A reconnaissance survey of the glaciation of Macquarie Island
The paper reviews previous ideas on the glaciation of Macquarie Island and gives an account of glacial landforms observed during a brief visit in 1972. The field evidence indicates that Macquarie Island was not completely overridden in an easterly direction by an ice sheet which developed on a broad...
Published in: | Papers and Proceedings of The Royal Society of Tasmania |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
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1974
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Online Access: | https://eprints.utas.edu.au/13721/ https://eprints.utas.edu.au/13721/4/1974_Colhoun_Survey_glaciation_Macquarie_Island.pdf |
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ftunivtasmania:oai:eprints.utas.edu.au:13721 2023-05-15T13:31:54+02:00 A reconnaissance survey of the glaciation of Macquarie Island Colhoun, EA Goede, A 1974 application/pdf https://eprints.utas.edu.au/13721/ https://eprints.utas.edu.au/13721/4/1974_Colhoun_Survey_glaciation_Macquarie_Island.pdf en eng https://eprints.utas.edu.au/13721/4/1974_Colhoun_Survey_glaciation_Macquarie_Island.pdf Colhoun, EA and Goede, A 1974 , 'A reconnaissance survey of the glaciation of Macquarie Island' , Papers and Proceedings of the Royal Society of Tasmania, vol. 108 , pp. 1-19 , doi:10.26749/rstpp.108.1 <http://dx.doi.org/10.26749/rstpp.108.1>. cc_utas Tasmania Hobart Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Article PeerReviewed 1974 ftunivtasmania https://doi.org/10.26749/rstpp.108.1 2021-10-04T22:17:05Z The paper reviews previous ideas on the glaciation of Macquarie Island and gives an account of glacial landforms observed during a brief visit in 1972. The field evidence indicates that Macquarie Island was not completely overridden in an easterly direction by an ice sheet which developed on a broad submarine shelf to the west as advocated by L.R. Blake (in Mawson 1943). Local plateau, valley and cirque glaciers accumulated in depressions, basins and valleys on the surface of the plateau and at their maximum extent occupied about 40% of the island. A migration of the Antarctic Convergence from 150 - 200 km south of the island to north, of the island would depress sea level temperatures by 3-4 degrees; an amount adequate to account for the modest glaciation of the plateau surface. The majority of plant and animal species probably immigrated prior to the last glaciation, which is of Wisconsin age, and survived in non-glaciated areas of the present island and adjacent shelf to the west. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Macquarie Island University of Tasmania: UTas ePrints Antarctic The Antarctic Papers and Proceedings of The Royal Society of Tasmania 108 1 19 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Tasmania Hobart Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
spellingShingle |
Tasmania Hobart Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Colhoun, EA Goede, A A reconnaissance survey of the glaciation of Macquarie Island |
topic_facet |
Tasmania Hobart Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
description |
The paper reviews previous ideas on the glaciation of Macquarie Island and gives an account of glacial landforms observed during a brief visit in 1972. The field evidence indicates that Macquarie Island was not completely overridden in an easterly direction by an ice sheet which developed on a broad submarine shelf to the west as advocated by L.R. Blake (in Mawson 1943). Local plateau, valley and cirque glaciers accumulated in depressions, basins and valleys on the surface of the plateau and at their maximum extent occupied about 40% of the island. A migration of the Antarctic Convergence from 150 - 200 km south of the island to north, of the island would depress sea level temperatures by 3-4 degrees; an amount adequate to account for the modest glaciation of the plateau surface. The majority of plant and animal species probably immigrated prior to the last glaciation, which is of Wisconsin age, and survived in non-glaciated areas of the present island and adjacent shelf to the west. |
format |
Article in Journal/Newspaper |
author |
Colhoun, EA Goede, A |
author_facet |
Colhoun, EA Goede, A |
author_sort |
Colhoun, EA |
title |
A reconnaissance survey of the glaciation of Macquarie Island |
title_short |
A reconnaissance survey of the glaciation of Macquarie Island |
title_full |
A reconnaissance survey of the glaciation of Macquarie Island |
title_fullStr |
A reconnaissance survey of the glaciation of Macquarie Island |
title_full_unstemmed |
A reconnaissance survey of the glaciation of Macquarie Island |
title_sort |
reconnaissance survey of the glaciation of macquarie island |
publishDate |
1974 |
url |
https://eprints.utas.edu.au/13721/ https://eprints.utas.edu.au/13721/4/1974_Colhoun_Survey_glaciation_Macquarie_Island.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Macquarie Island |
genre_facet |
Antarc* Antarctic Ice Sheet Macquarie Island |
op_relation |
https://eprints.utas.edu.au/13721/4/1974_Colhoun_Survey_glaciation_Macquarie_Island.pdf Colhoun, EA and Goede, A 1974 , 'A reconnaissance survey of the glaciation of Macquarie Island' , Papers and Proceedings of the Royal Society of Tasmania, vol. 108 , pp. 1-19 , doi:10.26749/rstpp.108.1 <http://dx.doi.org/10.26749/rstpp.108.1>. |
op_rights |
cc_utas |
op_doi |
https://doi.org/10.26749/rstpp.108.1 |
container_title |
Papers and Proceedings of The Royal Society of Tasmania |
container_volume |
108 |
container_start_page |
1 |
op_container_end_page |
19 |
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1766022184346583040 |