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Glacial Map of Nw
TASMANI A DEPARTMENT OF MIN ES GEOLOGICAL SURV EY RECORD No.6 .. GLACIAL MAP OF N.W. - CEN TRAL TASMANIA by Edward Derbyshire Issued under the authority of The Honourable ERIC ELLIOTT REECE, M.H.A. , Minister for Mines for Tasmania ......... ,. •1968 REGISTERED WITH G . p.a. FOR TRANSMISSION BY POST A5 A 800K D. E . WIL.KIN SOS. Government Printer, Tasmania 2884. Pr~ '0.60 PREFACE In the published One Mile Geological Maps of the Mackintosh. Middlesex, Du Cane and 8t Clair Quadrangles the effects of Pleistocene glaciation have of necessity been only partially depicted in order that the solid geology may be more clearly indicated. However, through the work of many the region covered by these maps and the unpublished King Wi11 iam and Murchison Quadrangles is classic both throughout AustraHa and Overseas because of its modification by glaciation. It is, therefore. fitting that this report of the most recent work done in the region by geomorphology specialist, Mr. E. Derbyshire, be presented. J. G. SYMONS, Director of Mmes. 1- CONTENTS PAGE INTRODUCTION 11 GENERAL STR UCT UIIE AND MOIIPHOLOGY 12 GLACIAL MORPHOLOGY 13 Glacial Erosion ~3 Cirques 14 Nivation of Cirques 15 Discrete Glacial Cirques 15 Glacial Valley-head Cirques 16 Over-ridden Cirques 16 Rock Basin s and Glacial Trou~hs 17 Small Scale Erosional Effects 18 Glacial Depositional Landforms 18 GLACIAL SEDIMENTS 20 Glacial Till 20 Glacifluvial Deposits 30 Glacilacustrine Deposits 32 STIIATIGIIAPHY 35 REFERENCES 40 LIST OF FIGURES PAGE Fig. 1. Histogram showing orientation of the 265 cirques shown on the Glacial Map 14 Fig. -
LATE WISCONSIN GLACIATION of TASMANIA by Eric A
Papers and Proceedings of the Royal Society of Tasmania, Volume 130(2), 1996 33 LATE WISCONSIN GLACIATION OF TASMANIA by Eric A. Calhoun, David Hannan and Kevin Kiernan (with two tables, four text-figures and one plate) COLHOUN, E.A., HANNAN, D. & KIERNAN, K., 1996 (xi): Late Wisconsin glaciation of Tasmania. In Banks, M. R. & Brown, M.F. (Eds): CLIMATIC SUCCESSION AND GLACIAL HISTORY OF THE SOUTHERN HEMISPHERE OVER THE LAST FIVE MILLION YEARS. Pap. Proc. R. Soc. Tasm. 130(2): 33-45. https://doi.org/10.26749/rstpp.130.2.33 ISSN 0080-4703. Department of Geography, University of Newcastle, Callaghan, NSW, Australia 2308 (EAC); Department of Physical Sciences, University of Tasmania at Launceston, Tasmania, Australia 7250 (DH); Forest Practices Board ofTasmania, 30 Patrick Street, Hobart, Tasmania, Australia 7000 (KK). During the Late Wisconsin, icecap and outlet glacier systems developed on the West Coast Range and on the Central Plateau ofTasmania. Local cirque and valley glaciers occurred in many other mountain areas of southwestern Tasmania. Criteria are outlined that enable Late Wisconsin and older glacial landforms and deposits to be distinguished. Radiocarbon dates show Late Wisconsin ice developed after 26-25 ka BP, attained its maximum extent c. 19 ka BP, and disappeared from the highest cirques before 10 ka BP. Important Late Wisconsin age glacial landforms and deposits of the West Coast Range, north-central and south-central Tasmania are described. Late Wisconsin ice was less extensive than ice formed during middle and earlier Pleistocene glaciations. Late Wisconsin snowline altitudes, glaciological conditions and palaeodimatic conditions are outlined. Key Words: glaciation, Tasmania, Late Wisconsin, snowline altitude, palaeoclimate. -
Bushwalk Australia
Bushwalk Australia Staying Home Volume 40, April 2020 2 | BWA April 2020 Bushwalk Australia Magazine An electronic magazine for http://bushwalk. com Volume 40, April 2020 We acknowledge the Traditional Owners of this vast land which we explore. We pay our respects to their Elders, past and present, and thank them for their stewardship of this great south land. Watching nature from my couch Matt McClelland Editor Matt McClelland [email protected] Design manager Eva Gomišček [email protected] Sub-editor Stephen Lake [email protected] Please send any articles, suggestions or advertising enquires to Eva. BWA Advisory Panel North-north-west Mark Fowler Brian Eglinton We would love you to be part of the magazine, here is how to contribute - Writer's Guide. The copy deadline for the June 2020 edition is 30 April 2020. Warning Like all outdoor pursuits, the activities described in this publication may be dangerous. Undertaking them may result in loss, serious injury or death. The information in this publication is without any warranty on accuracy or completeness. There may be significant omissions and errors. People who are interested in walking in the areas concerned should make their own enquiries, More than one way and not rely fully on the information in this publication. 6 The publisher, editor, authors or any other to climb Mount Giles entity or person will not be held responsible for any loss, injury, claim or liability of any kind resulting from people using information in this publication. Please consider joining a walking club or undertaking formal training in other ways to Look at the Sun ensure you are well prepared for any activities you are planning. -
Geochemistry of Darwin Glass and Target Rocks from Darwin Crater, Tasmania, Australia
Meteoritics & Planetary Science 43, Nr 3, 479–496 (2008) AUTHOR’S Abstract available online at http://meteoritics.org PROOF Geochemistry of Darwin glass and target rocks from Darwin crater, Tasmania, Australia Kieren T. HOWARD School of Earth Sciences, University of Tasmania, Hobart, Tasmania 7000, Australia Present address: Impacts and Astromaterials Research Centre, Department of Mineralogy, The Natural History Museum, Cromwell Road, London SW7 5BD, UK Corresponding author. E-mail: [email protected] (Received 1 March 2007; revision accepted 25 July 2007) Abstract–Darwin glass formed about 800,000 years ago in western Tasmania, Australia. Target rocks at Darwin crater are quartzites and slates (Siluro-Devonian, Eldon Group). Analyses show 2 groups of glass, Average group 1 is composed of: SiO2 (85%), Al2O3 (7.3%), TiO2 (0.05%), FeO (2.2%), MgO (0.9%), and K2O (1.8%). Group 2 has lower average SiO2 (81.1%) and higher average Al2O3 (8.2%). Group 2 is enriched in FeO (+1.5%), MgO (+1.3%) and Ni, Co, and Cr. Average Ni (416 ppm), Co (31 ppm), and Cr (162 ppm) in group 2 are beyond the range of sedimentary rocks. Glass and target rocks have concordant REE patterns (La/Lu = 5.9–10; Eu/Eu* = 0.55–0.65) and overlapping trace element abundances. 87Sr/86Sr ratios for the glasses (0.80778–0.81605) fall in the range (0.76481–1.1212) defined by the rock samples. ε-Nd results range from −13.57 to −15.86. Nd model ages range from 1.2–1.9 Ga (CHUR) and the glasses (1.2–1.5 Ga) fall within the range defined by the target samples. -
OVERLAND TRACK TOUR GRADE: Well Defined and Wide Tracks on Easy to WORLD HERITAGE AREA Moderate Terrain, in Slightly Modified Natural Environments
FACTSHEET DURATION: 8 days OVERLAND TRACK TOUR GRADE: Well defined and wide tracks on easy to WORLD HERITAGE AREA moderate terrain, in slightly modified natural environments. You will require a modest level of OFF PEAK SEASON – MAY TO OCTOBER fitness. Recommended for beginners. The world renowned Overland Track is usually included in any list of the world’s great walks, and justifiably so. It showcases the highlights of Tasmania’s spectacular landforms and flora in a memorable 80km trek from Lake St Clair to Cradle Mountain. Discover glacial remnants of cirques, lakes and tarns; temperate rainforests of myrtle beech and sassafras, laurel and leatherwood; jagged mountain peaks of fluted dolerite columns (including Tasmania’s highest – Mt Ossa at 1617m); stark alpine moorlands and deep gorges and waterfalls. ITINERARY & TOUR DESCRIPTION Our tour starts at Lake St Clair, a through open eucalypt forest that Day 3: glacial lake 220m deep, 14km long, changes gradually to myrtle beech. Windy Ridge Hut to Kia Ora Hut and culminates at the dramatic Our campsite at Narcissus Hut is We make an early start for the short Cradle Mountain. This approach adjacent to the Narcissus River where but steep climb to the Du Cane Gap gives a different perspective to this you have the opportunity for a swim on the Du Cane Range. We catch our experience as the walk leads to ever to freshen up before dinner. breath here in the dense forest, and more dramatic alpine scenery as we then proceed to the day’s sidetrack proceed through temperate rainforest Day 2: highlights of Hartnett, Fergusson from our start at Lake St Clair to the Narcissus Hut to Windy Ridge Hut and D’Alton Falls in the spectacularly finish at Cradle Mountain. -
Papers and Proceedings of the Royal Society of Tasmania
114 THE HIGHLANDS OF LAKE ST. CLAIR. By Col. W. Y. Leuge, E.A., F.G.S. In the following paper an effort is made to describe tlie topographical features of Mounts King William and Olympus, and to touch upon the magnificent scenery whi6ti surrounds these grand highlands of western Tasmania. After the traveller crosses the Clarence Eiver, some ten miles from Marlborough and draws near Lake St. Clair, he emerges from the forest upon the button-rush plains on the north of Mount Charles, and first becomes aware of the altered character of the scenery awaiting him as he journeys towards the west. In addition to the bold mural outlines, characteristic of the greenstone districts of the island, and which are here also a marked feature in the landscape, peaked mountains rise up grandly here and there among the adjacent bluffs, and add a new and grand feature to the country. Thus, from the plains near Mount Charles, the peaks of Mount Byron and Mount Hugel come into view, and, mingling with the precipitous bluffs of Mount Olympus and King William, form a view not easily forgotten. The newly formed track, which it is to be hoped will a no distant date become the main road from Hobart to the West Coast, passes to the north of Mount Charles, a forest-clad tier with an altitude of about 3,300 feet, and on the north side of the flat ground over which the track passes is another range, whichis in reality the southern edge of the higher Lake plateau running westward till stopped by the gorge which contains Lake St. -
Hobart Derwent Bridge
LSC DH NF LSC LSC TW BO NN DONAGHYS HILL LOOKOUT NELSON FALLS NATURE TRAIL LAKE ST CLAIR THE WALL BOTHWELL Pause for a break on the road and take the Stretch your legs and make the short climb to Australia’s deepest lake was carved out by glaciers. It’s the end This large-scale artwork is lifetime’s work for self- Established in the 1820s by settler-graziers from Scotland easy walk to a lookout point over buttongrass see a rainforest cascade. point of the famous Overland Track, one of the world’s best multi- taught sculptor Greg Duncan, who is carving the stories (with some notable Welsh and Irish connections) this town plains to see a bend of the upper Franklin day walks. Spend an hour or so in the Lake St Clair Park Centre, of the high country in 100 panels of Huon pine, each has more than 50 heritage-listed buildings. It is the site River – on the skyline is the white quartzite where you’ll learn about the region’s amazing geology, fascinating three metres high and a metre wide. of Australia’s oldest golf course, on the historic property summit of Frenchmans Cap. Lake Burbury flora & fauna and rich human heritage. ‘Ratho’. ‘Nant’ is another of the town’s heritage properties TO THE WEST: explore wilderness, Lake St Clair and the source of acclaimed single-malt whisky. TO THE EAST: follow the Derwent Queenstown QU Nelson Falls discover wild history LH NF Nature Trail LSC down to a city by the sea THE WALL Bronte Park THE LYELL HIGHWAY WR Derwent Bridge TW Linking the West Coast with Hobart, the highway you’re on ST crosses the high country of the Central Plateau and runs Strahan through the Tasmanian Wilderness World Heritage Area. -
Department of Lands and Surveys: Report of the Surveyor-General and Secretary for Lands, 1899-1900
.{No. 41.} 19 0 0. PARLIAMENT OF TASMANIA. DEPARTMENT OF LANDS AND SURVEYS: REPORT OF THE SURVEYOR-GENERAL AND SECRETARY· . FOR LANDS, 1899-1900, \. Presented to both Houses of Parliament by His Excellency's Comurnnd._ Cost of pl'inting-,£34 lOs • ... ·_TASMANIA. REPORT OJI' 'lHE SURVEYOR-GENERAL AND SECRETARY FOR. LANDS POR 18 9 9--1·90 0. ftat:1mania: JOHN VAIL, GOV.ERNMENT PRINTER, HOBART (No. 44.) DEPARTMENT OF LANDS AND SURVEYS. Surveyor- General's Office, Hobart, 13th July, 1900. S1R, I HAVE the honour to furnish you with the following Report on the working of the Departmant of Lands and Surveys for the twelve months ending· 30th of June, 1900. REVENUE. The total territorial revenue collected by the Department of Lands and Surveys during the year ending 31st December, 1899, was £55,860, and the total sum collected during the year ending 31 st December, 1898, was £60,205. These figures show a shortage of £4345, which shortage i'! wholly due to the greater amount collected as Survey Fees during the former year, The estimate made by me in April, 1899, of the revenue to be collected for that year, was £56,400, thus showing a difference between the estimate and the actual receipts of only £540. The revenue collected during the six months ending the 30th Jnne, 1900, is £25,463, and the revenue collected during· the corresponding six months of 1899 was £25,425, showing a very slight difference of £38 iu favour of the later period. The separate headings from which the total receipts are made up are set forth in tppendix A to this Report, Return No. -
Ambling Adventures
Bushwalk Australia Ambling Adventures Volume 30, August 2018 2 | BWA August 2018 Bushwalk Australia Magazine An electronic magazine for http://bushwalk.com Volume 30, August 2018 We acknowledge the Traditional Owners of this vast land which we explore. We pay our respects to their Elders, past and present, and thank them for their stewardship of this great south land. Cover picture Long Plain, Kosciuszko NP by Matt McClelland Editor Matt McClelland [email protected] Design manager Eva Gomišček [email protected] Sub-editor Stephen Lake [email protected] Please send any articles, suggestions or advertising An Abel Challenge enquires to Eva. 6 Why not try to climb them all? We would love you to be part of the magazine, here is how to contribute - Writer's Guide. The copy deadline for the October 2018 edition is 31 August 2018. Triglav Lakes, Slovenia 10 A spectacular and stormy adventure Warning Like all outdoor pursuits, the activities described in this publication may be dangerous. Aussie FreezeFest One Undertaking them may result in 14 loss, serious injury or death. The Challenge Accepted information in this publication is without any warranty on accuracy or completeness. There may be significant omissions and errors. People who are interested in walking in the areas concerned should make their own enquiries, and not rely fully on the information in this publication. Photo Gallery The publisher, editor, authors 20 or any other entity or person will Inspiring images not be held responsible for any loss, injury, claim or liability of any kind resulting from people using information in this publication. -
Recent Wildfires in the Tasmanian Wilderness
Recent wildfires in the Tasmanian Wilderness The 2016 and 2019 Tasmanian wildfires burnt upwind of the most important Gondwanan refuges that remain - Mt Anne, Mt Bobs, Federation Peak and the Eastern Arthurs, New River headwaters, the Du Cane Range, the Walls of Jerusalem, Mt Read, the Tyndall Range, the lower Gordon River and the entire Tarkine rainforest (Huskisson River in the south and the Rapid River in the north). Aerial documentation of the south-eastern part of the Tasmanian Wilderness World Heritage Area (TWWHA) in March 2019 shows that fire damage to sensitive vegetation, although not wholly catastrophic, was extensive and locally extremely severe. For many areas the consequences will be permanent. A small selection of images from the flight is included below. Of even greater concern than the damage done, however, was that, with uncontrolled fire widespread through the landscape in 2016 and 2019, a brief period of severe or catastrophic fire conditions would have obliterated Tasmania’s most important stands of Gondwanic vegetation. In hot, dry, windy conditions rainforest does burn – the Southern Ranges, Mt Picton, the Raglan Range, Frenchmans Cap, Mt Murchison, Algonkian Mountain, the upper Jane River, the Meredith Range and many other places bear grim testament to that. The effects of climate change, combined with the absence of an effective means of immediately suppressing remote wildfires, pose a catastrophic threat to irreplaceable Gondwanan flora. This vegetation forms a major component of the Outstanding Universal Value of the TWWHA. Important tracts of these ancient life forms also occur outside the TWWHA. Climate change is creating unprecedented levels of dry-lightning strikes and resultant wildfires in the Tasmanian wilderness. -
OVERLAND TRACK TOUR GRADE: Well Defined and Wide Tracks on Easy to WORLD HERITAGE AREA Moderate Terrain, in Slightly Modified Natural Environments
FACTSHEET DURATION: 6 days OVERLAND TRACK TOUR GRADE: Well defined and wide tracks on easy to WORLD HERITAGE AREA moderate terrain, in slightly modified natural environments. You will require a modest level of fitness. Recommended for beginners. CRADLE MOUNTAIN – LAKE ST CLAIR NATIONAL PARK The world renowned Overland Track is usually included in any list of the world’s great walks, and justifiably so. It showcases the highlights of Tasmania’s spectacular landforms and flora in a memorable 80km trek from Lake St Clair to Cradle Mountain. Discover glacial remnants of cirques, lakes and tarns; temperate rainforests of myrtle beech and sassafras, laurel and leatherwood; jagged mountain peaks of fluted dolerite columns (including Tasmania’s highest – Mt Ossa at 1617m); stark alpine moorlands and deep gorges and waterfalls. In the peak season, our tour starts at Dove Lake below the dramatic Cradle Mountain and finishes at Cynthia Bay on Lake St Clair, a glacial lake 220m deep, 14km long. At other times, we start at Lake St Clair and finish at Cradle Mountain, and spend a night in Pine Valley as an early side-trip on the way to Windy Ridge and a day base-camping at Waterfall Valley. ITINERARY & TOUR DESCRIPTION Day 1: the glacially formed lakes and tarns, This is alpine Tasmania at its best, BCT to Cradle Valley and then continue on to Kitchen Hut and you will long retain vivid and Waterfall Valley from where we have the opportunity memories of this marvellous area. We make an early start from BCT and to scramble up the dolerite of Cradle travel to Cradle Valley via the bleak Mountain (1545m). -
Tasmanian Wilderness World Heritage Area Management Plan 2002
Tasmanian Wilderness World Heritage Area Management Plan 2002 (Altering the Tasmanian Wilderness World Heritage Area Management Plan 1999 in the Cockle Creek East Area) Parks and Wildlife Service Department of Primary Industries, Water and Environment Tasmanian Wilderness World Heritage Area Management Plan 2002 (Altering the Tasmanian Wilderness World Heritage Area Management Plan 1999 in the Cockle Creek East Area) This management plan for the Tasmanian Wilderness World Heritage Area has been prepared in accordance with the requirements of Part IV of the National Parks and Wildlife Act 1970. Unless otherwise specified, this plan adopts the interpretation of terms given in Section 3 of the National Parks and Wildlife Act 1970. The term ‘Minister’ when used in the plan means the Minister administering the Act. The term ‘PWS’ refers to the Parks and Wildlife Service. The draft of this plan [Draft Tasmanian Wilderness World Heritage Area Management Plan 2000 (Altering the Tasmanian Wilderness World Heritage Area Management Plan 1999 in the Cockle Creek East Area)] was available for public comment from 18 November 2000 until 18 December 2000. As required by Section 20 of the National Parks and Wildlife Act 1970, the Director PWS has reported to the Resource Planning and Development Commission on this public comment. This plan is a modified version of the draft, having been varied to take account of public input during that period, advice from the Resource Planning and Development Commission, the views of the Tasmanian Wilderness World Heritage Area Consultative Committee and the National Parks and Wildlife Advisory Council. Its approval was recommended on 21 December 2001 by the Tasmanian Wilderness World Heritage Area Ministerial Council under the joint management arrangement between the Tasmanian and Commonwealth Governments.