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 |
TRACE ELEMENT CHARACTERISTICS OF METAMORPHIC AND PLUTONIC ROCKS FROM THE BELGICA MOUNTAINS, EAST 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 |
10.15094/00002568 |
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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 |
TRACE ELEMENT CHARACTERISTICS OF METAMORPHIC AND PLUTONIC ROCKS FROM THE BELGICA MOUNTAINS, EAST ANTARCTICA |
著者名よみ |
オガサワラ, マサツグ
コジマ, ヒデヤス
ヤナイ, ケイゾウ
ニシダ, タミオ
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著者名(英) |
OGASAWARA, Masatsugu
KOJIMA, Hideyasu
YANAI, Keizo
NISHIDA, Tamio
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著者所属(英) |
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en |
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Geological Survey of Japan |
著者所属(英) |
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en |
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National Institute of Polar Research |
著者所属(英) |
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en |
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National Institute of Polar Research |
著者所属(英) |
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en |
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Institute of Earth Science, Faculty of Education, Saga University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Metamorphic and plutonic rocks from the Belgica Mountains, East Antarctica, have been geochemically examined to evaluate original rock types and petrogenesis. Trace element compositions on 16 samples from the Belgica Mountains and 4 samples from the Yamato Mountains were determined with an X-ray fluorescence spectrometer. High concentrations of Ba, Rb and Sr with very low levels of Nb, P and Y were found on granitic gneisses. The chemical feature is considered to represent the result of in situ partial melting. Basic and intermediate metamorphic rocks show variable compositions. Some of the rocks have slight enrichment of LIL elements with distinct Nb depletion. The chemical characteristics indicate that the rocks were generated probably under subduction environment. Syenitic rocks from the Belgica Mountains and gneisses from the Yamato Mountains are extremely enriched in Ba, Rb, Sr and Zr. Enriched source must be considered for the generation of the syenitic magma. |
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. 133-145,
発行日 1988-09
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出版者 |
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出版者 |
National Institute of Polar Research |