Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica
Geological and geophysical surveys off the Amery Ice Shelf, East Antarctica, were carried out during the 1984-1985 Antarctic summer season. The surveyed area involves the continental shelf, slope, rise, the abyssal plain and part of the Kerguelen Plateau. Thickness of the sedimentary layer beneath t...
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ftnipr:oai:nipr.repo.nii.ac.jp:00002013 2023-05-15T13:22:01+02:00 Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica Mizukoshi,Ikuro Sunouchi,Hisao Saki,Takao Sato,Shunji Tanahashi,Manabu 1986-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2013 http://id.nii.ac.jp/1291/00002013/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2013&item_no=1&attribute_id=18&file_no=1 en eng Technology Research Center, Japan National Oil Corporation/Technology Research Center, Japan National Oil Corporation/Technology Research Center, Japan National Oil Corporation/Technology Research Center, Japan National Oil Corporation/Geological Survey of Japan https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2013 http://id.nii.ac.jp/1291/00002013/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 43, 48-61(1986-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2013&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1986 ftnipr 2022-11-12T19:42:52Z Geological and geophysical surveys off the Amery Ice Shelf, East Antarctica, were carried out during the 1984-1985 Antarctic summer season. The surveyed area involves the continental shelf, slope, rise, the abyssal plain and part of the Kerguelen Plateau. Thickness of the sedimentary layer beneath the continental shelf is estimated to be more than 3.5km from a sonobuoy result. A series of upper strata progrades seaward and is eroded at the sea bottom. In the continental slope, rise and the abyssal plain, the presence of sediments whose thickness exceeds 6km is confirmed. The sediments seem to become thicker toward the continent, particularly the center of Prydz Bay to which the Lambert graben is thought to extend from the inland of Antarctica. In the southwestern margin of the Kerguelen Plateau, the acoustic basement rises toward the Plateau, and is thinly covered by an acoustic transparent layer whose age is relatively old. Dipping strata suggest that the acoustic basement consists of highly consolidated sedimentary layers which have been subjected to a complex tectonic movement related to the origin of the Plateau. Report Amery Ice Shelf Antarc* Antarctic Antarctica East Antarctica Ice Shelf Memoirs of National Institute of Polar Research Polar Research Prydz Bay National Institute of Polar Research Repository, Japan Antarctic East Antarctica Kerguelen Prydz Bay Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Geological and geophysical surveys off the Amery Ice Shelf, East Antarctica, were carried out during the 1984-1985 Antarctic summer season. The surveyed area involves the continental shelf, slope, rise, the abyssal plain and part of the Kerguelen Plateau. Thickness of the sedimentary layer beneath the continental shelf is estimated to be more than 3.5km from a sonobuoy result. A series of upper strata progrades seaward and is eroded at the sea bottom. In the continental slope, rise and the abyssal plain, the presence of sediments whose thickness exceeds 6km is confirmed. The sediments seem to become thicker toward the continent, particularly the center of Prydz Bay to which the Lambert graben is thought to extend from the inland of Antarctica. In the southwestern margin of the Kerguelen Plateau, the acoustic basement rises toward the Plateau, and is thinly covered by an acoustic transparent layer whose age is relatively old. Dipping strata suggest that the acoustic basement consists of highly consolidated sedimentary layers which have been subjected to a complex tectonic movement related to the origin of the Plateau. |
format |
Report |
author |
Mizukoshi,Ikuro Sunouchi,Hisao Saki,Takao Sato,Shunji Tanahashi,Manabu |
spellingShingle |
Mizukoshi,Ikuro Sunouchi,Hisao Saki,Takao Sato,Shunji Tanahashi,Manabu Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica |
author_facet |
Mizukoshi,Ikuro Sunouchi,Hisao Saki,Takao Sato,Shunji Tanahashi,Manabu |
author_sort |
Mizukoshi,Ikuro |
title |
Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica |
title_short |
Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica |
title_full |
Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica |
title_fullStr |
Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica |
title_full_unstemmed |
Preliminary report of geological and geophysical surveys off Amery Ice Shelf, East Antarctica |
title_sort |
preliminary report of geological and geophysical surveys off amery ice shelf, east antarctica |
publisher |
Technology Research Center, Japan National Oil Corporation/Technology Research Center, Japan National Oil Corporation/Technology Research Center, Japan National Oil Corporation/Technology Research Center, Japan National Oil Corporation/Geological Survey of Japan |
publishDate |
1986 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2013 http://id.nii.ac.jp/1291/00002013/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2013&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) |
geographic |
Antarctic East Antarctica Kerguelen Prydz Bay Amery Amery Ice Shelf |
geographic_facet |
Antarctic East Antarctica Kerguelen Prydz Bay Amery Amery Ice Shelf |
genre |
Amery Ice Shelf Antarc* Antarctic Antarctica East Antarctica Ice Shelf Memoirs of National Institute of Polar Research Polar Research Prydz Bay |
genre_facet |
Amery Ice Shelf Antarc* Antarctic Antarctica East Antarctica Ice Shelf Memoirs of National Institute of Polar Research Polar Research Prydz Bay |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2013 http://id.nii.ac.jp/1291/00002013/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 43, 48-61(1986-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2013&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766362864911646720 |