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METASOMATIC VEINS AND MINERALS IN MANTLE-DERIVED XENOLITHS, ANTARCTICA
https://doi.org/10.15094/00002563
https://doi.org/10.15094/000025635a95237d-f027-420d-bb83-2ec8022f46bd
名前 / ファイル | ライセンス | アクション |
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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 | METASOMATIC VEINS AND MINERALS IN MANTLE-DERIVED XENOLITHS, 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 | 10.15094/00002563 | |||||||
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 | METASOMATIC VEINS AND MINERALS IN MANTLE-DERIVED XENOLITHS, ANTARCTICA | |||||||
著者名よみ |
ニイダ, キヨアキ
× ニイダ, キヨアキ
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著者名(英) |
NIIDA, Kiyoaki
× NIIDA, Kiyoaki
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著者所属(英) | ||||||||
en | ||||||||
Department of Geology and Mineralogy, Faculty of Science, Hokkaido University | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | Late Cenozoic basanites of the McMurdo Volcanic Group, Antarctica, contain numerous ultramafic xenoliths derived from the upper mantle. The xenoliths show multiple-episodes of metasomatism resulting in formation of the veined metasomites and the equilibrated metasomites. The metasomatized xenoliths are characterized texturally and chemically by co-existence of Ti-augite, phlogopitic mica, pargasitic and kaersutitic amphiboles, Al-spinel and apatite with the upper mantle olivine, pyroxenes, and Cr-spinel. Ti-, Al-, Fe- and Ca- enrichments and Si-, Cr- and Mg-depletions observed in the metasomatic clinopyroxenes indicate that the metasomatism was probably generated by an alkaline silicate melt reacting with solid phases of the upper mantle. Ti- and Fe-enrichments and Al-depletion in the metasomatic clinopyroxenes can be also detected as a separate episode of metasomatism different from the above veined-type reactions. Texturally and chemically equilibrated phlogopites and pargasites in the mantle-derived xenoliths provide a different type metasomatism, showing conspicuous depletions in TiO_2,Al_2O_3,Cr_2O_3,and K_2O, and enrichments in SiO_2 and Na_2O. | |||||||
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. 68-79, 発行日 1988-09 |
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出版者 | ||||||||
出版者 | National Institute of Polar Research |