Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica
The drowned glacial trough formed when the ice sheet expanded in the past exists in the central part of Lutzow-Holm Bay. The trough extends north-south and joins the drowned glacial troughs off the Honnor Glacier and off the Telen Glacier, and also joins the Shirase Glacier probably. This trough sug...
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National Institute of Polar Research
1979
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ftnipr:oai:nipr.repo.nii.ac.jp:00001033 2023-05-15T13:47:59+02:00 Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica Kiichi Moriwaki 1979-10 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1033 http://id.nii.ac.jp/1291/00001033/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1033&item_no=1&attribute_id=18&file_no=1 en eng National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1033 http://id.nii.ac.jp/1291/00001033/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 14, 194-209(1979-10) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1033&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1979 ftnipr 2022-11-12T19:41:54Z The drowned glacial trough formed when the ice sheet expanded in the past exists in the central part of Lutzow-Holm Bay. The trough extends north-south and joins the drowned glacial troughs off the Honnor Glacier and off the Telen Glacier, and also joins the Shirase Glacier probably. This trough suggests the existence of a major geologic structural zone which seems to extend from the Shirase Glacier to the eastern margin of Gunnerus Bank. The continental shelf west of the trough is 200-300m deeper than that east of the trough. The submarine topography around the Ongul Islands also reflects the geologic structure. The trends of geomorphic features fit the foliation and jointing of gneissic basement rocks. Preglacial landform in the vicinity of the Ongul Islands had been gentle in relief like a peneplain. It was glaciated during a period of expansion of the ice sheet and was divided into several islands. Report Antarc* Antarctica Ice Sheet Memoirs of National Institute of Polar Research Polar Research Shirase Glacier National Institute of Polar Research Repository, Japan Ongul ENVELOPE(39.533,39.533,-69.017,-69.017) Shirase Glacier ENVELOPE(39.000,39.000,-70.333,-70.333) Gunnerus Bank ENVELOPE(33.000,33.000,-68.000,-68.000) Telen ENVELOPE(39.700,39.700,-69.633,-69.633) Honnor Glacier ENVELOPE(39.833,39.833,-69.383,-69.383) Telen Glacier ENVELOPE(39.700,39.700,-69.633,-69.633) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
The drowned glacial trough formed when the ice sheet expanded in the past exists in the central part of Lutzow-Holm Bay. The trough extends north-south and joins the drowned glacial troughs off the Honnor Glacier and off the Telen Glacier, and also joins the Shirase Glacier probably. This trough suggests the existence of a major geologic structural zone which seems to extend from the Shirase Glacier to the eastern margin of Gunnerus Bank. The continental shelf west of the trough is 200-300m deeper than that east of the trough. The submarine topography around the Ongul Islands also reflects the geologic structure. The trends of geomorphic features fit the foliation and jointing of gneissic basement rocks. Preglacial landform in the vicinity of the Ongul Islands had been gentle in relief like a peneplain. It was glaciated during a period of expansion of the ice sheet and was divided into several islands. |
format |
Report |
author |
Kiichi Moriwaki |
spellingShingle |
Kiichi Moriwaki Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica |
author_facet |
Kiichi Moriwaki |
author_sort |
Kiichi Moriwaki |
title |
Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica |
title_short |
Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica |
title_full |
Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica |
title_fullStr |
Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica |
title_full_unstemmed |
Submarine Topography of the Central Part of Lutzow-Holm Bay and around Ongle Islands, Antarctica |
title_sort |
submarine topography of the central part of lutzow-holm bay and around ongle islands, antarctica |
publisher |
National Institute of Polar Research |
publishDate |
1979 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1033 http://id.nii.ac.jp/1291/00001033/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1033&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.000,39.000,-70.333,-70.333) ENVELOPE(33.000,33.000,-68.000,-68.000) ENVELOPE(39.700,39.700,-69.633,-69.633) ENVELOPE(39.833,39.833,-69.383,-69.383) ENVELOPE(39.700,39.700,-69.633,-69.633) |
geographic |
Ongul Shirase Glacier Gunnerus Bank Telen Honnor Glacier Telen Glacier |
geographic_facet |
Ongul Shirase Glacier Gunnerus Bank Telen Honnor Glacier Telen Glacier |
genre |
Antarc* Antarctica Ice Sheet Memoirs of National Institute of Polar Research Polar Research Shirase Glacier |
genre_facet |
Antarc* Antarctica Ice Sheet Memoirs of National Institute of Polar Research Polar Research Shirase Glacier |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1033 http://id.nii.ac.jp/1291/00001033/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 14, 194-209(1979-10) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1033&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248232057307136 |