DOCSLIB.ORG

Simpson the Mineralogy.Pdf

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Simpson the Mineralogy.Pdf MINERAIOGY 0F POI.ËUCIIE AND BERTL FRCI,Í fi{E ÎANCO PEGMATIIE AT BERNIC IAffi, }ÍANITOBA A Thesis Subnttted to .tthe Faculty of &aduate Studies Universlty of Þfanitoba In Partial frrlfill¡ent of the Requirenents for the Degree Master of SeLence by Frederick Simpson L97b THE t'4INERALOGY OF PNLLUCITE AND BERYL FR.OM THE TANCO PEGI,IATITT AT BERNIC LAKE, MANiTOBA b-v Frederick Simpson' A dissertation submitted to the Faculty of Graduate Studies of the University of Manitoba in partial fulfill¡nent of the requirements of the degree of ¡4ASTER OF SCIENCE @ t974 Pern¡ission has been grantctl to the LTBRARy oF Tfru uNlvDR- slrY oF MANTToBA t. tcntr or sert copies of trris dissertrtion, to the NATtoNAL LTtsRAIì,y oF- cANADA to'ricrorirm this dissertation and to lend or sell copies of the filnr, and uNrvËRstry MlcRoFrtMS to publish an abstract of trris dissertation. The author reserves other publicati,' rights, and neithcr ttre dissertation nor extensive cxtracts f'rum it rnay be printed or t¡ttrer- wise reproduced without ttrc uurilror's written ¡re*rrissiorr -ti- ry CHAPlEB PA@ ABSTBACT vli AEKIT{IEDEEI{ENTS in Ï. IN1RODTICÎICAI (a) Ggncral fntroduction . .. .. .... .... .. .. .. t (u) IÍtstory ....................... .............. e..... ? (e) Gþncral Gcologr . .... .... .. .... o. .. .. .... .. ... I (a) Frevlous lrlork e... .. .... ...... ... u (e) Prcsgnt Study ............................. e....... L5 (r) Erperinental Mcthodg . ...... .... ... ... L5 Befractive Lndcor .. .. ... ... ...... ..... L5 lample eeparation . .. .. .... .... .. .. L6 ÐCne5.ty ..... ò e oo o.......... o.oo............... L6 UnLü cgll di-ngnsions . .. o. ... o......... .. ..... t7 Chenistly . .............. .......... o.. ..... .. o n Thin geetion9 ........ ) .. .. ..... ....... .. .. 18 l-ray diffractlon of aXteration products ...... 18 IT. POIJIrcITE (a) Introductlon ....... ..... .... e .... ,.. ........ .... L9 (u) CeneraL Study d @4 e s Fhyslcal, and optlcal propcrtíeg ' ............... 2L PartlaL chc¡ntcal analysls- . .... .... .. o. .. ... 27 (c) hrt t Müieralogical Study ...... .. .... ............. 29 Ðeneity and rgfþactlvg index .......... ... ).. o. 29 Unft egll. di.ngrælons .. ..... ......,. .. ......... 32 Dlscrepaneles ln the full chcmical analyscs ... 32 (0) sccondary cegign-analcines ................ )....... 32 (g) ALtæation Productg ...... ................ ... .. 35 III. BERTT (a) Inürodr¡ctlon ...................................... 37 (u) Genera!, Study Plyoical and optical, propertiee ...,. .......... 37 Partlal chcntcaL ånalygis- . ............. ., .,. .. 46 (c) Fux.t lftngralogical study . ......... ... ... ...... 5L Denclty and rcfÞactLvc lndax ....... ,. ..... a. 5L Urd.t cgll dinensLong . e ...... o............ .. o.. 53 t\¡1,1 chentcal analysis . .... ...... ... ..... ... .. 53 (A) Scconda¡T Ceglan BeryLs ................. o......... 60 rV. PETAOTPGICAI CONCIT'SIO{S (a) PoX.luctte a a a a a aaa aa a a a a a a.a a o a a a aaaaaaa a a a a a a a a a a a 64 -lii- CHAP1ER PACE (u) SgcondarT Ceslan AnaLei.ug o . .. .. .. ... .......... 65 (c) Beryl .... Ò a...... a....... e......... a aa a a. a. a aa..aa.. 65 (a) Secondary Ggstan Bgryl . .. ... .... ... .. o .. 66 V. MONOITTC COI{SIDENATIONS (a ) Pollucltg . .. .. 67 (U) Beryl ............................................... 68 nErmElpEs 69 -iv- TAru PA@ I. PhyslcaL and Oryetatlographieat Oharacteristics of FoX,lucite .......................... .................. 2 rr. Physical and Ctystatlographlcal Characterlstico of Beryl ..... a...... a... a.............. r.. a.............. 2 IIï. Rcfþactive IndLces and Footage in Feet of PoLLucite Sanple8 ......... ).....Ç... o............... ò o o o o....... 20 fV. Honogencity ?est on FolX-ucltc by Befractive Index ..... 2j V. Partfal Chenr cal AnaþcJ.a for PolLucite . .... .. .... 28 vI. t\rlt chgùnical Analysås for poLt-ucLte .............. .... 30 VfI. Chentaal Oonpoeition and PhyefcaL Pr.orperties of 0 gsian AnaLci.nc ........ .. .. .. ............ .. 33 VIII. Rcfraetlve Indiees for Be,r1y!- Saryles .................. 38 ï¡(. Partlal. ChemÍ¡cal Anal,yoes andr.¡,' for Berl¡l- Saryles ..... w J(. FulL GhenlcaL Anaþses for Berryl fÞon the Taneo Fegmatlte and Oùhgr Pcgmat,ltes ........................ 49 XI. GaLeulatlon of Oatl,on 0ontents of BerSrX. BaEed on 36 Qrygeng per Untt Ccll .............................. 54 XI[. OaLculatl.on of Cation Contenüs Bascd on Sl ............ 57 NfïI. Unl-t Cell Oontent and Site PopuLqtlon of lanco Ber'¡rl-s .. 58 XfV. Correätioar of Cation Gontent for Beryl- #3 tor Quartz ConùamlnatLon . 59 Xlf. FhysicaL Propcutlcg of Cegian Berfl. ...........o....... 62 IJST OF FTGT'RF FTGTTRE PAS 1. ProJection on (OOt) of thc ah¡minosil-:lcaùe ftanøwork and cg and tltO positions in pox.tuelte ................... 3 2. ProJectlon on (OOl) of the Cs aüons and H20 nolecu,[ee of polluclte shorring forrr eglX.s . .. .......... .. .. ..... 5 3. ProJection on (OOX.) of the Na atons in pollucite ........ 5 4. Structt¡¡lg of beryX. ...... ... .. ..... )........ .. 6 5. CreologleaX nap of the Bird lake - Bernlc trake - tfinr'Épeg River Area ... ... .. .. ..... ... ......... .. ... I 6a. Ptan of ùhe Tanco mine shorrl-ng thc poof.tion of Cro8S-Section A-A r . .. r . x0 b. A !û-S (l-lt) gection of the Tanco pegmqtLte ...........e. 11 7. Plan of ühe Tanco nlne chorring the eastern poll-ucitc n¡lp body ...... a... a... a. a o...... o.. a a. a. a....... ..... a a a a a.. pocket 8. hofl-lca of R vB. depth for polLuoite saryX.ee eollectcd fþon drill- co¡re¡ V39, BLz, ItI5r'and 834 fron the easüern poll.ucite bory and corês U and C fron the mstcDn igoLsted pods of polX.ucite . ... .. ... ... 22 9. Illstogran shorfng the variatLon of n in 135 poLLueitc sanpl,eo .. ... ......... .. .. .. ... o ...... .. ... o . 24 10. Itldlght ¡leroenüagc of 0eo0 vs. E for poX.lucite fron thg Tanco pegnatfte , ..7........ ........ ... ... ... ....... 26 11. Deneity yg. ! in Èhc analclne-poLluclte aeries .......... 3L 12. Paragesretf.o sequanccg of secondary nf-nerals ln ff.vo hydrothcmal asscnbLageo fron the upper lnte¡nedlate zonc (5) of ühe Tanco pegnqtltc )............r........... 34 13. The Tanco nf.ne chorlng the locatio4 of beryl saryler naP collected rrnderground fbon zone (6) (east) .............. pocket l4a. Hf.stogran ehoring the varlatl-on of ,^.r !n 43 ber-yl sanplea fÞom zone (4), zone (z) (pt¡*), zone (2) (eray), and zong (X.) . .. .... o...... .. .. ....... .... ...... .. ..... 41 ì b. Histogran shoving the varlation of r¡,rln 81 beryl sarylee ftom zoae (6) (east), sone (6) (ucst) ana zgng (9) ....e.............o............................. l+L -\n - FIq'RE PA6E C. llistogran of the nrünber of sanplee vo.l-¡J for al.L the 120 bcryL sappLes coLl-ceted fron thc Tanco pegmatlte ..... o... ... o. ..... .......... a. ........ l+2 L5,.ree,ig. Sketchco of bcryl crystals studled for zonlng shorvlng thc changc of r-r"' through the cryetal over A mQagEfGd digüanCe ..... ..... .. .... ...... ....... 4l+ t6. Refractlvc lndq (w) vs. SRAO for berXrl ............ 46 yl. DensLty v!t. t for beryl . ..... ........ .. ..... .. o.. o 52 18. Denaf.ty vs. 8q0 fsr the threc beryl sanpleg chctntcaXly analyged in full . .. ...... .. .... ..... 61 -vti- +ry PoX,Lucite and beryl are two of the cconomicatly anO petro- logically Ínportant nineraLs ln the lanco pegoat'it,c, Bernic lake, Manitobq. One hundred and thirüy sfx polluciùe sanples were coLX.ected fron the eastern poLlucite body and the Lsolated pods of pol.lucite 1n ühe western portLon of the pegnatite. The refractive fndex (gr) uaa measured on aLL sanpLes. SanpX.es were scLected for partial or ftrLL chentcal analysis on the baels of g and location. three sanpl-es uero chemf.cal,þ analysed in fuLl- and theLr density and untt cell denet-rsions were deterntned. lhe polluelte from the lanco peg- natitc uas found to fit the previously establlshed positlve correlatLons beüwecn g, dcnslty and rÊ.1 CsAO. Iü was noted that the sanp!.es from the western isolsted pods of poLlueite had, in general¡ a highen g than those fron the eastern pollucite body indicating they are richer ln Cor0. Alteration products of pollucite occur as thln velns and spherlcaL nassec, and aonsist of spodunene, nica and clay nineraLs. Ona hrrndred and thlrteen beryl saryLes were collected from thc wall zone, lower internedíate uone, ccntral inüernedlate sone and ühe Lepidolite zonc of the pegmatfto. The refþactive index (u,¡) of eaah sample nac measured, and on the basis of rr¡ and locatlon eanples were gelected for fuX.l or partial chenlcal anal¡rsis. DeneLtles and unlt aeLl dinensions were moqaured for the ühree oaryLes vhlch uere ehemicaLly analyaed in fulX.. Beryls fron the lanco pcgmatite appoar to ftt the esüablished positlve correLations between density and ã R 0. Zordng in the beryl crystals ruas checkcd by syetcnatically meqcuring rrr from the center to the outcrmost edge of thc cr'¡rsüal. '-''-.-.-.'....-. - ïLIJ - In nany caaos the crystalc were found to be iratensel¡r zoned. Zoning of bcryL with respect to znzo and r^.r was ax.so noted in the pcgnqtlte and lt appeqrs, ln general, that the aR20 q¡{ ur increaae tonards the ccnter of thc peBmatite. -j¡c- ACKNCffI..EÐGÐ.ÍENTS The auühor is very gratefi¡l to Dr. P. Ce¡n\y, Aasoclate Profcssor of lrflncnaXogy, aü the Unl-verslty of l{ani.toba for suggesting thla proJect and contl.nued guidance throughout the rescareh. The author ls also gratefrrl to Dr. R. B. Ferguoon, Professor of llllnenalogyt Univereity of Manitoba and lüQ. B. Bannatyne of, the lfanitoba lfinee Branch .for rcadlng the
Load more

Recommended publications
  • A Review of Rare-Element (Li-Cs-Ta) Pegmatite Exploration Techniques for the Superior Province, Canada, and Large Worldwide Tantalum Deposits
    Exploration and Mining Geology, Vol. 14, Nos. 1-4, pp. 1-30, 2005 © 2006 Canadian Institute of Mining, Metallurgy and Petroleum. All rights reserved. Printed in Canada. 0964-1823/00 $17.00 + .00 A Review of Rare-Element (Li-Cs-Ta) Pegmatite Exploration Techniques for the Superior Province, Canada, and Large Worldwide Tantalum Deposits JULIE B. SELWAY, FREDERICK W. BREAKS Precambrian Geoscience Section, Ontario Geological Survey 933 Ramsey Lake Road, Sudbury, ON P3E 6B5 ANDREW G. TINDLE Department of Earch Sciences, Open University Milton Keynes, Buckinghamshire, UK MK7 6AA (Received February 16, 2004; accepted September 20, 2004) Abstract — Rare-element pegmatites may host several economic commodities, such as tantalum (Ta- oxide minerals), tin (cassiterite), lithium (ceramic-grade spodumene and petalite), and cesium (pollucite). Key geological features that are common to pegmatites in the Superior province of Ontario and Manitoba, Canada, and in other large tantalum deposits worldwide, can be used in exploration. An exploration project for rare-element pegmatites should begin with an examination of a regional geology map. Rare-element pegmatites occur along large regional-scale faults in greenschist and amphibolite facies metamorphic terranes. They are typically hosted by mafic metavolcanic or metasedimentary rocks, and are located near peraluminous granite plutons (A/CNK > 1.0). Once a peraluminous granite pluton has been identified, then the next step is to determine if the pluton is barren or fertile. Fertile granites have elevated rare element contents, Mg/Li ratio < 10, and Nb/Ta ratio < 8. They commonly contain blocky K-feldspar and green muscovite. Key fractionation indicators can be plotted on a map of the fertile granite pluton to determine the fractionation direction: presence of tourmaline, beryl, and ferrocolumbite; Mn content in garnet; Rb content in bulk K-feldspar; and Mg/Li and Nb/Ta ratios in bulk granite samples.
    [Show full text]
  • Issue 188, September 2020
    Newsletter for the Association of Applied Geochemists EXPLORE www.appliedgeochemists.org NUMBER 188 SEPTEMBER 2020 Cesium Deposits David Trueman1, Bruce Downing2, and Tom Richards3 1 3560 Bunting Avenue, Richmond, BC, Canada V7E 5W1 2 20200 Grade Crescent, Langley, BC, Canada V3A 4J6 3 1747 2nd Avenue NW, Calgary, AB, Canada T2N 0G2 Introduction Cesium or caesium? Cesium is the accepted spelling of element 55 by the American Ceramic Society (ACS). Caesium is the International Union of Pure and Applied Chemistry’s (IUPAC) preferred spelling. Both are used interchangeably. Its chemical symbol is Cs. Cesium was discovered by Bunsen and Kirchhoff in 1860 through emission spectroscopy and in etymology finds its name in the Latin “Caesius” for the sky-blue lines in its emission spectrum. It is a little known element, the bulk of which is used in oil and gas well servicing in the form of cesium formate. It is also used as catalysts in plastics, petroleum refining to remove sulphur, experimental Magneto Hydro Dynamic (MHD) power generation, in cesium clocks for telecommunications and GPS navigation, specialty glasses, opto-electronics, ion-propulsion motors, high-density alkaline batteries, and solar cells where it extends the electromagnetic spectrum. As a dense medium, cesium formate is also used in metallurgical test work, to separate DNA and, because of its density, 133 it has a potential use in coal cleaning (Tuck 2020; Pickup et al. 2020). Cesium has one stable isotope, Cs whereas 137 /55 Cs or radiocesium is an artificially produced isotope used in cancer treatment. It has a potential application in the sequestration nuclear waste (Cerný 1978; Yoshinobu et al.
    [Show full text]
  • Cascadero Investor Presentation March 2 2017
    (TSXV: CCD) CASCADERO INVESTOR PRESENTATION MARCH 2nd 2017 TARON: DISCOVERY TO DEVELOPMENT VIEW OF TARON OUTCROP LOOKING SOUTH EAST Cascadero Copper is a TSX Venture Exchange listed explorer and resource development Company that trades under the ticker symbol “CCD”. The Company is managed by Bill McWilliam and Dave Trueman. In 2004, a Cascadero prospector Ron Bilquist took rock samples from a large out crop 1 | P a g e in NW Argentina. The assays returned highly anomalous values of Cesium and several other elements. So began the journey, to determine if a Cesium resource was present and large enough to develop into a bulk mineable open pit mine. The first question was can the Cesium mineral be extracted from the Taron rocks with a simple metallurgical approach? Between 2004 and 2009, Cascadero completed a development program of regional sampling, excavator trenching, initial metallurgical tests and diamond drilling. Initial metallurgy was done by SGS Lakeview Ontario who established the fact that that the run-of-mine Taron mineralized material could be acid leached with good recovery and kinetics. The regional sampling program indicated that the Taron showing may represent the largest accumulation of Cesium known to exist. The trenching program succeeded in establishing that the Cesium mineralization was present over an area of approximately >50 sq kilometres and appeared to be laterally continuous between trenches. The Company then in drilled seven core holes over a 1.1 kilometre section and the mineralization extended to depth in each drill hole. At this point the Company believed they had a major mineral discovery in place.
    [Show full text]
  • Specialty Metals in Canada
    Specialty Metals In Canada G.J. Simandl, E.A. Prussin, and N. Brown British Columbia Geological Survey Open File 2012-7 Ministry of Energy and Mines Recommended citation: Simandl, G.J., Prussin, E.A., and Brown, N., 2012. Specialty Metals In Canada. British Columbia Geological Survey Open File 2012-7. Cover Photo: ++ Eudialyte [Na4(Ca,Ce)2(Fe ,Mn,Y)ZrSi8O22(OH,Cl)2], a rare earth element-bearing mineral (pink). Other major constituents are feld- spar (white and gray), sodic amphibole (dark green) and mosandrite and/or agrellite (graysh-buff). Sample from the Specimen Pit (Trench 1 of the Matamec Explorations Inc.), Kipawa, Quebec. Canadian quarter for scale. British Columbia Ministry of Energy and Mines Specialty Metals in Canada Simandl, G. J.1,2, Prussin, E.A.1 and Brown, N.1 1British Columbia Geological Survey, Ministry of Energy and Mines, Victoria, B.C. 2School of Earth and Ocean Sciences, University of Victoria, Victoria, B.C. Abstract Specialty metals (SMs) are critical for the development of green technologies, essential raw materials for high technology industries, and deemed strategic for national security by the USA and several European countries. More than one thousand Ta, Nb, Zr, Hf, Li, REE and Be occurrences are known in Canada. Only two Canadian SM deposits are being mined, the ferroniobium producing St. Honoré carbonatite (Niobec) and the Cs- and Ta- producing Bernic Lake deposit (Tanco Mine). Several Ta, Nb, REE and Li prospects are reaching pre-feasibility or feasibility stages. Examples are: Crevier Township, Nb-Ta (QC); Aley Carbonatite, Nb (BC); Blue River, Ta-Nb (BC); Nechalacho, REE (NT); Strange Lake, REE (QC); Kipawa, REE (QC); LaCorne Township, Li (QC); and Wabouchi (also known as Lac des Montagnes) Li (QC).
    [Show full text]
  • INTERNATIONAL LITHIUM CORP. Daily ILC.V 07/11/2016 - 05/11/2018 (EST) Line, ILC.V, Trade Price(Last), 05/11/2018, 0.075, N/A, N/A Price CAD
    6 November 2018 Mining INTERNATIONAL LITHIUM CORP. Daily ILC.V 07/11/2016 - 05/11/2018 (EST) Line, ILC.V, Trade Price(Last), 05/11/2018, 0.075, N/A, N/A Price CAD 0.21 0.2 0.19 0.18 0.17 Canada restructured, key announcements pending 0.16 0.15 0.14 0.13 0.12 ILC’s turnaround is continuing under stewardship of the new Chairman/CEO. 0.11 0.1 0.09 Restructuring the Canadian assets shifts the focus towards the Raleigh Lake 0.08 0.075 0.07 deposit, which has geological similarities with a large, existing mine. For now, the Auto D J F M A M J J A S O N D J F M A M J J A S O N Q4 16 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 key driver of ILC’s share price will be Mariana, its core lithium project in Argentina. Source: Eikon Thomson Reuters Financial markets remain ambivalent towards explosive lithium demand growth and the related equities, believing that demand might be outpaced by supply. In Market data stark contrast, corporates like auto suppliers, battery makers and ILC’s partner, the EPIC/TKR ILC Chinese lithium major, Ganfeng, are accelerating their efforts to secure supply. Price (C$) 0.07 12m High (C$) 0.23 ► Canadian upside: ILC has regained 100% ownership of Raleigh Lake, adding 12m Low (C$) 0.065 additional acreage next to the deposit. New exploration work is imminent, with Shares (m) 148.9 the company more upbeat after identifying similarities between early geological Mkt Cap (C$m) 10.4 EV (C$m) 15.0 assessment of Raleigh Lake and Cabot Corp’s Tanco mine.
    [Show full text]
  • NI 43-101 Technical Report Preliminary Feasibility Study for the PAK Lithium Project Red Lake Mining District, Ontario, Canada
    NI 43-101 Technical Report Preliminary Feasibility Study For The PAK Lithium Project Red Lake Mining District, Ontario, Canada Report prepared for Report prepared by Report # 16622-2018 Effective Date: March 2, 2018 Report Date: April 16, 2018 Prepared by: Kurt Boyko, P.Eng., Johnny Canosa, P.Eng. Steve Wilson, P.Eng. Roy Levesque, P.Eng. Todd McCracken, P.Geo. TABLE OF CONTENTS REPORT PREPARED FOR .......................................................................................................................................... I REPORT PREPARED BY ............................................................................................................................................ I REPORT # 16622-2018 ............................................................................................................................................. I LIST OF FIGURES .................................................................................................................................................. VIII LIST OF TABLES ...................................................................................................................................................... X GLOSSARY OF TERMS ........................................................................................................................................... XII 1. EXECUTIVE SUMMARY ................................................................................................................................... 1 1.1 Mineral Resource Estimate .........................................................................................................................
    [Show full text]
  • Exploration Techniques for Rare-Element Pegmatite in the Bird River Greenstone Belt, Southeastern Manitoba
    Ore Deposits and Exploration Technology ________________________________________________________________________________________ Paper 55 Exploration Techniques for Rare-Element Pegmatite in the Bird River Greenstone Belt, Southeastern Manitoba Galeschuk, C. [1], Vanstone, P. [2] _________________________ 1. Mustang Minerals Corporation 2. Tantalum Mining Corporation of Canada Limited ABSTRACT The exploration for rare-element pegmatite bodies requires a combined geological and geochemical approach. A variety of techniques are available. The exploration efforts of the Tantalum Mining Corporation of Canada in southeastern Manitoba has shown the value of using exploration geochemistry. A combination of rock lithogeo-chemistry and selective leach soil geochemistry has been successfully tested and used to find buried rare-element pegmatites. subprovince of the western Superior Province (Černý et al. 1981, INTRODUCTION Card and Ciesielski, 1986 and Figure 2) that is underlain by the metavolcanic-metasedimentary Bernic Lake Formation The Tantalum Mining Corporation of Canada Limited(Tanco) is (Trueman, 1980). The Bernic Lake pegmatite group consists of a a private company wholly owned by Cabot Corporation of number of subhorizontal, lithium-cesium-tantalum (LCT)-family Boston, Massachusetts and operated by the Cabot Supermetals pegmatites of which the two largest known members are the division. Tanco has been mining the highly fractionated, rare- Tanco and Dibs pegmatites (Figure 3). Both of these pegmatites are hosted by late-stage, subvolcanic, metagabbro intrusions. element Tanco pegmatite at Bernic Lake, Manitoba since 1969, and produces tantalum, pollucite and spodumene mineral concentrates. Currently, Tanco is North America.s only producer of these products. Reserves at the end of 1992 stood at 1.09 million tonnes grading 0.12% Ta2O5, 3.5 million tonnes at 2.71% Li2O (Giancola, 2002).
    [Show full text]
  • Structural Geology of the Bernic Lake Area, Bird River Greenstone Belt, Southeastern Manitoba (NTS 52L6): Implications for Rare Element Pegmatite Emplacement by P.D
    GS-18 Structural geology of the Bernic Lake area, Bird River greenstone belt, southeastern Manitoba (NTS 52L6): implications for rare element pegmatite emplacement by P.D. Kremer1 and S. Lin1 Kremer, P.D. and Lin, S. 2006: Structural geology of the Bernic Lake area, Bird River greenstone belt, southeastern Manitoba (NTS 52L6): implications for rare element pegmatite emplacement; in Report of Activities 2006, Manitoba Science, Technology, Energy and Mines, Manitoba Geological Survey, p. 206–213. Summary belt into six lithostratigraphic In June of 2005, a two-year M.Sc. project was formations, termed the Eaglenest initiated to examine the structural geology of the Lake Formation, Lamprey Falls Formation, Peterson Bernic Lake Formation and provide constraints on the Creek Formation, Bernic Lake Formation, Flanders Lake emplacement of rare element pegmatite bodies that occur Formation and Booster Lake Formation. Detailed descrip- within it. The study is being completed at the University tions of each formation can be found in Trueman (1980), of Waterloo in co-operation with the Manitoba Geological Cerny et al. (1981), Duguet et al. (GS-16, this volume) Survey and the Tantalum Mining Corporation of Canada and Gilbert (GS-17, this volume). Ltd. (Tanco). Field components of the study included The Bird River greenstone belt is also host, in regional geological mapping (1:10 000 scale) of the part, to the Cat Lake and Winnipeg River pegmatite Bernic Lake Formation around the Tanco mine, detailed districts. Within the Winnipeg River district, the geological mapping of exposed pegmatite occurrences pegmatites have been separated into eight groups of within the Bernic Lake pegmatite group, examination of spatially, mineralogically and geochemically related both production and exploration diamond-drill core from bodies.
    [Show full text]
  • In Partial Fulfil]Ment of the Requirements for the Degree of Master of Science
    CRYSTALLOGRÄ,PHY AND CHEMISTRY OF Li-Rb-Cs BEARTNG MTCAS FROM THE TANCO (CHEMALLOY) PEGMATITE, BERNIC LAKE¡ MANITOBA A Thesis Presented to The Faculty of Graduate Studies TTn i r¡crs ì l-r¡ Of ManitOba In Partial Fulfil]ment of the Requirements for the Degree of Master of Science by Romano Rinaldi October, i-970 ìì'iì-** 'j,, r t' i¡ ,.;;ì ¡ TABLE OF CONTENTS Þ.arr o LIST OF vi ABSTRACT vii CHAPTER T- INTRODUCTION General Geology and .l4ineralogy of the Tanco Pegmatite, Bernic Lake, nr^-.: !^1^^ I".I.CTJ.II L(JIJCT I B. The Present Stud.y 3 Previous !üork on Lithium-micas = D" Experimental Work Carried Out in the Present Study ñ Acknowledgements CHAPTER II DESCRIPTION OF TilE SPECÏMENS A. Specimens from the Tanco Mine, Bernic Lake .co.b Specimens from Other than Bernic Lake 11 CHAPTER TIÏ X-RAY DIFFRACTION STUDY A Powder Photographs" 13 P. Diffractograms L4 l. Structure Types 16 2" CelI Dimensions I9 Single Crystal Precession Investi- (l-^I.i^* Ct LJ\JJI ¿¿ I. Sample Preparation and Optic Orientation.. 22 2" Precession Photographs and Their Interpretation 24 l- l- l- Paqe CHAPTER TV CHEMISTRY A. l4ethods 3 3 B" Result,s 34 CHAPTER V OPTICS 37 CHAPTER VI DISCUSSION AND COMPARISON OF TEIE RESULTS A. Chemical Composition and Structure Type 43 U. The CelI Dimensions and the Chemical Composition with Special Reference to the Li^O,z¿¿ Rb^O and Cs.O Contents" " 46 C" The Variation of the Refractive fndices in Relation to the Contents of LirO, Rb^O¿¿ and Cs^o.." .""""""" 57 ]-V LIST OF TABLES Table Page 1" X-ray powder diffractometer data 18 2" Cell- d.imensions from the powder diffractograms 20 3 " Cell parameters obtained from precession photographs compared with the ones obtained with 'the powder method.
    [Show full text]
  • Leaders in Green Metal Exploration & Development
    LEADERS IN GREEN METAL EXPLORATION & DEVELOPMENT Lithium Projects Presentation Q2 2021 Pd Pt Li DISCLAIMERS SAFE HARBOUR STATEMENT FORWARD-LOOKING STATEMENTS This report includes forward-looking statements covered by the Private Certain information presented, including discussions of future plans and Securities Litigation Reform Act of 1995. Because such statements deal operations, contains forward-looking statements involving substantial with future events, they are subject to various risks and uncertainties and known and unknown risks and uncertainties. These forward-looking actual results for fiscal year 2010 and beyond could differ materially from statements are subject to risk and uncertainty, many of which are beyond the Company’s current expectations. Forward-looking statements are control of company management. These may include, but are not limited identified by words such as "anticipates," "projects," "expects," "plans," to, the influence of general economic conditions, industry conditions, "intends," "believes," "estimates," "targets," and other similar expressions fluctuations of commodity prices and foreign exchange rate conditions, that indicate trends and future events. prices, rates, environmental risk, industry competition, availability of qualified staff and management, stock market volatility, timely and cost- effective access to sufficient working capital or financing from internal and QUALIFIED PERSON STATEMENT external sources. Actual results, performance, or achievements may differ materially from those expressed or implied by these forward-looking The information in this presentation that relates to Exploration Results or statements Mineral Resources is based on information compiled, reviewed or prepared by Carey Galeschuk, P. Geo. Mr. Galeschuk is a Qualified Person, as defined by National Instrument 43-101, and has reviewed and approved the technical content of this presentation.
    [Show full text]
  • Cameron Et Al. (1949): Fracture-Fillings and Replacement Bodies
    Cameron et al. (1949): Fracture-Fillings and Replacement Bodies David London ([email protected]) October 20, 2020 Though Cameron et al. (1949) stressed the importance of zones as the principal structural units of pegmatites, they devoted considerable attention to fracture fillings and replacement bodies. Both features are cited as common in the pegmatite districts they studied. Like everything else about pegmatites, Cameron et al. (1949) noted that the distinctions among zones, fracture fillings, and replacement bodies are sometimes difficult to resolve. Fracture-fillings figured into their assessment of the role of replacement – meaning metasomatic recrystallization of pre- existing pegmatite – in the formation of the pegmatite zones. Fractures at some scale must exist to provide the conduits for the fluid that would be responsible for metasomatism. Metasomatism entails the removal, addition, or both of elemental constituents of a mineral or a mineral assemblage. These constituents must come from some place and go some place other than the locus of the replacement. They must, therefore, become soluble or locally insoluble in the fluid medium that is responsible for replacement. Following a lengthy assessment (Origin of Pegmatite Units, p. 97-107), Cameron et al. (1949) rejected metasomatic replacement as a means of generating the observed zones. This includes the rare-element enriched zones, which Landes (1933) deemed as replacements of common granitic pegmatite. In so rejecting a central role for metasomatism, Cameron et al. (1949) dismissed a hydrothermal origin for pegmatites, which was also a widely-held opinion dating from the 19th century. Fracture Fillings Cameron et al. (1949) opened the discussion of fracture fillings (pp.
    [Show full text]
  • Rare-Metal Exploration Potential of the Separation Lake Area: an Emerging Target for Bikita-Type Mineralization in the Superior Province of NW Ontario
    Ontario Geological Survey Open File Report 5966 Rare-Metal Exploration Potential of the Separation Lake Area: an Emerging Target for Bikita-Type Mineralization in the Superior Province of NW Ontario 1997 ONTARIO GEOLOGICAL SURVEY Open File Report 5966 Rare-Metal Exploration Potential of the Separation Lake Area: an Emerging Target for Bikita-Type Mineralization in the Superior Province of NW Ontario by F.W. Breaks and A.G. Tindle 1997 Parts of this publication may be quoted if credit is given. It is recommended that reference to this publication be made in the following form: Breaks, F.W. and Tindle, A.G. 1997. Rare-metal exploration potential of the Separation Lake area: an emerging target for Bikita-type mineralization in the Superior Province of Ontario; Ontario Geological Survey, Open File Report 5966, 27p. e Queen’s Printer for Ontario, 1997 e Queen’s Printer for Ontario, 1997. Open File Reports of the Ontario Geological Survey are available for viewing at the Mines Library and the Publication Sales office in Sudbury, at the Mines and Minerals Information Centre in Toronto, and at the regional Mines and Minerals office whose district includes the area covered by the report (see below). Copies can also be purchased at all of the locations listed below except the Mines Library. Although a particular report may not be in stock at locations other than the Publication Sales office in Sudbury, they can generally be obtained within 3 working days. All telephone, fax and mail orders should be directed to the Publication Sales office in Sudbury. Use of VISA or MasterCard ensures the fastest possible service.
    [Show full text]