RECONSTRUCTION OF MAXIMUM GLACIAL EXTENT IN THE CENTRAL SØR RONDANE MOUNTAINS, EAST ANTARCTICA

• Main Authors: ヒラカワ, カズオミ, マツオカ, ノリカズ, モリワキ, キイチ, HIRAKAWA, Kazuomi, MATSUOKA, Norikazu, MORIWAKI, Kiichi
• Language: English
• Published: National Institute of Polar Research 1988
• Subjects: East Antarctica; Sør-Rondane; Sør Rondane Mountains; Moraine Ridge; Antarc*; Antarctica; Ice Sheet
• 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

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