production of concentrate at 626 tons R ecoverable Quantity in Ore Mined- containing 455 tons of WOo valued at £324,362 Zinc. 31 ,794 tons showed a significant decline owing to a fall in the Lead 9,697 tons unit price. The aver.age number of persons Copper . 770 tons employed was 121 (51 surface and 70 under Cadmium 62 t ons ground). Details of tin production at this mine Silver 1,165,529 oz. and at Dorset are given under Tin. Gold . 17,209 oz. (fine) Ta.lings are now stored in a dam, on the Cobalt Oxide . 0.5 tons opposite side of the creek to the mill, pending Manganese Dioxide 182 tons completion of equipment to take this material Zinc Sulphate ... 187 tons underground as stope fill. Su.lphur as Sulphuric Acid . 33,564 mono-tons Underground development comprised :- Driving . 2,906 feet Total Value of Production.--£5,318,599 Crosscutting 835 feet Rising .... 1,232 feet Average Numbe?' of Men Employed- Total 4,973 feet Hercules Mine .. 29 Rosebery Mine 697 In additi,on 16 Idiamond dorill holes were driven Total 726 for a total footage of 5437. (No. 18.) 1962. 14 ROSEBERY AND HERCULES MINES Re-construction aHer the fire was complleted Development at Rosebery consisted of 2531 and ore production resumed in April. feet of 2.- NON-METALliC MINERALS CLAY DOLOMITE Quantity Proclucecl- Cubic Yards Value, £ Quantity produced- Tons Value £ 1958 121,531 74,176 Prior to 1957 10,654 32,023 1959 125,495 100,620 1958 2,585 7,437 1960 116,038 113,607 1959 2,907 8,119 1961 115,860 112,372 1960 2,678 6,947 --- 1961 1,108 3,155 Total 478,924 £400,775 Total . 19,932 £57,701 .. CIRCULAR HEAD DOLOMITE AND TRADING CO. PTY. LTD., SMITHTON This Company, the sole producer, employed an average of 2 men. Agripipe Pottery Pty. Ltd., Relbia . . 552 154 Pipes Burnie Brick Co., Cooee 8,250 2,930 Bricks John Campbell Pty. Ltd., Launceston 831 322 Bricks KAOLIN Clays Pty Lt d., and McHugh Bros. Pty. Quantity produced- Tons Va lue £ Ltd., Launceston 2,520 2,5 20 22 Pipes Crisp & Cnnn Co-op 1940 to 1957 103,742 401,580 Ltd., West Hobart . 18,765 23,4<;6 46 Bricks 1958 3,302 20,469 Goliath P. C. Co. Ltd., 1959 1,195 5,733 Ranton 6,453 10, 701 3 Cement 964 5,062 Gr::mton Brick Ltd., 1960 Granton 14,,800 18,500 28 Bricks 1961 1,232 6,383 Hobart Brick Co ., N ew Town . 19,495 19,495 39 Bricks To tal 110,480 £438,227 Huttons Bricks Pty. Ltd., Prospect " 10,360 4,105 18 Bricks Luck Brick & Pipe P ty. Ltd., Dulverton 6,386 6,386 19 Bricks Machens Bricks, Kings ENDURANCE TIN MINING CO. N.L., SOUTH Meadows ...... _,_, 16,928 16,928 27 Bricks MOUNT CAMERON McHugh Bros. Bricks Pity. Ltd., Launces- This Company, reviewed under Tin, produced ton 6,470 6,470 Bricks 1232 tons of kaolin, valued at £6,383 from Wnnderlich Pty Ltd., Loira & Launceston 4,050 405 24 Tiles deposits on its leases. Two men were employed. 1962. (No. 18.) 15 LIMESTONE QUANTITY AND VALUE OF PRODUCTION AND USAGE - Manufacture of Manufacture of Chemica.l a.nd Agriculture and I Cement CaI'bide Metallurgical Other I Tota.ls Yean; - - ! Tons £ Tons £ Tons £ Tons i £ I Tons £ j- --. I 1919- 57 3,009,612 1,584,553 482,428 540,362 3,930,762 2,053,092 437 ,G07 I 481,222 7,860,199 4,659,229 19iH:l " 179,171 161,254 21, 104 42,237 23,458 30,777 11,295 23,905 235,028 258,173 1959 " 170,930 136,872 22,074 4 1,881 24,121 39,556 13,095 22,551 230.220 240,860 1960 " 152,720 116,518 24,291 42,891 24,896 47,675 13,301 22,784 21 5, 208 229,868 1961 " 132,580 121,288 26,632 45, 501 24,816 46,663 19,314 23, 308 203,342 236,760 Totals 3,645,013 2,120,485 I 576,529 712,872 4,027,753 2,217, 763 1 494,702 57:3 ,770 8,743,997 5,624,890 THE AUSTRALIAN COMMONWEALTH RAILTON LIME WORKS, RAILTON (;ARBIDE COMPANY, IDA BAY AND A development ",t these worb was the ,installa ELECTRONA tion of a new .steel storage bin. Production of This Company produced 13,129 tons of Cal ground and burnt limestone amounted to 10,684 cium Carbide and employed an average of 160 tons valued at £6895, an average of 5 men being persons at the works. Production was 1898 tons employed. higher than ,last year when an aver·age of 158 persons were employed. In addition 170 tons MINERAL SUPPLIES PTY. LTD., ULVER of Acetylene Black was produced, 8 of t he men ST·ONE being employed on this. S",les by this company' totalled 17 tons valued F·rom the Ida Bay quarry 26,632 tons of I1me at £87. stone valued at £45,501 were shipped to the works at Electrona, the average number of employees THE MOUNT LYELL MINING AND RAIL being 24. WAY CO. LTD., HALLS CREEK T'his Company, reviewed under Copper, quar.ried GOLIATH PORTLAND CEMENT CO. LTD., 6360 tons of .limestone valued at £9950. This RAILTON was either used in the smelter as a fl ux, or burnt to lime f.or use in the reduction works. In the production of 106,417 t ons of cement, 132,580 tons of limestone valued at £121,288 were A second face was opened in the quarry and used, an average of 20 men 'being employed in the production increased by 946 tons. quarry. T·otal employment (includ'ing asbestos cement manufacture) was 256. A. R. BEAMS, FLOWERY GULLY The most important event of the year was the From his Quarry, Crushing Plant and Lime bringjng imto commission of the new 1500 horse Kiln, Mr. Beams produced :- power cement mi.l']' £ 316 t{)ns Agricultural Limestone, Other points of interest were:- valued at 831 1. The completion of the craneway extension. 3082 tons Limestone for Chemical 2. The installation of a second overhead and Metallurgical purposes, crane. v",lued at 3,698 270 tons Burnt Lime for various 3. The successful testing and adoption of purposes, valued at 2,83'5 A.N.-F.O. blasting agent in the quarry. 3668 tons Total Value £7,364 WRIGHT STEPHENSON PTY. LTD., PULBEENA Five men were employed. Operations have now been extended to the R. K. SULZBERGER, LAUNCESTON AND western side of the railway line and a new cut FLOWERY GULLY opened up. A loading station a.nd conveyor belt were instaHed and a front-end loader acquired. From hi,s quarry at F ].owery Gul,ly and crush.. The pump shed was shifted to the western side ing plant at Launceston, Mr. Sulzberger pro· of the bins. Production amounted to 4526 tons duced :- of -l ime sands valued at £5658 for use in ag,rieu,l 757 tons Agricultural Limestone, £ t ure. T wo men were employed continuously. valued at 1,514 11,277 tons Limestone for Chemi cal and Metal.lurgical pur poses, MELROSE AGRICULTURAL LIME valued ",t 23,554 QUARRIES, EUGENANA The company produced 2744 tons of ground 12,034 tons Total V "'lue £2<1, 068 limestone v3llued at £5488 for use in agriculture, an average of 6 men being employed. Eight men were employed. (No. 18.) 1962. 16 OCHRE SILICA Quantity pr oduced- Quantity produced- Tons Value £ 1918 to 1957 . 1,943 4,605 Tons Value £ 1958 66 645 1936 to 1957 ... 142,822 85,815 1959 59 436 1958 6,639 6,068 1960 31 219 1959 6,519 7,657 1961 75 509 1960 5,231 6,885 To1wl 2,174 £6,414 1961 1,415 2, 042 A. PEARSON, SPALFORD Total 162,637 108,467 Production of ochre from this pit was 75 tons, valued at £509. PEBBLES THE MO UNT LYELL MINING & RAILWAY A.PEARSON, ULVERSTONE CO. LTD., QUEENSTOWN The collection of pebbles for grinding was con This company, reviewed under Copper, quarried tinued on the beaches around Ulverstone. The 1394 tons of silica, valued at £1772 for use ;n the output was 453 t ons, valued at £3199. smelter. l -(ONSTRUCTION MATERIALS Quantities produced- LIMESTONE Cubic Value Yards £ G. J. Weilly and Sons Pty. Ltd., quarried 23,873 Building stone: cuhic yards of limestone, of value £29,841, at Freestone 139 794 Glenorchy for construction purposes. Twelve Granite . 38 40 men were engaged. Fwm the Melrose Agricul Other 50 6 tural Lime Quarries, Eugenana, 2935 cubic yards, valued at £3188, were produced in addition to 227 £840 that for agriculture. Crushed and Broken Stone: Basal,t 84,242 47,945 Dolerite 378,387 597,813 OTHER CRUSHED AND BROKEN STONE Limestone . 30,933 37,034 Quarry Men Cu.yds. Value £ Sandstone 480 160 Other 77,672 62,400 Devon, Dev,onport 7 9,528 9,905 Devon , Vlivenhoe 5 3,716 5,725 571,714 £745,3,52 Devonpor t Council 1 6,686 838 Gravel . 924,660 417,226 E.Z., Rosebery 2 3,454 6,908 Sand 24,627 23,987 Other Road MaJterials 18,958 16,731 Howard's, Zeehan . 1 707 729 The largest producers were Government and Mt. Lyel,l, West Lyell 4 30,597 25,739 Local Government authorities, accounting for 171,446 cubic ya,l1ds of crushed and broken stone Queenstown Council 2 600 550 vwlued at £340,178, and 774,590 cubic yards of gravel, valued at £357,958. Sund,ry, North West. 5 9,000 Utah, Wivenhoe 1 5,662 1,415 BASALT Quarry Men Cu.yds. Value £ The Mount Lyell Mining and Railway Company A. F . H., Surrey Hills 3 4,587 4,689 Limited completed the (lonstr uction of a modern Bonney's , Mooreville 2 7,800 570 crushing and screening plant at West Lyell and Weily's, Bridgewater 13 6,500 8,125 now maintains stockpiles of various sizes of Utah, Bumie 15 52,904 17,979 s'tone for supply to the Public Works Department Wynyard Council . 5 3,279 5,117 and the Queenstown GouncH, and fo'r use on the mine roads. The stone crushed has been selected DOLERITE hard schist from West Lyel,1 which would other This f(}ck, being both suitable and widespread, wise have been dumped as waste. was quarried most extensively for r oad and con crete making by governmental authorities and commercial firms. Quarry Men Cu .yds. Value £ Bain's, Dynnyrne 7 11,868 11,680 GRAVEL AND SAND Gordon's, Glenorchy 6 3,000 2,700 Grubb's, Moonah 9 25,103 29,836 Olean sand and g,ravel are ,obtained f rom many Evandale Council . 450 900 small pits, principally in t he South Arm, Flower Hobart, New Town 27 109,148 130,264 d,ale and Beaconsfi eld districts. From the last Launceston, Ravenswood 17 37,928 46,734 named 19,367 cubic yards were obtained on Nelson's, Dynnyrne 6 7,881 11 ,840 royalty payments. PrepaJred Concrete Limited Rouse's, St. Leonal':! s 7 J ;U02 21,068 of Launoeston obtained 28,575 cubic yards McHugh's, Waverley 6 3,049 4,192 valued at £28,988. 1962. (No. 18.) 17 4.-FUEL MATERIALS COAL SEYMOUR COLLIERY, SEYMOUR Quantity produced- Tons. Value £ Messrs. Yates and Haas produced 3969 tons Prior to 1958 7,464,778 7,895,216 valu ed at £8921 and employed 3 persons. This 1958 . 276,268 550,859 was less pr.oduction than was obtained last year. 1959 . 299,368 621,494 1960 297,670 673,543 NEW STANHOPE COLLIERY, AVOCA 1961 255,828 611,140 The Stanhope Coal Company produced 9915 tons valued at £24,787 and employed an average Total . 8,593,912 £10,350,252 of 12 persons. These figures are lower than last year, but sh,ould be sound economically as all Inspector Mason reports a fall in p.roduction coal won is by mechanical means. of 13 per cent or 41,842 tons. T,he number of emp,loyees decreased correspondingly from 297 MOUNT CHRISTIE COLLIERY, AVOCA to 258, of whom 170 were underground. The MT. R. C. Fenton pr·oduced 1870 tons valued pr,oduction per man-year increased f,rom 1452 8Jt £3751 and employed 2 men. This was 140 tons tons to 1505 tons for underground employees but more than last year. decreased slightly to 992 overall. MERRYWOOD COLLIERY, AVOCA CORNWALL COLLIERY, ST. MARYS Production from this co.Jliery was 32,397 tons This colliery produced 91,046 ions valued at valued at £70,739 and an average of 19 persons £221,478 at the mine and employed an average were employed. This was a decrease of 9400 of 123 persons, a production well below the tons and 5 persons. All coa,l underground is won record year of 1960. with chain conveyors by t he bord and pillar method and transported t o the surface by a belt DUNCAN COLLIERY, FINGAL conveyor which was installed towards the end of The GornwaU C,oal Company produced 81,785 the year. This belt wi1l be extended as the main tons from this mine valued at £198,175 and heading is driven. emp·loyed ·an average of 58 persons. This was LANGLOH COLLIERY, HAMILTON 20,789 tons more ihan last year as the direct The Hamilton Coal ·Company produced 3217 result of ,the mechanization plan adopted here. tons valued at £11,590 and employed an average Washed ·coa:l sold from this and the Cornwall of 10 persons. This was 2158 tons less than last Colliery amounted to 156,177 tons valued at year with 3 ·less persons. A drive has been con £381,614. t inued for some months now to make connection with the main aircourse for the second means of FINGAL COLLIERY, FINGAL egress. This will be completed soon. The This mine produced 22,519 tons valued at intrusion of a thick band of stone in the middle £51,074 and an average of 20 men were employed. of ·the seam makes the working very difficu1t and the sides fret away considerably. BARBER'S COLLIERY, FINGAL This colliery produced 6968 tons valued at SANDFLY COLLIERY, KAOOTA £13,841 and empIo·yed ·an average of 6 persons. Mr. O. L. RobeI'ts pr.oduced 2142 tons valued It is proposed to d,rive two new adits and make at £6784 and employed 4 persons. Difficulty is an entirely new mine in this area with some form experienced in selling the slack cGal from thi.s of mechanization. mine and it is left below ground. 5.-FOREIGN ORES The total value of the products of three large quantities of cadmium and cobalt oxide as by works treating foreign ores imported into Tas products. The su1phuric acid derived from mania was approximately £19,192,100. roasting the concentrates was used in making superphosphate fertilizers from phosphate rock ALUMINIUM imported from Nauru, Ocean and Christmas The Aluminium Production Corporation Ltd. Islands. acquired from the Australian Aluminium Produc t ion Commission the Bell Bay Works for the extraction ,of alumina and aluminium from imported baUldte. Local products such as coal TITANIUM DIOXIDE and .Jimestone were consumed ·in the pr·ocess. Construction of furnaces and anciHiary works Australian Ti'tan Pr·oduels Pty. Ltd. at Hey were commenced to increase production to bridge produc ed 11,603 tons of t.tanium dioxide 48,000 tons per year. from 24,572 tons of Western Australian ilmenite concentrates, an average of 393 people being FERRO ALLOYS employed. The output was 121 tons greater The Tasmanian Electro Meta].]ur.gical Com than in 1960. pany Pty. Ltd. continued construction of a plant at Bell Bay and production of ferro ",lloys is Installation of the No. 2 Process plant con scheduled to begin early in 1962. tinued and a significant rise in output is expected t owa"ds the end of 1962. A pipeHne ZINC, CADMIUM, COBALT OXIDE was extended 600 yards out to sea to carry the AND SUPERPHOSPHATE effiu ent waters into suspected offshore currents. The @ectr.01ytic Zinc Co. 'Of AustraJlasia LtJdI., Up to now inshore cur·rents have carried the Risdon, described under Zinc, produced zinc from effiuent some distances along the coast which has Broken Hi.]] concentrates together with small been sbined by the contained copperas. 1962. (No. 18.) 18 REVENUE Return showing the Revenue Collected during the Yea,· ending 31st December, 1961. Amount Head of Revenue £ Public Works and Services--Mines Department 11,000 Rent and Fees of Auriferous and Mineral Lands 19,517 Survey Fees 1,659 Fees under the E xplosives and Inflammable Liquids Act . 14,421 Rent and Sale of Government Property . 1,001 Total £47,598 Comparative Statement of Revenue from Mines, being Rents, Fees, Storage of Explosives, &c., Paid to the Treasury during the Years 1955 to 1961. Year Amount £ 1955 22,858 1956 24,260 1957 23,827 1958 22,187 1959 32,288 1960 41,726 1961 47,598 The above Statement does not include Stamp Duties upon Transfer of Leases. LEASES AND LICENCES Return showing the Total Number of Leases and Licences in Force on 31st December, 1961. Leases and Licences Number N umber of Area Sluiceheads (Acres) Bauxite 5 454 Clay 16 438 Coal 27 9,415 Copper. 2 113 Copper-Nickel 3 120 Dolomite 4 309 Easement Licences . 53 652 Feldspar 2 15 Granite 4 27 Gold 25 604 Iron Ore . 1 9 Limestone 25 1,992 Minerals . 28 10,909 Mica 1 20 Osmiridium 5 90 Ochre 2 28 Scheelite 13 897 Silica 2 14 Silver-Lead 9 1,230 Stone 24 3,352 Sand and Gravel 8 749 Tin ...... - . 165 10,538 Tin-Wolfram . 4 69 Uranium ... 1 50 Wolfram 7 1,377 Water Licences ... 121 757 1,Q43 Total ... 557 757 44,514 1962. (No. 18.) 19 Return showing Number and Area of New Leases and Licences Issued during the year ended 31st December, 1961. Leases and Licences Number Area Sluiceheads (Acres) of Water Bauxite 3 1,843 Clay and sand 1 23 Coal 3 1,843 Copper 1 80 Gold 1 5 Lead 1 10 Limestone. 4 224 Minerals . 2 80 Osmiridium and chrame 2 50 Scilleelite 5 349 Stone. 7 241 Tin 39 2,980 Tin-Wolfram 8 977 Wolfram. 1 20 Water licences 29 56 54 Total. 107 8,781 54 Return showing Number and Area of Leases and Licences Applied for during the Year ended 31st December, 1961. Leases and Licences Number Area Sluiceheads (Acres) Coal 1 60 Gold 1 80 Gold-Copper 3 180 Tin 45 3,578 'Tin-Wolfram 20 3,368 Minerals 2 80 Water Licences. 17 16 29 Total 89 7,362 29 Return Showing Pat·ticulars of Exploration Licences and Special Prospector"s Licences in Force at 31st December, 1961. Licence No. Holder Area Situation Mineral EL2/59 Electrolytic Zinc Co. of 4 squ",re S"",mander Minerals except coal Australasia Ltd. mile,} aUld oil EL3/59 Mt. Lyell Mining and Rail- 2,878 square West Coast Minerals except coal way Co. Ltd. miles and oil EL4/59 Rio 'finto Southern Pty. Ltd. 316 square West Coast Minerals except coal miles and oil EL7/59 Electrolytic Zinc Co. of 35 square Blue Tier Minerals except coal Australasia Ltd. miles aUld oil EL1/60 Haematite Explorations Pty. 28,975 square Bass Strait Petroleum oil and Ltd. miles gas EL2/60 Storeys Creek Tin Mining Co. 144 square MOOl'ina Kaolin N.L. miles EL3/61 H. K. Turner 26 square Gladstone Minerals except coa.l miles and oil EL4/61 E. R. Hudson 147 square Savage Minerals miles River EL5/61 E. R. Hudson 450 square East Coast Coal and Hmestone miles EL6/61 H . K. Turner 20 square Royal Minera;ls except coal miles George and oil S.P.L. 366 Rio Tinto Southern Pty. Ltd. 220 acres Tullah Minerals S.P.L. 367 D. W. Chisholm 3,000 acres Arthur Minerals River S.P.L. 369 M. Penney 4 square Algonkian Gold miles Rivulet S.P.L. 370 G. A. John 25 square Balfour Tin, Copper and miles Wolfram S.P.L. 371 C. C. Hurst 2.25 sq. Back Creek Gold miles S.P.L. 373 Blue Peak Gold Mines N.L. 4200 acres Arthur Minerals River S.P.L. 374 A. Miller 1,000 acres lVIt. Saddle Gold and Tin back S.P.L. 375 E. B. McDougall 6 square Tomahawk Tin miles River S.P.L. 376 Aberfoyle Tin N.L. 3 squ",re Whyte Tin miles River Total 33,048 square miles (No. 18.) 1962. 20 Return showing the Total Number and Areas of Authorities to Prospect held during the yea?' ended 31st December, 1961. Type of Authority Number Area Permits to enter on private land including owners' consents 7 7,387 acres Exploration licences 10 32,995 s q. miles Special prospectors' licences 9 34,340 acres Prospectors' licences 83 4,150 acres Miners' rights . 125 62 acres Licences to search for coal and oil 4 7,160 a cres MINERAL PRICES Table showing the Average Australian Annual Prices for Minerals During Recent Years. Mineral 1958 1959 1960 1961 £ s. d. £ s. d. £ s. d. £ s. d. Copper per ton 30713 5 314 10 0 323 6 8 306 13 4 Lead per ton 87 5 8 100 0 0 100 0 0 99 3 4 Zinc . per ton 91 7 11 106 6 5 112 8 6 101 19 1 Tin . per ton 997 6 7 1,058 1 5 1,039 13 4 1,177 13 4 Silver per oz. 0 7 11 0 8 3 0 8 6 0 8 7 Osmiridium per oz. 80 0 0 20 0 0 20 0 0 Gold per fine oz. 15 12 6 15 12 6 15 12 6 15 12 6 Wolfram per unit (W03) 91/11 128/ 2 182/5 143/2 Scheelite per unit (WO,) 91/11 128/ 2 182/2 143/2 MINERAL PRODUCTION SINCE 1880 Quantity and Value of Mineral Production as at 31st Decemb." , 1961 Mineral Total Quantity Value £A METALLIC MINERALS- Antimony (tons) 3 1,017 Bismuth (tons) 84 29,644 Cadmium (tons) 1,234 1,321,232 Cobalt Oxide (tons) 11 9,110 Copper (Blister) to 1918 (now shown under Silver and Copper) (tons) 166,600 13,788,527 Copper Matte (tons) 6,277 133,736 Copper Ore to 1918-(now shown under Copper) (tons) 41,769 577,873 Copper from 1919 (tons) 391,509 57,182,646 Crocoite .. (specimens only) 533 Gold .. (fine oz.) 2,539,832 14,338,962 Ilmenite (tons) 550 1,256 Iron Oxide (including Hematite, Limonite and Magnetite) (tons) 92,856 94,094 Lead (from 1919) " (tons) 317,884 18,058,865 Manganese (tons) I 3 Manganese Dioxide (from 1957) (tons) 758 7,250 IVlonazite (tons) 33 607 Nickel (tons) 233 40,518 Osmiridi urn .. (oz.) 31,088 708,531 Pyrites (tons) 1,400,540 2,937,921 Rutile (tons) 1 18 Scheelite (tons) 16,752 17,315,416 Silver Lead Ore to 1918 (now under Silver and Lead) (tons) 1,083,898 6,429,219 Silver from 1919 .. (fine oz.) 40,015,852 9,520,639 Sulphur as Sulphuric Acid (from 1957) (mono tons) 130,270 594,452 Tin " (tons) 145,784 33,294,331 Wolfram (tons) 13,255 8,374,904 Zinc . . (tons) 640,623 38,069,389 Zinc Snlphate (from 1957) .. (tons) 842 31,494 NON-METALLIC MINERALS- Asbestos (tons) 3,980 17,142 Barytes (tons) 2,205 8,239 Clay-(from 1958) Brick (cubic yds.) 406,065 363,628 Tile (cubic yds.) 17,976 2,048 Other (cubic yds.) 54,883 35,099 Dolomite (tons) 19,932 57,701 Graphite (tons) 40 107 Kaolin (tons) 110,480 438,227 Limestone- Agricultural and other (tons) 494,702 573,770 1962. (No. 18.) 21 MINERAL PRODUCTION-Continued. M ineral Total Quantity Value £A Chemical and Metallurgical (tons) 4,027,753 2,217,763 Carbide (tons) 576,529 712,872 Cement (tons) 3,645,013 2,120,485 Ochre (tons) 2, 174 6,414 Pebbles (from 1957) (tons) 2,955 22,153 Silica (tons) 162,637 108,467 Talc .. (tons) 333 1,077 FUEL MINERALS- Coal .. (tons) 8,593,912 10,350,252 Shale (tons) 41 ,572 31,231 CONSTRUCTION MATERIALS Building Stones- Granite . . (cubic yd •. ) 2,004 33,514 Freestone (cubic yd •. ) 657 4,203 Other (cubic yds.) 55 16 Gravel (from 1958) .. (cubic yds.) 3,056,772 1,384,760 Sand (from 1958) .. (cubic yds. ) 81,413 69,774 Crushed and Broken Stone--(from 1958) Basalt .. (cubic yds.) 124,083 91,240 Dolerite (cubic yds.) 1,590,834 2,740,093 Limestone (cubic yds.) 106,864 134,665 Sandstone (cubic yd•. ) 4,766 1,671 Other .. (cubic yds.) 407,660 285,475 Other Road Materials (cubic yds.) 28,058 19,956 £244,694,229 STATISTICS RELATING TO THE MINERAL INDUSTRY FOR THE YEAR ENDED 31st DECEMBER, 1961. Mineral Total Quantity Value £A. ---I, .VI etallic Minerals : Oadmium (tons) 62 98,286 Cobalt Oxide ( tons) 0.5,5 621 Copper .... (tons) 11,624 3,569,214 Gold ,., . (fine oz.) 24,528 383,268 Iron Oxide. (tons) 2,3'09 3,827 Lead "" "" " . ." ...... (tons) 10,278 1,026,909 Manganese Dioxide . (tons) 182 2,059 Pyrites . (tons) 71,087 213,261 Scheelite . (tons) 1,022 505,758 Silver. (fine oz.) 1,292,768 554,433 Sulphur as Sulphuric Acid (mono tons) 33,564 158,850 T in . ( tons) 879 1,022,094 Wolfram . (tons) 812 416,184 Zinc . (tons) 31,794 3,237,863 Zin c Sulphate . (tons) 187 7,154 Value of Metallic Minerals ... £11,199,781 Non-Metallic Minerals: Barytes . (tons) Nil Nil Clay: Brick. (cubic yds.) 102,104 98,490 ,Tile. (cubic yds.) 4,050 405 Other. (cubic yds.) 9,702 13,477 Dolomite . ( tons) 1,108 3,155 Kaolin. (tons) 1,232 6,383 Limestone : Agricultural (tons) 19,044 20,47,3 Carbide (tons) 26,632 45,501 Cement (tons) 132,580 121,288 Chemical ·and M~tailu rgical (tons) 24,816 46,663 Other. (tons) 270 2,835 Ochre. (tons) 75 509 Pebbles, (tons) 453 3,199 S ilica . (tons) 1,415 2.042 Value of Non-Metallic Minerals £364,420 (No. 18.) 1962. 22 Mineral Total Quantity Value £A Fuel Minerals: Coal (tons) 255,828 £611,140 Construction Materials: Crushed and Broken Stone: Basalt ... (cubic yds.) 84,242 47,94'5 Dolerite. (cubic yds.) 378,387 597,813 Limestone. (cubic yds.) 30,933 37,034 Sandstone. (cubk yds.) 480 160 Other. (cubic yds.) 77,672 62,400 Building Stone: Freestone. (cubic yds.) 139 794 Granite. (cubic yds.) 38 40 Other. (cubic yds.) 50 6 Gravels. (cubic yds.) 924,660 417,226 Sand (cubic yds.) 24,627 23,987 Other Road i\iat~~ i~'is (cubic yds.) 18,958 16,731 Value of Co nstruction Materials. £1,204,136 Total Value with Australian Metal Price::> £13,379,477 Manufactu'f·.-;d P1'oducts: Total Quantity Product- (tons) Acetylene Black 170 Ammonium Sulphate 46,255 Carbide. 13,129 Cement 106,417 Superphosphate 89,932 PTodnction from other than Tasmanian 01'C.'I : Value £A Product- Aluminium Cadmium Cobalt Oxide ...•• ·.l£16,933,417 Titanium Dioxide . . ... 1 Zinc . . ... 1 A verage number of men employed-8493. RETURN SHOWING VALUE OF THE MINERAL INDUSTRY WITH AUSTRALIAN MET AL PRICES Value £A Value £A 1956 14,374,621 1959 12,766,261 1957 12,591,687 1960 13,387,260 1958 11,838,054 1961 13,379,477 DEPARTMENTAL ACTIVITIES AID TO MINING The coaJ washing plant for which assistance was provided during 1959 and 1960 commenced Expenditure was £5921 as compared with operations early in 1961 and regular repayments £11,944 for 1960. The principal item of expendi by royalty on coal produced have been received. ture was in the form of fina:ncial assistance and £5244 was expended in this connection. Ten Mt. Bischolf Mine, Waratah.-The a.rea embrac sepa:rate applications were approved and ·advances ing and surrounding t he old Mt. Bischoff. Tin Mine has continued to be rBserved f.or tribute were made for purchase ,of plant at North Heemskirk, Zeehan, Waratah, Mt. Stronac,h, purposes under the Aid to Mining Act, 1927. Winna.!ea:h and Gladstone and one operator was Tin concentrates produced by several smalll parties assisted to become established in alluvial tin amounted to 10 tons and royaltY' of £179 was mining operations in the Derby district. received by the Department. Three p'arties were assisted in the provision of pIant, and the Depal1t The increased price of tin has resulted in ment expended £563 in further repairs to the efforts being directed to working ground pre calciner plant and in maintenance work on the viously uneconomic either because of its low CQmpreS30r and associated equipment. The level grade or because capital expenditure on plant of productive activities does not justify large and equipment was required. In cases where expenditure on plant but some further expend1ture technical officers of the Department were satis is planned ;during 1962 on maintenance and fied thnt reasonable prospects exist and economic improvement to the buHdrrng, housing cal opera:tions were possible financial assistance for ciner plant. This will complete a programme of purchase of plant was provided. In .such cases plant re-cond'itioning extending over a period of advances are secured by a registered Mortgage three years, and should enahle tributors to remain Deed covering the plant at the mine. in productive mining operations. 1962. (No. 18.) 23 Mining Plant-The equipment remained with As a result of cessa;tion of operations ·at a mine a tribute party at Waratah until the end of the where financial assistance had been provided the Department secured possession of a large port year when it was transferred to enable a company able compressor which has been reconditioned engaged in pr.ospecting on the West Coast to and is avaDlable for hire to pa>rties to test miner.al obtain bulk samples from a tin prospect for occurrences. As mentioned in my previous report testing. Arrangements were made to enlllbIe the there has been little demand for hire of the mining equipment by prospectors, who for the party at Waratah to be provided with air supplies most part are directing activities to small a.JIuvial from a large stationary compressor, m~d ' rock areas where mining plant is not required f or drHls have been hked. prospecting. STATEMENT OF RECEIPTS AND PAYMENTS OF THE MINING TRUST FUND FOR THE YEAR ENDED 31ST DECEMBER, 1961. Receipts. £ s. d . Payments. £ s. d. Balance 31st December, 1960 7,294 10 1 Assistance . 5·,244 9 5 Repayments of loans . 2,759 15 4 M'aintenance tribute plant Mt. B ischoff In terest on loans . 365 8 3 M·ine, Waratah 563 1 9 Tribute royalty 179 12 11 Maintenance mining ,plant 113 10 4 Hire of mining plant 66 5 0 Appropriation Act, 1961-62 1,000 0 0 Total 5,921 1 6 Balance to next Account 5,744 10 1 £11,665 11 7 £11,665 11 7 DRILLING was changed over to alluvial testin g. Details of the driHing are shown below:- DIAMOND DRILLING Number Total Object Three crews were engaged continuously by the of bores Footage Depal'tment in drilling on Departmental projects 17 1856 Tasman Br,jdge- pile founda· and for hi-rers. Details are as f.onows :'- tion testing. 6 187 Lyell Highway, Granton~test - LONGYEAR JUNIOR STRAITLINE DRILL mg for excavation. 17 1056 Smithton district---boring for This machine was used to test the cOIllI measures wa ter. near the Fingal mines. Hole No. 2 was com 22 2171 Sorell district-boring for water. pleted at 632 feet and No.3 was advanced to 200 1 30 Bellel'i ve-foundation testing. feet in doler.ite, the total footage being 656. The extremely bad conditions previously reported in 4300 the dolerite capping were repeated and extended in depth to 200 feet. In the Smithton district depths varied between 16 and 90 feet and the supply between 100 and GOLDFIELDS No. 10 DRILL 500 gallons per hour, except in one bore in which Following the discovery of anomalies by geo it was inadequate. physical prospecting in the Dundas tinfields, a Of the 22 bores in the SoreH district 6 were dry crew was engaged to operate this drill. The first and in 5 others the water was sal,ty. Supplies in set up was made in the Grand Prize area and the wet holes varied between 60 and 250 gallons there,after 3 holes were drilled there and 2 in the per hour. Razorback area. The total footage was 1399. MINDRILL F 20 C DRILL RUSTON BUCYRUS 22RW DRILL One hole .of 159 feet was drilled on a nickel deposit near Holwell and thence the crew moved This new machine was obtained specificaJ,ly for to Ruby Flat, near BramGholm. Here 3 holes of aIIuvilll1 tooting and towards the end of the year total footage 504 feet were put down to test out commenced work on Thureau's Lellld , St. Helens. cropp Three holes were driHed to test for 'tin, the Iota I ing veins bearing cassiterite. footage being 170. In testing the footings of Tasman Bridge piles the machine dTilled 18 holes of total footage 107 feet. The driIIing was done t hrough the unfiHed WARDEN'S COURT pi'Ie casing at considerable depth from 'a pon toon. This machine thus dr,iIled in aU 770 feet. R. C. Sulzberger v. R. M. Clarke and H. S. Ba," nett-Application fo,' fO"feiture of lease MINDRILL E1000 DRILL 491P/M, Flowery Gully. As in 1958-59 drilling from a barge was under The case was heard by the Warden of Mines at taken 'in combinwtion with a churn drHI. This Launceston who dismissed the app.Jication with was in testing Tasman Bridge pile fDundations costs. and 12 churn drill holes were extended a total distance ·of 125 feet. M. J. Dunstan v. T. N. Burrellr-Application for forfeiture of wate,' licence 6W / 60, Gladstone. CHURN DRILLING Upon the non-appearance of t he applicant wt Goldfields G33 Drills the hearing set down for the 18th July, 1961, at Two of these were used on water boring and the Wa,rden's 'Court at Launceston the applica f,otmdation testing, but one was temporarily tion was dismissed and all fees forfeited to the shut down at the end of the year when the crew Crown. (No. 18.) 1962. 24 R. A. Trickett v. F. G. Smith and L. M. Barnett STAFF Application for forfeiture of water licence 8W / 59, vicinity 01 Branxholm. The f.ol·lowing were the staff movements dur ing the year:- This applkation which was submitted to the Warden of Mines, Launceston, for hearing was Officer & Position Remarks withdrawn. King, R., Clerical Assistant-Resigned. v. J. Davis v. G. A. John and E. J. Bailey v. G. A. Forster, J., Clerica.I Assistant-Appointed. John-Objection to the grant of a Special Johnson, T., Clerical Assistant-Resigned. P"ospector's Licence of 25 square miles at Wicks, G., Clericall Assistant-Appointed. Mt. Ballou?·. Tetlow, P., Chemist-Appointed. The Warden of Mines, Devonport, to whom the objections were referred, advised thad; the Blacklow, ·C. -G . J., Cadet Chemist-Resigned. objectors claimed no estate or interest under the Austin, K., Cadet 'Chemist-Appointed. Mining Act, 1929, to :the subject land and that Brumby, P. M., Cadet Chemist-Appointed. there was consequently no .objection to determine as provided by Section 15C (4) of the Mining Fyfe, R. W., Cadet Chemist-Resigned. Act, 1929. The objections were considered by Pepper, J., Draughtsman-Appointed. the Director of Mines on an administrative basis Besford, D., Inspeotor of Mines and Explosives und were not regarded as containing sufficient Retired. gmunds to prevent a -recommendation to the Mason, J. S., Inspector of Mines and Explosives Minister that a Special Prospector's Licence Appointed. should be granted. 'Dhe licence was issued. Longman, Mrs. N., Publications Officer H. J. Clune v. H. K. Fielding-Objection to appli Resigned. cation lor lease 590 / M, vicinity of Don. Smith, Miss E., Publicati,ons Officer-Appointed. This application which was hea,rd by the MacLeod, W. N., Senior Geologist-Resigned. Warden of Mines, Devon port, concerned an application by· H. K. Field·ing f,or a stone ,lease to mine quartz on the objectors land which the obj"eotor's son had previously marked ou,t as a RETIREMENT lease to mine gravel. The Wal1den ruled that the I desire to place on record appreciation of the marking out was of no effect because gravel can services of Mr. D. Besford, Inspector of Mines not be included in a stone lease of private land and Explosives, who reached the retiring age at (Section 70 (1) and 82E). The objection was the end of the year. dismissed with costs oO"~inst the objector. H. K. Fielding v. H. J. Clune-Plaint for deter mination of compensation : Application for SCHOLARSHIPS lease 590P/ M. The Department continued its policy of award Following the decision in the case of H. J. ing one scholarship every two years to an approved Clune v. H. K. Fielding reported a,bove and with student to graduate in science at the University of the consent of all par,ties the Warden fixed the Tasmania with Geology as the maj.or subject. amount of compensation, as ·required by SecHon The 1961 scholarship wa,s awarded to Mr. T. J. 74, to enaible the issue of the lease in respect of Kennedy. The first geology schoI.arship hollder application 590P / M. Mr. Dennis Gee who has g'raduated with honours wi,II join the staff of the Department at .the begin EXEMPTIONS ning of 1962 as a Geologist. Mr. David GroOves The following exemptions were granted:- the second student to he awarded a scholarship A. D. Smith-Prospecting Claim, Lyons River. ha·s completed his E.Sc. degree and wi.].] under take an honours course during 1962. The Eagle Metal and Industrial Products Pty. Ltd. estabI.ishment of the system ,of schol·arships wi.1I Lease 45M/ 52, Zeehan. ensure a 'regular intake of Tasmanian trained D. Lathey-16M/53, 17M/53, 18M/53, 19M/53 geologists to the staff of the Department which is and 7W /56, ,Bells Hill. the principal avenue of employment in this State G. A. John, B. King and L. C. Gunther-3M/ 60- for geology graduates. "Balfour. Difficulty was experienced in filling a position Rio Tinto Australian Exploration Pty. Ltd.- as Chemist at the Department's l·aboratories at 11M/ 58, Red Hills. Launceston, and in order to pr.ovide for future staff requirements a chemistry scholarship tenabJe MINE MANAGER'S CERTIFICATES at the University of Tasmania was granted to M.r. During the year the Board of Examiners H. Skabo. granted, ,on the results of an examination, the following certificates:- Meta:J.liferous Mine Certificate-Dlive Henry PUBLICATIONS Annear, John Kenneth Allister McLeod. The following pUblications were issued during The following certificate was issued by the the year:- Board without examinat ion on presentation of a Mine Manager's Certificate issued by the Geological Map of Tasmania (8 M= 1"). recognized authority in another Stad;e:- Geological Map-Du Cane Sheet (No. 52 of Geo- Meta],Jiferous Mine Cert.ificate-Hel'bert Keith logical Atlas). Turner. Technical Reports No.5. 1962. (No. 18.) 25 MINES DRAUGHTING SECTION Photostats of diagrams forwarded to Laun- Number of working plans in use and kept ceston Office . 64 up-to-date . 242 Mining Charts brought up-to-date for Laun- Workings plans renewed and add'itional ceston. 3 plans brought into use 4 Copies of Red uced Charts prepared :1'01' Manuscripts brought up-to-date for repro- Launceston 66 duction 7 Manuscripts .traced for repr,oduction 3 APPRECIATION OF SERVICES Lithographs printed 25 Appreciation is recol1ded of the services Lithographs entered to date for sale 105 rendered by officers of the Department, including MisceUaneous plans and tracings prepared 25 officers of the Mines Draughting Section, Warden Mineral diagrams urawn 37 of Mines and Registrar of Mines in the severwl Mineral leases drawn in duplicate . 83 mining districts. Mineral leases drawn ·and described sub- ject to survey 63 J. G. SYMONS, Director of Mines. (No. IS.) 1962. 26 REPORT OF THE GEOLOGICAL SURVEY OF TASMANIA, 1961. The Chief Geologist, Terence D. Hughes, reports:- Most attention was focussed during 1961 on (2) Zeehan Centre Regional Mapping, bath for the preparation of the The /ina,l fieldwork necessary for the completion S-mile geological map of Tasmania and the con of the Zeehan I-mile Map Sheet was (b) Mackintosh At Dundas, a start was made on drij,Jing targets During the latter part of the year Geologist loca-ted by the Geophysical Section of the Bureau V. M. Threader commenced mapping in the of Mineral Resources between the Razorback and north-east port ion of the Mackintosh Quadrangle. Grand P.rize Tin Mines. Five holes, averaging The early field work was carried out from a semi 280 feet in depth, were drj.]]ed but no significant permanent field camp established in the Vale of tin zone was intersected. DriJ.ling is continuing. Belv·oir. Near Branxholm a series of greisen zones in granite were investigated by means of t hree (c) Lake St. Glair diamond drHI ho]es. Although some tin v",lues Geo1logists A. B. GuHine and W. L. Matthews were obtained at depth, the results were not commenced regional mapping of the Lake St. encourag.ing enough t o continue drilling. The Clair 1-mile sheet t owand t he end of the year. geological work in connection w.ith this investiga Up t ill the end of the year about half of the tion was done by Geologist R. Jack. Towards the sout hern a nd eastern part of the sheet had been end of the year, a new percussion driHing plant examined. A. B. Gulline carried out traverses was brought into oper.ation in the St. Helens of the eastern p·art of the s·heet from Bronte as District to test alluvial tin in a TeDtiary river well as mapping along the Lyel.1 Highway whilst depo&it known as Thureau's Deep Lead. An W. L. Matthews spent several weeks mapping a extensive dri.Jling programme extending over wide area hetween the Lyell Highway and Lake several m iles of country has been planned here. King WiJ,liam. Interest has been aroused in the old Mt. B""lfour The work so f.ar done on t his sheet has con Tin and Copper Field by prospeoting operations, tributed considerably t oward the regional map principaj,]y for tin, bya Smithton synd.icate. On ping pro·.:rramme and it is anticipated that the beha lf of this syndicate, an examination of uhe geological fieldwork wiJ.] be completed during the field was made by W. N. MacLeod and R. Jack. coming year. W. N. MacLeod carried ou t an investigation at (d) Launceston the o·ld Anchor Mine, near St. Helens a rud pre Geologist M. J. Longman has commenced map pared a drLlling plan ·to test t he t in granite there. ping the Launceston Quadrangle. Although R. Jack ·reported on a tin prospect at Gipps Creek mapping was not commenced until t he second in the Avoca District, on a possible rl~edg ing half of the year considerable progress has already area in the Lower Ringarooma River Area, and on been made and it is anticipated t hat the fieldwork an aHeged tin discovery near the old Shepherd and will be completed in the coming year. So far, Murphy Mine, Moina. effor.ts have been directed towards mapping hon Permian and Triassic sequences in the eastern part of the sheet. Although the Savage River Area has been taken up under licence, the Department is stHI (e) Arthur River Area showing an active interest and several geologists Further geological mapping, in co-.operation visi·ted the area, to give ",dvice on bore sites, with the Forestry Commission was ca!'ried out access roads, &c. Drj.]]ing continues to add bY' Geologists W. L. Matthews and M. J. Long corroboration to predicted patterns and quantities man. From helicopter camps in t he vicinity of of ore reserves. Geophysical work continued the Arthur and Frankland Rivers these officers during the summer months. completed the· reconnaissance mapping of the A report on iron deposits at Penguin Creek remainder of the Tr.owuUa Quad.rangle and the was prepar ed by M. J. Longman. Bluff Point Quadrangle. W. L. Matthews com pleted t he western po.rtion of t he Trnwutta Quad Gold r angle by means of stream traver ses of a.]] avail In his systematic appraisal of Tasmanian Gold able w""tercourses whilst M. J. Longman mapped fi el·ds V. M. Threader concent rated on uhe gold the m ajor streams and a va il ab~e outcrop. belt between Mathinna and Alberton. As a result ,of this wo·rk and mapping carried Silver-Lead out in the previous year, together with a study of the photogeology of the ·area, a reconnaissance W. N. MacLeod prepared a short 'feport and geological map has been prepared of the T'l'.owutta drilling plan on the Comet-Maest ries Lode, and Bluff P oint area embodying 'all the avai·lable Dundas, in preparation for a driHingcampaign information. there. (f) Ge neral Nickel Final checking and compilation of the 8-mile A short drm hole was put down in serpent ine Geologic",1 Map of Tasmania was undertaken and near Beaconsfield to test the nickel and chrome the m ap was completed and issued during the content of a secti·on .of that rock. No economic early pal,t of the year. A start was made with g'l'ade of eiother of these two metals was apparent. the preparation of explanatory notes on the geo logy of the Middlesex Quadrangle. This work N on-M etallies was well adv.anced by the end of the year. A report on a wollastonite deposit at Hamp shire was prepared by M. J. Longman, while he and W. L. Matthews investigated a Jimestone ECONOMIC GEOLOGY deposit near Redpa. Brick making ma-terials at Rowenwood, Kingston were the subject of a (W. N. MacLeod, Senior Geologist) r eport by M. J . Longman. Tin Most interest was focussed on tin deposits and Coal the Department was responsible for several A thin seam of Permi·an coal of excellent independent investigations as we].] as the examina (lua,uty was examined by T. D. Hughes in the tion of pr.ospects for outside interests. Takone area. (No. 18.) 1962. 28 ENGINEERING GEOLOGY AND WATER interesting a- nomalies including some without SUPPLY surface expression. Towards the end of the A senior geologist has not yet been appointed. year, a commencement was ma-de on a survey of a stil,l .Jarger area, the district between the Dam Sites Savage River a-n d Long Plains deposits. Geological features influencing several pro North-Eastern Tasmania posed dam sites were reported on by W. N. MacLeod, including those at Kingston, Aliens A commencement was made on a combined Rivulet, Baden and Oatlands. T. D. Hughes seismic and gravity survey to ascer tain the posi furnished geologicwl information on the site of tion of Deep Leads in the following areas:- a water storage tank being constructed near St. Helens, Huonville. Boobyalla, Mussel Roe, B"idge Site Great F raser. A geological r eport on alternative bridge srtes over the South Esk River at F,ingal was prepared by R. J·ack. MAPPING AND ENGINEERING DRAUGHT ING SECTION Quarry Site K. T. Kendal, Senior Draughtsman, r eports : A quarry site at Flagstaff Gully in .the Munici pality of Clarence, was reported on by W. N. Staff Movements dnring the year were as MacLeod. follows :- Mr. G. J . Dowl, Junior Mapping and Engin Miscellaneous eering Draughtsman~resigned. Core and chip samples f rom dri,lIing at the Mr. J. S. Pepper was appointej as a Draughts Hobart Bridge S ite and two locations on t he man. Hobart-New Norfolk Road were examined by R. Jack. Also examined were a gravel deposit at Operations Berriedale by W. L. Matthews and the site of a P reparation and printing of two multi-coloured television tower on Mt. Barrow by T. D. Hughes. geological ma-ps were highlights of this year's activities. The Geological Map of Tasmania was Unde"ground Water published at a scale of eight miles to one inch, and Possibilities in all par'ts ·of the State were the Du Cane Sheet No. 52 of the Geological A Uas assessed, principaHy by W. L. Matthews, who a-t a scwle of one mile to one inch. Successful also prepared a report on Underground Water applications of new fair drawing and print ing on a Land Settlement Division in the North-East techniques were features of these productions. and summarized t he r esuLts of drilling in North Compilation of the Zeehan Sheet No. 50 at a WeS'tern and Southern Tasmania. scale of one inch to oQne mile was completed toward the end of the year ,and fair drs wings 'Of this sheet PETROLOGY AND MINERALOGY were commenced. Printing of the sheet will be Petr.ological investigations included the exam effected early next year. Further progress is ination of suites of rocks col,lected by various also report ed on the Devonport 'Sheet N,o. 29. members of the geological staff at- Fifty-five monocolour geologica:l maps 'and dia Confidence Saddle and Natone Creek, grams were prepared as line blocks f or inclusion Trowutta district, in the publicatioQn Technica:l Reports No.5 (1960) Wallace and Mersey Rivers, which wa-s printed dnring the year. Six mono Lorinna district. colour geo,logical maps, sections and p:h The Comet-Maestries Lode, Dunda-s-Proposed Drilling Quar ry Site at Flagstaff Hill, Municipa1ity of Clarence: Programme: W. N. MacLeod. W. N. MacLeod. Nickel in Serpentine near Beaconsfield: T. D. Hughes. A Proposed Reservoir Si,te on Dulverton Rivulet near Brickmaking Materials at" Bowenwood ", Kingston: M. J . Oatlands: W. N . MacLeod. Longman. Proposed Drilling Programme at the Ar.'Chor Mine, Blue SECTION 4-UNDERGROUND WATER Tier: W. N. MacLeod. Underground Water on Land Settlement Division Property Possible Dredging- Area, Lower Ringarooma River: R. between Tomahawk and Boobyalla Rivers: W. L. Jack. Matthews. Geology of the Bluff Point and Trowutta Quadrangles : Results of Drilling for Water in North-Western Tas M. J. Longman and W. L. Matthews. mania: W. L. Matthews. Results of Dri11ing for Water in Southern Tasmania: SECTION 2- COAL W. L. Matthews. Coal at West Takone. SECTION 5-PETROLOGY SECTDON 3-ENGINEERING Petrological Notes on Specimens from Various Localities : rangles: M. J. Longman. Geology of the Present and Former Bridge Sites at Fingal: R. Jack. Petrologica.l Notes or.' Specimens from Various Localities: Proposed Dam Site, Whitewater Creek, Kingston : W. N. G. Everard. MacLeod. (a) Trowutta Area. Proposed Dam Si-te, Miens Rivulet, MUll'icipaJi.ty of King (b) Blythe River. t)Orou .~h: W. N. MacLeod. (c) Mt. Barrow. Water Stora;ge Area for Huon Municipal Water Supply : (d) Bond Pla.ins. T . D. Hughes. (e) Beaconsfield. Investigation of an Irrigation Dam Site on the Coal (f) Flagstaff H ill, Lindisfarne. River near Baden: W. N. MacLeod. (g) Savage River. (No. 18.) 1962. 30 REPORT OF THE CHIEF CHEMIST AND METALLURGIST. The Chief Chemist and Metallurgist, Mr. W. St. C. Manson, M. Aus. I.M.M., reports:- Analyses were made of ores, minerals, rocks, Types Number ferrous and non-ferrous alloys, days, coal, water, Qualitative Tests 56 mill and r esearch p,roducts associated with ore Radio-Activity Tests 2 dressing investigations. Silicon 91 Ore dressing r esearch ·and ·associated mill Silver . 72 operations,and a!dvice ther eon, continue to be a Sodium 42 major activity. The ceramic section tested 36 Sulphur 212 samples of clay during the year. Tantalum and Niobium 14 Determina,tions made during the year were as Tin 1,721 follows:- Titanium . 121 Tungsten 192 Types Number Vanadium . 15 Aluminium 82 Zinc 26 Antimony 21 Moisture and combined Arsenic . 30 water . 80 Barium 10 Coal Analyses 58 Berynium 4 Water Analyses. 39 Bismuth 4 Miscellaneous 52 Calcium 76 Carbon 153 Total 4,450 Chlorine . 1 Chromium 63 Copper. 27 Research Investigations undertaken Iduring the Fluorine . 1 year were as follows :- Gold 76 Types Number Iron 573 Tin 10 Lead 21 Tungstic Oxide 2 Magnesium 47 Chromite 2 Manganese 186 Coal 3 Mercu,ry . 1 Iron 3 Molybdenum . 14 Cyclone Tests 1 Nickel 59 Phosphorus . 166 Total 21 Potassium 42 RESEARCH INVESTIGATIONS, 1959-61. Clay- South Mount CameTon Examinations showed only small quantities R.362, R.364, R.365, R.366 and R.368 of very fine non-clay mineralls such as mica and qu artz, which would be difficult to separate from Five samples of decomposed granite f rom D. the minus 30 micron clay by hydraulic methods. Brown's leases, South Mount Cameron, were Clays of hi)l'h quaHty, to meet the specifications tested for thei'r suitability to produce .high quali ty above, were produced ·as follows. The raw cl-ays for use in paper manufacture as fiIler and materia,) was dispersed by agitation with 10 Ibs. coating clays. 'Dhe investigations were under per ton of sodium silieate, classified and screened t aken for the Dorset Tin Division of the Storeys to remove plus 72 mesh impurities, and t he finest Creek Tin Mining Co. quartz was rem.oved from the clay by separation Consumption of fi,ller clay in Tasmania is in ·a 30 mm. diameter cyclone at 40 p.s.i. Treat currently of the order ·of 10,000 tons per annum, ment is effective with a cyclone feed of 30 per cent and the sole consumer is t he Associated Pulp & solids. Larger cyclones ,require a more dilute Paper MiJls at Burnie. A major proportion of pulp than the .above, and with a 3 inch cyclone this company's requirements are imported fr.om the desired size separation could be obtained with England, Africa and United States of America. a feed density of not more than 20 per cent solids. The 'desired quality of filler clay is as fal·lows : For subsequent drying .operations the dispersed clay was flocculated with aluminium sulphate at Sizing.-All minus 200 mesh size. Not mo're the rate of 20 to 40 Ibs. per ton .of refined clay than t wo percent plus 30 micr ons. and filtered on a rotary fil,tel', fitted wit h strings B,·ightness.-A.S.T.M. Directional r eflectance for cake discharge. method designation E.97-55. Not ,less .than 77. F il ter cakes ranged f r om 3 to 10 Ibs. per sq. Grit.-Less than three per cent, reference to ft. per hour d epend1ent upon the nature of the the sulphur ic acid digestion method, Treadwelll sample, temperature and density of :the pulp. & Hall, pages 421 and 422, 29th Edition. F ilter cakes -contained up to 47 per cent of mois Various samples of imported ·filler clay con ture. When clay samples were below specification tained from 10 to 40 per cent of minus one micron in brig>htness, due to the presence of organic clay, and the "lays produced from the raw matter, they ·c.ou.ld usually be bleached to the material from South Mount Cameron ranged requisite brightness with small quantities of from 25 to 40 per cent of this sizing, which is sodium hy.pochlori te, or ehl.orine gas. This treat cons'idered to be satisfactory. ment was applied after final degritting by cyclone. 1962. (No. 18.) 31 Investigations were also undertaken with a centri Magnetite- Savage River fuge and .useful applica;Uons by this means were R.367 (a) thickening of portion nf the clay pulp to approximately 55 per cent solids. The quantity Two bulk samples from Adits C and D were thickened depend€d upon feed rate, and ranged submitted by the Director of Mines f.or analyses from 28 to 62 per cent of the clays fed tOo the and if necessary, beneficiation tests. Beneficiation centrifuge. The economics for this applicatIon tests were not proceeded with. are dependent upon the quantity thickened and Analyses If C" Adit /. D" Adit the filtration mte of the dilute centrifuge effluent % % after flocculation, fm' comparison with the cost of Iron (HOI. Sol.) 66.8 59.8 fioccula'tion and filtration of the total refined S111phul' 0.27 3.87 clay. (b) For sepamtion of the finest day to attain .the requ.irements for coating clays, the Phosphorus pentoxide 0.01 0.07 minus one micron content was ra;ised from a Silica . 2.07 3.23 feed of 35 per cent to 70 per cent in the clay in Alumina . 0. 88 0.88 the effiuent, with 9 per cent minus one micron Titania ...... 0.32 0.29 size in the thickened produot, thus showing a Manganese 0.13 0.17 major separation of the finest clay. R.369 Diamond d'rill cores fTom No.4 hole from 100 Tin--Ab eT/oyle Tin Mining Co. Mill Jig Tailings feet to 839 feet 9 inches were submitted to a R.362 beneficiation test by wet magnetic separation. Examinations were made of the three jig tailings to assess losses. ~ Inch Jig Tailings contained 0.22 per cent of tin, 7.7 tin units were present as free cassiterite, R.370 and 12.5 units were present as composites having Diamond drill (lores from No.5 and No. 6 an Sp.G. in excess of 2.95. Regrinding of these holes were combined for a beneficiation test by heavy composites and concentration of same, wet magnetic separation. plus the free cassiterite, resulted in a recovery The footage covered in this composite sample of 0.14 per cent of tin, and reduced the taiJ.ing was ho·le No.5, 36 feet to 871 feet 2 inches, and assay from 0.22 to 0.08 per cent. hole No.6, 52 feet t()o 559 feet 3 inches. i Inch Jig Tailing.-Examinati.on showed 4.9 Beneficiation was limited to minus 60 mesh wet tin units of free cassiterite, and 13.6 units in ground ore by ball milling and wet screening, and composites of over 2.95 Sp.G. Reg.r.inding and magnetic separation was performed in a 4 inch reconcentration, together with the free cassiter Dings belt separator. ite, ·reduced the taiHng value from 0.2 per cent to 0.08 per cent of tin. The tests included two stages of cleaning. i Inch Jig Tailing.-The sample contained 17.6 The minus 60 mesh ore samples were separ:.ted tin units as heavy composites. Regdnding of into two sizes by hydraulic classification at a these composites and concentration reduced the rising velocity ()of 20 mm. per second, and the tailings value from 0.19 per cent to under 0.1 per classifier overflow and spigot products were sub cent. jected individual.ly to magnetic separation. Results:- R.369, Hole No. 4 Per Cent Pel' Cent Distribution Product Wght. Fe S P~O ~ Fe S P:OJ CI/O Magnetics 22.0 64.5 0.3 0.05 30.6 1.2 3.4 01/0 2nd Cl. Tails 0.6 15.0 8.7 0.78 0.2 0.9 1.5 Cl i O 1st Cl. Tails 3.3 5.7 8.6 1.06 0.4 5.1 10.7 01/0 Ro. Tails 16.9 4.4 10.1 1.10 1.6 30.5 56.7 Sp. Magnetics . 47.2 65.0 0.6 0.05 66.2 5.1 7.3 Sp. 2nd Cl. Tails 0.4 26.1 11.1 0.36 0.2 0.8 0.3 Sp. 1st 01. Tails .. 0.8 12.8 16.5 0.63 0.2 2.3 1.5 Sp. Ro. Tails . 8.8 3.1 34.4 0.69 0.6 54.1 18.6 Compo Ore .. 100.0 46.4 5.6 0.33 Total Concentrates: Rougher ... 74.3 61.0 1.2 0.11 97.8 15.4 24.7 Cleaner 70.2 64.2 0.6 0.06 97.2 8.0 12.5 Recleaner 69.2 64.8 0.5 0.05 96.8 6.3 10.7 Non-Magnebics from re- cleaner separation 30.8 4.9 17.0 0.95 3.2 93.7 89.3 (No. 18.) 1962. 32 R.370, Holes 5 and 6 CliO. Magnetics 13.6 64.3 0.3 0.06 28.7 1.1 2.4 CliO. 2nd .oJ. Tails 1.3 6.6 4.0 0.70 0.3 1.4 2.7 Cl iO 1st CJ. Tails 504 2.7 2.4 0.66 0.5 3.6 10.5 CliO. Ro. Tails 30.5 1.9 3.6 0.63 1.9 3004 56.6 Sp. Magnetics 31.6 6404 0.6 0.04 66 .9 5.3 3.7 Sp. 2nd CJ. Tails . 0.3 13.0 8.1 0.43 0.1 0.7 0.4 Sp. 1st OJ. Tails . 0.8 8.8 8.3 0.41 0.2 1.8 1.0 Sp. Ro. Tails. 16.5 2.6 12.2 0.47 1.4 55.7 22.7 Compo o.re ...... 100.0 30.4 3.6 0.34 Total Concentrates: Rougher. 53.0 55.5 0.9 0.13 96.7 13.9 20.7 Cleaner 46.8 62.4 0.7 0.07 96.0 8.5 9.2 Recleaner 45.2 6404 0.5 0.05 95.6 6.4 6.1 N on-Magnebics from re cleaner separation 54.8 2.5 6.2 0.58 404 93.6 93.9 Additiona;l determinations were made as follows:- R.369 Per Ceni Al~0 3 SiO~ Mn Ti02 ) Total recleaner magnetics 0.64 3.3 0.11 0.62 Total recleaner non-magnet ics 3.23 26.7 0.11 0.62 ere . 1.44 10.5 0.11 0.62 R.370 Total recleaner magnetics . . 0.91 3.6 0.07 0.61 Total recleaner non-magnetics 7.64 37.8 0.11 0.94 ere . . 4.60 22.4 0.09 0.79 Sluice Concentmtes concentmtes were necessary to produce best R.371 quality concentrate. Several cathionic reagents A sample of sluice concentrates from the were tested and Armac C, Arquads 12/ 50 and Hampshire-Valentine Peak area containing S 50 gave similar Tesults. ilmenite, mona.zite and cassiterite was examined The f0110wing table shows the ,reagent con for concentration {)f the ca.ssiterite. @ecbro sumpt ion for treatment of a deslimed feed to magnetic sepa.ration to remove the Hmenite and produce a mica concentrate amounting to 23 per monazite, and concentration of the cassitedte in cent of the feed. the non-magnetics presented no difficulties. The Reagent! Consumption Sulphuric Armac C Aero(roth concentrate sizing was all minus 6 mesh, and all Stage Acid 73 plus 200 mesh. Ibs-/ton lbs.fton lbe.jton Rougher 0.8 0.65 0.08 1st Cleaner 0.3 0.20 0.04 Mica.-Gladstone 2nd Gleaner 0.3 0.20 0.04 3rd Cleaner 0.3 0.20 0.04 R.363 & R.372 Extensi ve deposits of weathered greisenized Total 1.7 1.25 0.20 granite OCcur at Glad3tone, and consist essentially of muscovite mica, quartz, and a minor quantity pH value of pulps ranged from 2.5 to 2.9. of feldspar. The material conta-ins some Telatively Reagent costs per ton of concentrate amounted to coarse quartz. Examina-tions show that quartz 56s., and prohably this mte of usage would be predominates in the coarser sizes, and start to r ed uced in a commercial p'lant. show ma-rked increases in mica content from 44 mesh s izes and finer. Consequently there is s·ome Sizing of the Concentmte prospect of sa-Ie for material screened to this Mesh % Weight size. Minus 36 plus 44 mesh size contained 14 per cent ·of mica, and evenly increased to plus + 60. 1.2 70 per cent at approximately 100 mesh size. The + 85 5.1 mica content of screen undersize would vary with + 100 . 3.0 the screen size, and it can be anticipated that +150 . 10.8 the mica content would range fr·om 40 to 70 per + 200. 8.1 cent for separations from 30 to 80 mesh. Screen - 200+30 microns 71.8 undersize contains some mica bea,ring slimes, Coal-Stanhope Washery and minus 30 micron fractions on samples tested showed 20 per cent of t his fraction. R.373 Investigations were undertaken to produce a A sample of washery r eject was obtained from high grade quaI>ty product by flotation. Flota the dump and was examined by sink-float method tion with cathionic reagents at low pH values !lit va-vious sizes and densities, and 3.6 per cent produced mica concentrates of high quality, con of the sample was found to be usefUlI coal, with taining approx:im8Jtely 98 per cent of mica. an ash content of 22 per cent. Previous investiga Desliming is necessary .prior to flotation, and tions of seam samples showed a reject .of 15 to three stages of cleaning of the rougher fI'otation 20 per cent, and assuming tha:t the reject a mounts 1962. (No. 18.) 33 to 25 to 30 per cent of the mined ooal, the useful Tin-Aberfoyle Tin N .L. Slime Table Concentmte coal 'in the reject amounts to about 1 per cent of R.382 the coal as mined. If this is -representative of the single table washery plant operation is most A sample of plant slime table concentraJtes was satisfactory. infrasized, -and the tin and wolfram content of ------each fraction determined. The sizing showed MiUSurveys that little material below the 20-30 micron size range was recovered in the slime table concen A survey -of the concentration plant of the trates. Storey's Creek Tin Mining Co. N.L. was carried out in September, 1959, aUld a survey of the con centration plant of the kberf,oyle Tin Mining Tin-Aberfoyle Tin N.L. Slime Table Feed Co. N.L. was undertaken in April, 1960. R.391 The obj ects of these investigaJtions were to A pilot plant test was carried out on a sample assess the perf.ormance of -the concentrating of slime table feed from the company's plant. plants, determine the nature of avoidable losses, Treatment involved ~es limin g by cyeloning, and recommend amendments to treatment to desulphidizing by flotation, and tabling of the improve recoveries. deslimed and desulphidized tailing. ------The test showed:- Tin-Abej'foyle Tin N.L. Slime Table Tailings (1) The feed may be deslimed by cycJoning R.374 with negligible loss of recoverable A sample of plant sHme table tai_lings was tin. examined by sizing and elutriation, followed by (2) The deslimed feed is readily desulphi assay of the fractions. The sample assayed 0.84 d'ized by flotation, wi-th negligible loss per cent tin. About 32 per cent of the tin was of recoverable tin. coarser ,than 20 microns, and should be recover (3) The overall pilat plant test taHing was able if in -nhe f-ree state. considerably lower than normal prac tice, but it is difficult to compare the results of the pilot plant test with Tin-Renison Associated Tin Mines N.L. plant performance due ,to lack of data. R.377 (4) The sulphides contained 8.05 per cent A pulp sample of gravity section mill feed copper and 25.4 ounces of sHver per (desulphidized- flotation tai-ling) was sized and ton. This is possilily a saleable pro elutriated, and the sulphur content of each duct. fradion was determined. Tin-A b m'foyle Tin N.L. (Tin Development Tin-Aberfoyle Tin. N.L. Slime Table Tailings Partnership) R.379 R.390, R.392, R.394 and R.395 Six pulp samples of slime table tailings, each Concentration tests were carried out on reject r epresenting one week's pl'Oduction, were sub samples of diamond drill core from Al'd-lethan, mitted for investigation into the nature of the N,S.W., to obtain data relating to the recovery tin losses in these tailings. of tin by gravity concentration. Depth of most The ta,lings received assayed about 1.2-1.3 per driH holes was 2-50 feet, and composite samples cent tin, and about 0.65 per cent W03 • Between were made up to represent each 50 feet of drm 20 and 40 percent of the tin and about 20 per core. cent of the WO, in these tailings -is -recoverable Investigation R.390 : Hole DP1 by gravity concentration ina comparatively high Investigation R.392: Hole DP2. grade concentrate. The pulp can be deslimed Investigation R.394: Hole NCl. by cycloning w;,thout loss of recoverable tin and Investigation R.395: Hole DP3. wolfram. It was suggested that consideration The composite s-amples were roll crushed and be given to desliming and desulphidizing the feed ball mi-lJ ground to minus 44 mesh. Sulphides to the slime tables. were removed by flotation. The minus 44 mesh product was screened at 60, 100 and 200 mesh, Tin-Renison Associated Tin Mines N.L. and the four sized products tabled separately. R.380 Middlings from table concentration were reground and r eturned to the next stage of concentration. Samples of products of tin ore were washed on a fluidized bed under oxid-izing conditions by Vanning concentration tests were also carried the chemical engineering section of the C.S.I.R.O., out on each 50 feet compos-ite samr>le. Melbourne, aUld the produots from this treatment A heavy liquid separation was carried out on and magnetic separation were submitted for con a minus 5 mesh composite sample -representing centration of the cassiterite. each hole. Concentration te-sts gave recoveries of 64-66 Table ooncentration tests can be summarized per cent of the tin in concentrates of 63-67 per as- cent tin, -or ~lternatively a recovery of 74 per Sample Composite Combined Combined % Recovery No. Head Concentrate Tailings c4 Sn in cent of -the tin in a concentrate of 56 per cent % Sn % Sn % Sn Concentrate tin fwm the" non-magnetic" sample. R.390A 0.36 9.2 0.17 52.6 R.390B 0.46 10.1 0.19 59.0 Improved concentration results were obtained R.390C 0.44 12.3 0.23 48.9 by solution of some of the gangue minerals by R.390D 0.34 7.6 0.13 62.7 aqua regia or sulphuric acid before concentration, R.390E 0.41 9.6 0.16 resulting -in -recoveries of up to 78 ito 87 per cent 62.6 of the tin in concentrates assaying 68 to 73 per Average 0.40 9.8 0.18 cent tin. 57.2 (No. 18.) 1962. 34 Combined 0/0 Recovery Sample Composite Combined Chromite-Ben Lomond Mining Co. Head Concentrate Tailings of Sn in No. 0/0 Sn % Sn % Sn Concentrate R.376 R.392A 0.21 5.1 0.08 64.0 A sample of nickelifercus clay from the R.392B 0.34 9.7 0.12 66.8 Beaconsfield area was submit.ted for chromite R.39ZC 0.27 7.9 0.09 67.5 concentration tests. Low grade chromite con R.392D 0.41 12.0 0.16 63.4 centra;tes, containing up to 24 per cent Cr,O, R.392E 0.48 14.9 0.18 62.9 were produced. Avera.ge 0.34 9.9 0.13 64.9 R.394A 0040 24.5 0.14 63.8 Ch1"omite-Ben Lomond Mining Co. R.394B 0.40 22.7 0.13 68.9 R.394C 0.73 29.9 0.23 69.6 R.384 Three samples from Beaconsfield are.a were Ave.rage 0.51 25.7 0.17 67.4 tested for chromi"te and magnetite beneficiation. Treatment consisted of desliming and removal R.395A 0.28 19.9 0.07 74.6 of the 10 mesh oversize by screening, gr'uvity R.395B 0.66 ~11.3 0.19 67.4 concentration of the undersize, and sepa::ation .of R.395C 0.74 31.2 0.22 70.5 the magnetite and chromi,te by magnetic separa- R.395D 0.61 25.7 0.19 69.1 tion. 0.20 68.1 % R.395E 0.63 25.8 Weight Cr.O, Ni Fe Sample R.384/1: Avemge 0.58 26.8 0.17 69.9 Magnetite concentrate 6.5 1.71 0.41 57.8 ----- Chromite concentrate 2.0 55.4 Nil 26.5 Composite samples ·t o represent each h ole were Sample R.384/3; Mragnetite concentrate 10.8 1.4 0.22 59.8 crushed minus 5 mesh. Heavy liquid separa Chromite concentrate 4.2 54.9 Nil 27.5 tions were carried out on the pilus 10 and plus 60 mesh fractions. No sensible concentration was obtained for sample R.384/2. Resu,lts may be summarized as- The chromite is almost entirely minus 30 mesh Minus 5 mesh plus 10 mesh fractions : float p'roducts size. The magnetite is mostly plus 20 mesh. % % Sample Weight Sn Proportion of Sn in Head R.390 31.5 0.25 20.3 R.392 22.1 0.21 14.0 Coa~C01'nwaU Coal Mining Co . Washery Pro R.394 39.8 0.22 16.9 ducts R.395 36.7 0.26 17.3 R.378 Minus 10 mesh plus 30 mesh fnt-ctions : float products Two specimens of washery midd1ing coal were % % broken to minus one inch size and .tested in heavy Sample Weight Sn Proportion of Sn in Read liquids to determine the p.ossibiHty of recovering R.390 38.5 0.15 14.8 salea;ble coal by crushing and re-jigging the R.392 39.7 0.10 12.0 co.arse jig middlings which currently go to waste. R.394 32.7 0.13 8.2 Tests indicated that sa·leaNe coa;l could be R.395 29.9 0.10 5.5 recovered by retreating the middlings. Wolfrarn-Aberfoyle Tin N.L. Wolfram Concen trate R.375 Coa~ComwaU Coal Co. Washery Products A pulp sample of "wolfram seconds ex acid R.385 vat and flotation" was tested to determine the A sample of coarse washery rejects which had causes of the material nodulizing on drying. The been crushed to minus It inch size was tested in nodu].izing appears to be due to presence of salts heavy liquids to determine the possibility of and was largely eliminated by water washing. recovering useful coal from the crushed product. The wolf-ram content of the non-magnetic fr·ac The tests indicate that wbout 40 per cent by tion was markedly reduced during subsequent weight of the crushed reject could be recovered magnetic separation. as useful coal, with an ash content of 2·5.7 per ------cent. The ash contents of the 'fraCJtions with Wolfmm-Storeys Creek Tin Jl;iining Co. specific gravities less than 1.6 increase with Thickener Slimes increase in size from 22.2 per cent from the plush inch to 30.3 per cent for the plus ! inch R.393 size. The three inch Warman cyclone unit was inst3!lled for a short period at the Storeys Creek mill to handle sHme thickener underflow. A tabling test was ca;rried out on a sample of the Coa~CornwaU Coal Co. Washery Products. cyclone underflow ,to determine the quantity of R.388 recoverable wolfram in the sample. Some 31.4 A sample of fine coal slurry from the over per cent of the tungstic oxiide was recovered in flow of ,the settling cone at the washery at Fingal a concentrate assaying 17.5 per cent tungstic was ·received. The product is a waste product, oxide. The concentrate contained appreciable and is deposited in dams for settlement and su,lphides. The tungstic oxide content of the natur·al drying. The company requested pre table tailings was 1.83 per cent of which about liminary tests directed at reducing the quantity 9.4 per cent is finer than 20 microns. and would of solids sent to the dams. The slurry contained not be economica;lly re.coverable by gravity con 18 per cent by weight of solids. The solids centration. were 73 per cent minus 350 mesh. 1962. (No. 18.) 35 The fineness of the feed and the low specifie A hea,d sample was ·taken fr·om the eomposite, gravi.ty of the solids makes cycloning, filtration and assayed with the following results:- or settlement difficult. A reasonably thick Iron . 47.6 per cent cyclone underflow can be obtained, but the under Sulphur 5.84 per cent flow eontains less than one fifth of the solids. Phosphorus 0.12 per cent FHtr-atkm ra,tes are very slow, probably due to Silicon. 4.18 per cent the presence of appreciwble clay-like slimes. Alumina . 2.04 per cent Flotation gives a product 'bhat should be sa;leable. Titanium . 0.42 per cent Manganese 0.10 per cent Magnetite-Savage River Vanadium 0.30 per cent R.383 The sample contained 47.6 per cent .of iron, Beneficiation tests were performed on a bulk 0.12 per cent of ph.osphorus, and 5.84 per cent of sample representing selected sections of diamond sulphur. dri-ll core from holes numbered 7, 9 and 10 of the Weight yields .of magnet ic concentrate ranged Savage River iron ore deposits. from 88.5 per cent of minus *inch size to 67.5 per cent at minus 200 mesh. Iron recoveries were Sections of ore specified were: rugh, the lowest recovery being 96.3 per cent Bore hole No. 7 477' to 782' from separation at minus 200 mesh. Bore hole No. 9 178' to 231' Beneficiation at minus Ii inch was not appreci Bore hole No. 9 268' to 497' aNy' better than at minus j} inch. Figures shown Bore hole No. 10 95' to 114' in the test flow-sheet indicate the reason for this, Bore hole No. 10 124' to 276' only sma11 amounts of non-magnetic material being released by crushing of j} inch magnetics Bore hole No. 10 318' to 331' A. Any gain in quality from this operation is Bore hole No. 10 359' to 438' nearly counter-balanced by the inclusion of small T.he sample was composed from jaw crushed amounts of low grade magnetic material ·released residues from ·I.aboratory assay samples. A by the crushings of& non-magnetics B. small number of samp·les was not available for Beneficiation at minus 18 mesh showed a the make up of the composite, but the weight of sharp increase in concentrate quality over minus these is not significant, and the sample may be ,\ inch operations. This trend continues wJth finer regarded as typ.ica.J of the section of core speci grinddng .of the feed and is olearly indicated in the fied. fonowing summary of the magnetic concentrates. Magnetic P1'oducts Per Cer.,t Size of Sepal'a tion Wght. Fe Fe S P Al:0 3 Si Mn Ti V Dist. *inch . 88.5 53.4 99.3 4.59 0.09 1.49 3.00 0.10 0.40 0.34 i inch . 87.8 53.8 99.2 4.59 0.09 1.47 2.91 0.10 0.40 0.34 *inch 86.6 54.6 99.1 4.26 0.08 1.49 2.96 0.10 0.40 0.34 18 mesh 74.9 61.8 97.4 1.63 0.03 1.09 1.78 0.10 0.40 0.35 60 mesh 70.7 65.1 97.0 0.75 0.02 0.91 1.22 0.10 0.40 0.38 100 mesh . 68.5 66.7 96.4 0.32 0.02 0.91 0.94 0.09 0.31 0.37 200 mesh. 67.5 67.9 96.3 0.33 0.02 0.88 0.80 0.09 0.31 0.37 No Beneficiati.on 100.0 47.6 100.0 5.84 0.12 2.04 4.18 0.10 0.42 0.30 Rejection of impurities generally increases Iron Ore-Industrial and Mining Investigations with fine grinding of separator feed, and the Pty. Ltd., Blythe River pattern is similar to that shown in most previous investigations. A full ta.bul~tion of percentages R.386 rejection of impurIties appears below. Two samples of ore from the Blythe River Sizo of Per Cent Rejection of deposits were submitted by Industrial and Mining Separation S P AIPa Si Mn Ti Investigations Pty. Ltd. for beneficiation tes.ts to ~ inch 26.9 33.1 40.7 36.6 12.9 16.6 :\ inch 27.4 34.6 42.1 38.6 13.9 17.3 produce a concentrate containing over 60 per cent linch .. 3(1.7 39.3 42.3 38.7 13.9 17.1 ir.on s uitable for export to Japan. 18 mesh 78.4 79.2 60.0 68.1 25.7 28.7 60 mesh 91.0 88.0 68.5 79.4 29.7 32.8 Each samp.]e weighed approximately nine cwt. 100 mes·h 96.1 88.9 69.5 84.6 38.6 49.6 200 mesh 96.1 89.7 70.9 87.1 39.6 50.4 Sample R.386A, marked Bly-N, w.as stated to Siz'ing be from the Northern Adit. Sample R.386B, Sizinlr of Separator Feeds Size Per Cent Per Cent Per Cent marked BIy-S, was stated ,to be from an ore t inch feed i inch feed I inch feed deposit dump on the left bank of the B1lythe -I" + l" 14.3 River, and is bel·ieved to have come out of the -,"+ ," 31.4 38.0 Southern Adit. 44 mesh 36.4 42.4 75.2 --44." +mesh 17.9 19.6 24.8 The ore consists of massive hematite with Sizing of Separator Feeds Per Cent Per Cent P er Cent Per Cent irregular broken veins of quartz, in places Size B.S.S. IS mesh 60 mesh 100 mesh 2.00 mesh (nominal) coloured red by contained hematite and Hmonite. - 18+ 60 mesh 50.3 Trace Sizing Specijication.-A tentative sizing specifi - 60+,J00 cation f,or the upgraded concentrate was suppl.ied mesh 17.5 39.3 Trace -100+1~0 by Industrial and Mining Investigations Pty. Ltd. mesh 10.6 21.4 27.0 Trace for our guidance, as fol-Iows:- -150+2.00 mesh 2.6 10.9 18.0 15.5 Eighty-five per cent minus 3 mm. -200 mesh 19.0 28.4 55.0 84.5 Less than 15 pe'r cent minus 150 mesh. (No. 18.) 1962. 36 Summary diameter Warman cyclone test unit, and recom Two samples, R.386A and R.386-B, tested from mendations were made for the instaUation of 6 the Blythe River deposits, were comparatively inch cyclones in the plant. higih grade, assaying 55.9 and 52.4 per cent iron The following ceramic tests were conducted .respectively. during the year. By gravity concentration, it is possible to obtain concentrates in excess of 60 per cent ir.on, Reg. No. Receivl3d /,rom Locality and containing about 92 per cent and 85 per cent 188 McHugh Bros. Compan'Y's Works of the iron Tespecnively. 368 W. C. Hodgman Kingston Due to 'the fine grained nature of the ore, it is not poosLble to rej ect significant quantities of &;9 W. C. Hodgman Kingston clean tailings coarser than about 150 mesh. 372 Director of Mines Lileah Regrinding of the tailings fmm concentration of (H. A. Dobson) the coarser sizes allows f urther recovery of -iron 46 1 Director of Mines Lileah in good grade concentrates. (H. A. Dobson) The ,logical concentration procedure appears Departmental to involve:- 528-538 Gladstone (1) Initial grinding to approximately minus 899 C. C. Hurst Back Creek, Lefroy 5 mesh, rollowed by close sizing of 900 H. C. Lawry St. Helens the ground material; 1404-1412 (2) Concentr,.tion of plus 20 or 40 mesh McHugh Bros. Company's Works material by jigging; 148·3 McHugh Bros. Granton Brick (3) Concentration of minus 20 or 40 mesh Works plus 150 mesh material by Humphreys 1641-1 646 . McHugh Bros. Company's Works Spimls; (4) ·Concentration of minus 150 mesh 1991 McHugh Bros. Granton material by tabling. 1992 McHugh Bros. Hamilton The concentrate wiJ.] appr.oximately meet the tentative sizing specification supplied by Indus trial and Mining Investigations Pty. Ltd. PUBLICATIONS Impurities in Iron Concentrates.-Gomposiie The following- reports were prepared for inclu samples were made from the concentrates from sion in Technical Reports No. 6:- the jigging and tabling .tests on samples R.386A R.361, R.364, R.365, R.366, R.368-Clay, South Mount and R.386B. These concentrates had the follow Cameron. ing compositions:- R.369, R.370, R.S83- Magnetite, Savage River. Per Cent R.386A R.386B R.371-Heavy Minerals, Hampshire-Val entine Peak area. Phosphorus (P) 0.04 0.01 R.372, R.372A-Mica, Gladstone. Sulphur (S) 0.02 0.02 R.373-Stanhope Coal Company. Silica (.si02 ) 10.8 13.5 R.374, R.379, R.382, R.391-Slime Table Tailings, Con centrate and Feed, A'berfoyle Tin Mining Company, TItania (TiO,) 0.02 0.01 N.L. Manganese (M n) 0.10 0.02 R.375- Wolfram, A'berfoyle Tin ,Mining Company, N.L. Vanadium (V) Trace Trace R.376, R.384-Chromite from Nickeliferous Clay, These concentmtes are particularly free of the Beaconsfield. common contaminents of iron ores. R.377-Sulphur Content of Mill Gravity Section Feed, Ren-ison Associated Tin Mines, N .L. R.378, R.3·&; , R.38S--- (Compiled by the Assistant Chief Inspector of Mines, Mr. P. M. Johnstone, B.E., M.Aus.I.M.M. ) The Chief In&pector of Mines, Mr. J. G. SYMONS, B.E., M.Aus.I.M.M. reponts :- THE MINES AND WORKS REGULATION J. Morrison, Australian Titan Products: Lost footing on construction steelwork ·and fell j broken rpelvis. ACT, 1915 F. E. DoLbey, Merrywood Colliery: Struck by falling prop which he was placing; 'broken foot. EMPLOYMENT M. L. J. Berry, Mt. Lyell Co.: Tripped and fell over machine under repairs; broken ruhs. The average number of persons employed in R. Hartshorn, E.Z. Co. Risdon : Struck by lead ingot the mining, metallurgical and quar.rying industry dislodged from stack; broken foot. M. D. Heywood, Barber's Colliery: Struck iby falling during the year was 8493. This represents an bar which he was setting; broken leg. increase of 194, which was evenly spread over the E. Hedley, MerrYiWood CoUiery: Caught foot in chain whole industry, with t he exception of coal min conveyor; broken and dislocated. ing where a decrease was recorded'. Coal mining G. T. Roberts, Sandfly Colliery: Struck iby fall of roof; broken pelvis. is passing through a difficult period, owing to B. Neal, E.Z. ,Co., Rosebery: Struck by stone I'olling down competition, but other sections appear hewlthy hill; broken' .leg. although the low price for tungsten is a cause of J. Crnagoj, E.Z. Co., Rosebery: Struck by scat whilst concern. spalling; lost 'eye. A. J. Matthews, Mt. LyeH Co.: Lorry he was driving went ACCIDENTS over dump when edge gave way; broken ribs and collapsed lung. The number of registered accidents was 108 J . F. Galvin, Mt. Lyell Co. : Slipped and fell in doorway: in which 107 persons were injured, an increase 'broken shoulder. of 15, and one killed. In calculating the rates L, Potter, Mt. Lyell Co.: Caught ,between railway waggon per thousand, 81 employees in the total of 8493 and post; broken' arm. Z. Novack, Ut. Lyell Co.: Pile of concentrates collapsed were disregarded because their employers do not whilst being picked down; broken leg. submit accident reports. G. G. Williscroft, Mt. Lyell Co,: Caught hand in brake wheel of railway truck whilst operating; broken arm. DESCRIPTION OF FATAL AND SERIOUS .T. 'Vegerbaner, Mt. Lyell Co.: Involved in explosion of ACCIDENTS partially slaked lime in drum; broken' arm. Fatal J. Batik, Mt. Lyell Co.: Jammed between bogger and wall of drive whilst -re-railing; broken arm. M. G. O'Dea, E.Z. Co., Rosebery: Fell through hatchway J. Stekar, AJberfoyle Tin: Struck by fall of ground; in mill 'building. broken leg. J. Lockwood, A.P. Corp.: Struck Iby dislodged load whilst Serious riding on trailer tow-bar; broken rib and epicondyle. A. Reynolds, Cor nwall Colliery: Caught against machine A. Henry, A.P. Corp.: Foot slipped on safety mat into by moving trolley; crushed legs. furnace bath; burnt leg, R. Smedley, E.Z. Co., Risdon: Fell from scaffold when F. Nerreth, A,berfoyle Tin: Struck by fall of ground; suspension rope came adrif,tj broken head. broken back and pelVIS. LOCATION OF ACCIDENTS Underground Surface Total Number of Persons- Number of Persons- N u mber of Persons- Type of Mining "li "li ~• "li > ~ ~ ~] .8 ~ ~ ~ ] ~] A ," A ,g ~~ ~ .g E g-" ;g 1il5'2 E -" 1il ~'2 E -" 1il1':.~ " .. O~ "' ~ .. O ~ " ~ "' ~~~ Coal 170 11 6.5 88 "' 3 3.4 258 14 5.4 Copper 60 3 5.0 1,545 15 1.0 1,605 18 1.1 Silver-lead-zinc. 322 16 5.0 446 1 8 2.0 7·68 1 24 3.1 Tin and Tungsten 282 27 9.6 463 4 0.9 745 31 4.2 Quarries, Works, &c. 5,036 21 0.4 5,036 21 0.4 Total 834 57 6.8 7,578 1 51 0.7 8,412 1 108 1.3 Not reported 81 81 7,659 8,493 (No. 18.) 1962. 38 OOMPARATIVE TABLE SHOWING RATES PER THOUSAND KILLED OR INJURED Number of N umber of Persons Number per Thousand Period Persons Number of Employed Aecidenb Killed Injured Total Killed Inj ut'ed T otal 1892-1930' 1931-1941lf 1941-1900, 1951 5928 49 2 50 52 0.337 8.335 8.772 1952 . 6820 62 1 61 62 0.147 8.944 9.091 1953 . 7370 73 6 67 73 0.801 9.091 9.892 1954 . 7289 75 3 72 75 0.411 9.877 10.289 1955 . 7095 98 4 96 100 0.563 13.531 14.094 1956 . 7692 130 4 126 130 0.520 16.381 16.901 1957 .. 8137 79 80 80 10.786 10.786 1958 8309 103 3 100 103 0.399 13.303 13.702 1959 8236 92 2 91 93 0.269 12.256 12.525 1960 . 8299 93 1 92 93 0.133 12.309 12.443 1961 . 8493 IQ3 1 107 108 0.119 12.720 12.839 '" See Rep<>rt of Director of Mines-1954. tSee Report of Director of Mines- 1956. :I: See Report of nfrector of Mines-1960. INOIDENCE OF AOCIDENTS Number of Per. Number of Per Number of sons Injured (In_ Number of sons Injured (In Place and Cause of Accident Persons capa.citau-d for Place and Cause of Aeddent Persons capacitateodi for Killed over 14 days), Killed over 14 days). Section A.-Metallije?'O'U8 i.Uines- 5. Above Ground: (a) Machinery in Motion 1- Below Ground: (b) Other Causes 3 (tt) Explosions . (b) Falls of Ground 7 Total Coal Mines (B) 14 (c) Falling down Shaf.ts, &c .. 3 Total All Mines (A and B) 1 107 (d) Other Causes 35 2. Above Ground: (a) Machinery in Motion 9 (b) Other Causes 1 20 INSPECTION 3. Accidents In Batteries, Ore-dressing, Smelting Mr. D. Besford, Inspector of Mines and Explo and other Metallurgical sives on the coal fields retired at the end of the Works, &c. 19 year and this place was taken by Mr. J. S. Mason. Mr. H. L. Olds, Inspector of Mines and ExpIo.sives, Total Metalliferous Mines (A) 1 93 Hobart, resigned in January and his post remained vacant throughout the year. Section B-Coal Mines- 4. Below Ground: (a) Mine Explosions SHOTFIRERS' PERMITS (fire damp, &c.) (b) Explosives (dyna- Permits to act as sh EXPLOSIVES ACT, 1916 The following quantities of ex!>losives and blasting agents were imported during the year at .the ports shown :- Currie Hohnrt Launceston Burnie Straha.n U1verstone T otal Nitro-compounds (Jb.) 33,100 266,400 703,300 42.5,450 561.450 1,989,700 Detonators, &c. 20,000 125 2,800 180 1,605,700 1,6.28,805 Ammonium Nitrate (lb.) 670,808 There were 29 shipments Ilanded, a decrease cost-saving and each has its speci.a,l applications. of 10, and each was inspected INFLAMMABLE LIQUIDS ACT, 1929 The fol,lowing quantities in tons of inflammable liquids were imported in bulk during the year through the ports shown:- Hobart Devonport B.ll Bay N'arracoopa Total Aviation Gaso,1ine 1,315 1,257 2,572 Benzol 500 500 Kerosene, Aviation 6,281 6,281 Kerosene, Lighting 2,879 475 3,354 Kerosene, Power . 1,200 1,951 3,151 MOltor Spirit, Premium 36,325 19,941 17,452 73,718 Motor Spirit, Regular. 25,754 13,455 12,823 551 52,583 Total 74,254 35,822 31,532 551 142,159 Tank Ships (No.) 26 12 8 1 47 There were two 'less tank ships than in the previous year and the quantity ,landed· was 12,670 tons less. ACCIDENTS During the year ,the POl't instwllation at Burnie One accildent occurred when a vapour train for .the discharge of petrol was completed ready from vats of highly inflammable liquid was for the first tankship. Preliminary approval ignited. The liquid was iheated for the dissolu was given for the use of dracones for the carriage tion of paraffin wax, and in the resulting explo sion 7 persons were inju.red, one fatally. of inflammable ,liquid between Hobart and Flinders Island. The dracones (flexible sausage INSPECTIONS like containers of 12,000 gallons capacity) are At the 30th June the number of licensed to be towed behind regular trading vessels. A premises was 1923, a n increase of 208 in 12 large hulk storage depot was transferred to a months. new site at Launceston. (No. 18.) 1962. 40 REPORTS OF THE INSPECTORS OF MINES AND EXPLOSIVES Inspector L. W. MORRIS, A.W.A.S.M., area and was on the second hole prospecting M.Aus.I.M.M., Launceston, reports:- anomalies .on the possible e>otension of Razorback mineralization at the end 'of the year. Prospect EMPLOYMENT ing by the E.Z. Company in conjunction with the 11he average number ,of persons emp,loyed in Mt. Lyell Company and Rio Tinto Australian the industry was 1494 of whom 254 were engaged Exp,)orakion Company continued on a small scale. underground. These figures dlo not inolude emp],oyees ,of the Hydro-Electric Commission at EMPLOYMENT Poatina, or employees engaged on the construc The average number of men employed in the tion of the fervo-manganese plant at Bell Bay for industry was distribut ed as follows:- the Tasmanian Electro Metal1urgical Company Quarry or Open cut 261 Pty. Ltd. Other Surface _ 1,784 ACCIDENTS Underground 407 There were 33 accidents reported as having caused 14 or more days lost time; of t hese, three Tota:l 2,452 could be classed as serious, the balance minor. Of the serious accidents, two were caused by falls of rock underground, one man suffering The decrease of appr,oximately 285 in the fractures to the base of the spine and pelvis, the " Quarry .or Opencut" figu,re and the correspond other a broken leg. The other serIous accident ing increase in the" Other Surface" is due to an ocwrred when a man's foot slipped into the bath alteration in the method of classification, but there of a furnace. His f.oot was bad,ly burnt, and more is ,an increase of 'over 100 in the total. serious idamage woOuld have been suffered, but for the use of special footware. The accident ACCIDENTS figwres do not include accidents at the Hydro The total number of accidents reported during Electric Commission, Poatina, which are not the year was 39, and of these ,one was fatal, and reported. 14 were serious. The fatal 'accident occurred in a miH w,hen a rigger slipped while opening a trap HEALTH AND SANITATION door and feB 20 feet to the concrete floo,r be],ow. Inspections have been directed to maintenance Of the serious accidents, eight occurred on the of adequate ventilation, sanitat ion and safety surfa;;e. Two railway workers suffered broken practice in mines. Ventilation in the two under arms, one during shunting operations, and one ground oper'ating mines is greatly improved, and when releasing the brake of a stationary truck. installation of exhaust fans is expeoted to The driver of a ,Euclid th-at slipped over a tip furt:her imp'TOve conditions. Equipment for sustained broken ribs, a smelter worker ihad a feading hydraulic fill to both mines is being leg broken when a falling Jump of concentraote installed. Generally orib rooms, change houses jammed him agaoinst a post, a miU woOrker had and other facilities are satisf,actory. his arm broken when a bucket of incompletely sl,aked lime exploded, an electrician who tried to EXPLOSIVES AND INFLAMMABLE rill'ht :a passing truck lost part of his thumb, a LIQUIDS jani,tor fell in the office and broke his shoulder, and a fitter sustained a disc lesion while using Explosives and inflammable liquid storages a crowbar. have been inspected periodically and kept to the required standards. During the year the new Underground two men each lost the sight of Government Magazine at Dilston was completed an eye, one from a scat while spwlling, and the and the first explosives stored there from a other from a spanner thrown from the chuck of shipment landed on the 26th October, 1961. a diamond drilll. One man had a leg broken and Shifting equipment and explosives from the another a thumb, by being struck with a bar. Launceston Magazine was in progress at the A man had his arm br,oken while re-railing a cloOse of the year. A number of new magazines bogger and another [ost portions of two fingers were construoted in the district during the year when he slipped and grasped a scraper rope. ~l1d were found, before licensing, to conform to Nine of the minor accidents and OTIe serious the plans ,approved. A number of liquid fuel one involved injuries to hands, Or fingers, and storages were also appr,oved and Jicem;ed. seven minor ones were strains. No accidents Nine shipments of explosives and eight ship were due to breaches ,of the Rules, nor to neglig ments of inflammable liquid were landed under ence on the part of the employers, or other the supervision of Inspedor Bonham. employees. HEALTH AND SAFETY Inspector J. B. BRAITHWAITE, B.C.E., B.M.E.,M.Aus.I.M.M., A.M.I.E. Aust., All mines and works in the area were visited regularly with particular reference to safety and Queenstown, reports:- hygiene. Dust sampling was carried out both PROSPECTING underground and in crushing plants to ensure A departmental diamond drill commenced that the Rules regarding ventilation and dust operating in the Dundas district in February. suppression were being carried out. Two holes were drilled on anomalies between the Grand Prize and the Razorback and one to inter AID TO MINING sect the possible extension of the Grand Prize Financial assistance to three parties mining tin Lode. The drill then moved to the Razorback ore was continued. 1962. (No. 18.) 41 EXPLOSIVES AND INFLAMMABLE AID TO MINING LIQUIDS Aid in one instance Statement of R-eceipts and Payments of the Ringttroom (1, and Cascade (Water) Suspense Account fOT the Year Ended 31st De cS1nJer , 1961. Receipts. ;£ s. d. Payments. £ s. d. Revenue from sale of water from Ring~ Ringarooma Race arooma Race W,a'ges-Caretakers 886 7 10 Town supplies 357 0 0 Wages-Maintenance . 131 2 8 Mining purposes 235 18 0 Interest on capital cost of Ringarooma Mi scellaneous ... . . 84 0 0 and eascade Water System . 429 2 4 Supervision 180 0 0 Total revenue 676 18 0 Rent of private land . 31 18 0 Balance (Loss) 1,086 7 6 Stores for maintenance . 22 15 4 Transport expenses . 18 18 0 P.ay-roll Tax . 29 18 1 Workers Compensation' Insurance 23 17 5 Te.lephor.'€ charges 12 ,5 10 £1,766 5 6 £1,766, 5 6 REPORT OF THE MOUNT CAMERON WATER RACE BOARD FOR THE YEAR ENDED 31st DECEMBER, 1961 SIR, operational ,loss of £100 for the first six months of ~he year by the two principal users of water. We have the honour to submit the Il'eport of The Board des·ires to record its appreciation of the Mt. Cameron Water Race Board for the year the gestull'e of these two users. ended 31st December, 1961. Operationa.I expenditure was £2773 as com Production of tin ,oxid" from water suppUed pared with £2793 for 1960. The Race system was 40.483 tons as compared with 40.657 tons has been maintained in good order and although for 1960. Water supplied under both the RoYaJlty there was a consideraible decline in rainfall, Scale a nd the F ixed or Oash Scale of charges supplies of w",ter to users were not reduced. was greater than in 1960 by 327 sluiceheads although overall production of tin concentrates The Board is hopeful that contracts for water was stable. This 'resulted from :the treatment of will continue on the present scale and on this lower grade gr'ound which it was possible to basis the Race system should function without mine profitably because of the impr,oved pr,ice of financial loss. tin payable during the greater part of the year. The rUlling price payable ,to producers by the It is desired to record appreciation of the Ore Buyer ranged from an average of £590 per services of the Manager and Ohannel Keepers. ton for 70 910 concentrates during ,the fi,rst few months of the year ,to an average of £735 per We have the honour to be, Sir, ton ':llUring the remainder of the year. Your obedient servants, It is pleasing to r ecord a surplus of £168 of J. G. SYMONS, Chairman. revenue from the sale of water .over operating H. K. TURNER, Member. costs. This resulted from the increased collec H. C. LA WRY, Member. tions !irom water users during the last half of 1961 and to the voluntary contributions to the The Hon. the Minister for Mines. 1962. (No. 18.) 43 STATISTICS FOR THE YEAR ENDED 31st DECEMBER, 1961. Registe?'l3d Rainfall. Production Great Mu~sel Roe 35 inches 15 points Tin oxide produced-- Little Mussell Roe . 34 inches 50 points tons cwt. qrs. lbs. Water Se'rvices Royalty scale 14 1 Average number 1)£ claims supplied per week .. 3 Fixed scale 39 15 1 18 Greatest number swpplied in anyone week . 4 Sluiceheads supplied:- Tobal 40 9 2 18 Royalty Scale 142 Fixed Scale 2,390 Employment Average per week- Royadty scale 1 Fixed Scale 10 Total 2,532 Total 11 Statement of Receipts and Payments of the Mt. Cameron Wate1' Race j3.,(Sl) enCe Account for the Year Entkd 31st Decembe1', 1961. Receipts. £ s. d. Sale of water Salaries and wages ... 2,556 13 0 £ s. d. £ s. d. Pay-roll Tax .. 63 18 5 Fixed scale 2,620 0 0 Insurance . 58 10 9 RoyaLty soole 97 12 7 Car allowance-Manager . "'-"" 'J:; 2 Domestic use. 94 10 0 Tools and general requisites ...... 22 1~ 2,812 2 7 Electrical work-Manager's residence 16 0 0 Hire of 'Pipes 30 0 0 Contribution from users 99 0 0 Total 2,773 10 0 Balance- profit . 167 12 7 £2,941 2 7 £2,941 2 7 L. G. SHEA, Government Printer, Tasmania.