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PERIDOTITES FROM THE SEAMOUNT OFF WILKES LAND, ANTARCTICA
https://doi.org/10.15094/00002794
https://doi.org/10.15094/000027944303beda-1f3e-47f9-a035-218c1fa60af5
名前 / ファイル | ライセンス | アクション |
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KJ00002368424 (1.3 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1995-09-01 | |||||
タイトル | ||||||
タイトル | PERIDOTITES FROM THE SEAMOUNT OFF WILKES LAND, 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 | 10.15094/00002794 | |||||
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 | PERIDOTITES FROM THE SEAMOUNT OFF WILKES LAND, ANTARCTICA | |||||
著者名よみ |
ニイダ, キヨアキ
× ニイダ, キヨアキ× ユアサ, マコト |
|||||
著者名(英) |
NIIDA, Kiyoaki
× NIIDA, Kiyoaki× YUASA, Makoto |
|||||
著者所属(英) | ||||||
en | ||||||
Department of Earth and Planetary Sciences, Graduate School of Science, Hokkaido University | ||||||
著者所属(英) | ||||||
en | ||||||
Geological Survey of Japan | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Dredged peridotite-pyroxenite samples from Antarctic Seamount B were examined to clarify the petrological signature. It is suggested from the tectonic setting that the emplacement of the peridotites was achieved by uplifting of upper mantle materials generated as a pre-oceanic rifting at the early stage of continental breakup between Antarctica and Australia. The Seamount B lherzolites contain a large volume of clinopyroxenes (6.5-12.9 modal%) and spinels (2.0-2.9 modal%). The Fo content in olivines ranges between 89.5 and 92.3. The spinels are highly aluminous (Cr#=7.8-15.7). Notably, the clinopyroxenes contain high Na_2O (1.24-2.35 wt%) and TiO_2 (0.27 to 0.85 wt%). The modal composition and mineral chemistry suggest that the Seamount B lherzolites display a 'fertile' subcontinental mantle signature ranging from the least to moderately depleted peridotite. | |||||
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 8, p. 169-180, 発行日 1995-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |