Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1988-09-01 |
タイトル |
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タイトル |
MEASUREMENTS AND INTERPRETATION OF GRAVITY ANOMALY IN AND AROUND ROSS ISLAND, ANTARCTICA |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00002558 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
論文名よみ |
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その他のタイトル |
MEASUREMENTS AND INTERPRETATION OF GRAVITY ANOMALY IN AND AROUND ROSS ISLAND, ANTARCTICA |
著者名よみ |
ミウラ, サトシ
カミヌマ, カツタダ
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著者名(英) |
MIURA, Satoshi
KAMINUMA, Katsutada
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著者所属(英) |
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en |
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Faculty of Science, Tohoku University |
著者所属(英) |
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en |
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National Institute of Polar Research |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Gravity surveys were carried out at 11 sites in Ross Island, Dailey Islands and the Dry Valleys during the 1986-1987 field season. Bouguer anomalies in Ross Island and Dailey Islands are nearly zero, within a few tens of mgals, whereas those in the Dry Valleys show large negative values down to -170 mgal. Therefore, the anomalies change steeply from west to east. A simple model for the crust and upper mantle around the region is proposed to explain the Bouguer anomalies. According to the model calculation, a possible interpretation of the steep variation of Bouguer anomaly up to 170 mgal is attributed to the difference in depth of the Moho discontinuity. This suggests that the depth of Moho at the Transantarctic Mountains is deeper than that beneath the McMurdo Sound by about 20km. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA1072335X |
書誌情報 |
Proceedings of the NIPR Symposium on Antarctic Geosciences
巻 2,
p. 24-29,
発行日 1988-09
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出版者 |
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出版者 |
National Institute of Polar Research |