RECONSTRUCTION OF MAXIMUM GLACIAL EXTENT IN THE CENTRAL SØR RONDANE MOUNTAINS, EAST ANTARCTICA
P(論文) Glacial landforms and deposits indicating the past expansion of glaciers are described. It is conspicuous that thick erratics form an end-moraine ridge or an extensive depositional surface on the summit, and that roches moutonnees are developed on the sharp ridge. On the basis of these traces,...
| Main Authors: | , , , , , |
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| Language: | English |
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National Institute of Polar Research
1988
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| Subjects: | |
| Online Access: | https://nipr.repo.nii.ac.jp/record/2569/files/KJ00002368159.pdf https://doi.org/10.15094/00002569 https://nipr.repo.nii.ac.jp/records/2569 |
| Summary: | P(論文) Glacial landforms and deposits indicating the past expansion of glaciers are described. It is conspicuous that thick erratics form an end-moraine ridge or an extensive depositional surface on the summit, and that roches moutonnees are developed on the sharp ridge. On the basis of these traces, a paleogeographical reconstruction during the time of the maximum glaciation is presented : (1) The southern half of the central Sør Rondane Mountains was mostly covered with the ice sheet from the ice plateau; (2) Ice fall was located 10km further north than at present; (3) Ice was about 300-350m thicker than at present; (4) The northern half of the central Sør Rondane Mountains rose relatively widely above the ice sheet and outlet glacier. departmental bulletin paper |
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