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PRELIMINARY REPORT OF GEOPHYSICAL AND GEOLOGICAL SURVEYS IN THE AMUNDSEN SEA, WEST ANTARCTICA
https://doi.org/10.15094/00002562
https://doi.org/10.15094/00002562a165b5ac-8130-43cc-8ffb-aa708a9e127f
名前 / ファイル | ライセンス | アクション |
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KJ00002368152 (1.9 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1988-09-01 | |||||
タイトル | ||||||
タイトル | PRELIMINARY REPORT OF GEOPHYSICAL AND GEOLOGICAL SURVEYS IN THE AMUNDSEN SEA, WEST ANTARCTICA | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00002562 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
論文名よみ | ||||||
その他のタイトル | PRELIMINARY REPORT OF GEOPHYSICAL AND GEOLOGICAL SURVEYS IN THE AMUNDSEN SEA, WEST ANTARCTICA | |||||
著者名よみ |
ヤマグチ, カズオ
× ヤマグチ, カズオ× タムラ, ヤスオ× ミズコシ, イクロウ× ツル, テツロウ |
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著者名(英) |
YAMAGUCHI, Kazuo
× YAMAGUCHI, Kazuo× TAMURA, Yasuo× MIZUKOSHI, Ikuro× TSURU, Tetsuro |
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著者所属(英) | ||||||
en | ||||||
Technology Research Center, Japan National Oil Corporation | ||||||
著者所属(英) | ||||||
en | ||||||
Technology Research Center, Japan National Oil Corporation | ||||||
著者所属(英) | ||||||
en | ||||||
Technology Research Center, Japan National Oil Corporation:(Present address)Japex Gulf Coast Corp. | ||||||
著者所属(英) | ||||||
en | ||||||
Technology Research Center, Japan National Oil Corporation:(Present address) Japex Corp. | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Geophysical and geological surveys in the Amundsen Sea, West Antarctica were conducted during the 1986-1987 Antarctic summer season. The study area covers the continental rise and the abyssal plain. The surveys revealed the existence of the sedimentary basin in the Amundsen Sea as the westward extension of the Bellingshausen Sea Basin. The basement of the basin becomes shallow in depth and rough in topography toward the west in a manner of stepwise change along the continental rise and the abyssal plain, which are clearly observed in seismic sections. In the continental rise, the presence of thick sediments which exceeded about 2.0s in two-way time was recognized. Characteristic sedimentary facies patterns in the continental rise such as dunes, channels, buried channels and migrating waves were observed in the upper parts of the sediment columns. In the abyssal plain, the acoustic basement showed remarkably complex relief and distorted reflections were observed in the sediments deposited on structural lows of the basement. The sediments were generally thin, about 0.5s in two-way time. From the viewpoint of depth, location, configuration, reflection pattern of the acoustic basement and thickness of total sediments, the study area can be divided into three parts, i.e., eastern part, central part and western part. The boundaries between them may be assumed to correspond to fracture zones which extend from the Pacific-Antarctic Ridges. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1072335X | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Antarctic Geosciences 巻 2, p. 55-67, 発行日 1988-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |