PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA
Geophysical and geological surveys of the TH95 cruise on the R/V HAKUREI-MARU, in the abyssal basin and the continental rise area of Dumont d'Urville Sea (DDS) offshore of Adelie and Wilkes Land, and Victoria Land Basin (VLB) in the western part of the Ross Sea continental shelf, were carried o...
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Technology Research Center, Japan National Oil Corporation
1997
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ftnipr:oai:nipr.repo.nii.ac.jp:00002842 2023-05-15T15:59:54+02:00 PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA タナハシ マナブ イシハラ タケミ ユアサ マコト ムラカミ フミトシ ニシムラ アキラ Manabu TANAHASHI Takemi ISHIHARA Makoto YUASA Fumitoshi MURAKAMI Akira NISHIMURA 1997-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2842 http://id.nii.ac.jp/1291/00002842/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2842&item_no=1&attribute_id=18&file_no=1 en eng Technology Research Center, Japan National Oil Corporation Geological Survey of Japan National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2842 http://id.nii.ac.jp/1291/00002842/ AA1072335X Proceedings of the NIPR Symposium on Antarctic Geosciences, 10, 36-58(1997-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2842&item_no=1&attribute_id=18&file_no=1 Wilkes Land margin Dumont d'Urville Sea Victoria Land Basin marine geological and geophysical surveys sedimentary sequences Departmental Bulletin Paper P(論文) 1997 ftnipr 2022-11-26T19:42:17Z Geophysical and geological surveys of the TH95 cruise on the R/V HAKUREI-MARU, in the abyssal basin and the continental rise area of Dumont d'Urville Sea (DDS) offshore of Adelie and Wilkes Land, and Victoria Land Basin (VLB) in the western part of the Ross Sea continental shelf, were carried out in the 1995-96 austral summer season. The deformed very thick sedimentary sequences, which are interpreted to have been deposited in the pre-rift and rifting stage, are revealed under thick post-break-up pelagic sedimentary sequences in DDS. There are several basement highs of (1) the igneous basement, including ultra-mafic rocks, which was uplifted in associated with the fracture zone, (2) the uplifted oceanic basement which is deformed by the normal fault, (3) the structural high with anomalous basement, which is interpreted as a piece of micro-continent, in DDS. These phenomena suggest the wide area of DDS is underlain by the characteristic intermediate type of crust between oceanic and continental. Even the deep structure of most of the Ross Sea continental shelf is not clear by the strong sea bottom multiples, more than 7km of thick sedimentary sequences in VLB is confirmed with MCS and OBS survey. The sequences are deformed by the extensional normal faults along the western margin and the Terror Rift. Geological samples which were recovered in the VLB gave important evidence of the late Ross Ice Shelf advance and retreat history. Report D'Urville Sea Dumont D'Urville Sea Ice Shelf Ross Ice Shelf Ross Sea Victoria Land Wilkes Land National Institute of Polar Research Repository, Japan Austral Ross Sea Victoria Land Ross Ice Shelf Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) D'Urville Sea ENVELOPE(140.000,140.000,-65.000,-65.000) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Wilkes Land margin Dumont d'Urville Sea Victoria Land Basin marine geological and geophysical surveys sedimentary sequences |
spellingShingle |
Wilkes Land margin Dumont d'Urville Sea Victoria Land Basin marine geological and geophysical surveys sedimentary sequences タナハシ マナブ イシハラ タケミ ユアサ マコト ムラカミ フミトシ ニシムラ アキラ Manabu TANAHASHI Takemi ISHIHARA Makoto YUASA Fumitoshi MURAKAMI Akira NISHIMURA PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA |
topic_facet |
Wilkes Land margin Dumont d'Urville Sea Victoria Land Basin marine geological and geophysical surveys sedimentary sequences |
description |
Geophysical and geological surveys of the TH95 cruise on the R/V HAKUREI-MARU, in the abyssal basin and the continental rise area of Dumont d'Urville Sea (DDS) offshore of Adelie and Wilkes Land, and Victoria Land Basin (VLB) in the western part of the Ross Sea continental shelf, were carried out in the 1995-96 austral summer season. The deformed very thick sedimentary sequences, which are interpreted to have been deposited in the pre-rift and rifting stage, are revealed under thick post-break-up pelagic sedimentary sequences in DDS. There are several basement highs of (1) the igneous basement, including ultra-mafic rocks, which was uplifted in associated with the fracture zone, (2) the uplifted oceanic basement which is deformed by the normal fault, (3) the structural high with anomalous basement, which is interpreted as a piece of micro-continent, in DDS. These phenomena suggest the wide area of DDS is underlain by the characteristic intermediate type of crust between oceanic and continental. Even the deep structure of most of the Ross Sea continental shelf is not clear by the strong sea bottom multiples, more than 7km of thick sedimentary sequences in VLB is confirmed with MCS and OBS survey. The sequences are deformed by the extensional normal faults along the western margin and the Terror Rift. Geological samples which were recovered in the VLB gave important evidence of the late Ross Ice Shelf advance and retreat history. |
format |
Report |
author |
タナハシ マナブ イシハラ タケミ ユアサ マコト ムラカミ フミトシ ニシムラ アキラ Manabu TANAHASHI Takemi ISHIHARA Makoto YUASA Fumitoshi MURAKAMI Akira NISHIMURA |
author_facet |
タナハシ マナブ イシハラ タケミ ユアサ マコト ムラカミ フミトシ ニシムラ アキラ Manabu TANAHASHI Takemi ISHIHARA Makoto YUASA Fumitoshi MURAKAMI Akira NISHIMURA |
author_sort |
タナハシ マナブ |
title |
PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA |
title_short |
PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA |
title_full |
PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA |
title_fullStr |
PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA |
title_full_unstemmed |
PRELIMINARY REPORT OF THE TH95 GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IN THE ROSS SEA AND DUMONT D'URVILLE SEA |
title_sort |
preliminary report of the th95 geological and geophysical survey results in the ross sea and dumont d'urville sea |
publisher |
Technology Research Center, Japan National Oil Corporation |
publishDate |
1997 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2842 http://id.nii.ac.jp/1291/00002842/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2842&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(140.013,140.013,-66.667,-66.667) ENVELOPE(140.000,140.000,-65.000,-65.000) |
geographic |
Austral Ross Sea Victoria Land Ross Ice Shelf Wilkes Land Dumont d'Urville Dumont-d'Urville D'Urville Sea |
geographic_facet |
Austral Ross Sea Victoria Land Ross Ice Shelf Wilkes Land Dumont d'Urville Dumont-d'Urville D'Urville Sea |
genre |
D'Urville Sea Dumont D'Urville Sea Ice Shelf Ross Ice Shelf Ross Sea Victoria Land Wilkes Land |
genre_facet |
D'Urville Sea Dumont D'Urville Sea Ice Shelf Ross Ice Shelf Ross Sea Victoria Land Wilkes Land |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2842 http://id.nii.ac.jp/1291/00002842/ AA1072335X Proceedings of the NIPR Symposium on Antarctic Geosciences, 10, 36-58(1997-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2842&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766395801799491584 |