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PETROCHEMICAL CHARACTERISTICS OF SOME ULTRAMAFIC GRANULITES IN ONGUL ISLANDS, EAST ANTARCTICA
https://doi.org/10.15094/00002546
https://doi.org/10.15094/0000254611ba8609-1ba8-444f-8395-ef724b564a8d
名前 / ファイル | ライセンス | アクション |
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KJ00002368083 (59.9 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1987-09-01 | |||||
タイトル | ||||||
タイトル | PETROCHEMICAL CHARACTERISTICS OF SOME ULTRAMAFIC GRANULITES IN ONGUL ISLANDS, EAST 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 | 10.15094/00002546 | |||||
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) | |||||
記事種別(英) | ||||||
en | ||||||
ABSTRACT | ||||||
論文名よみ | ||||||
その他のタイトル | PETROCHEMICAL CHARACTERISTICS OF SOME ULTRAMAFIC GRANULITES IN ONGUL ISLANDS, EAST ANTARCTICA | |||||
著者名よみ |
スズキ, モリヒサ
× スズキ, モリヒサ |
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著者名(英) |
SUZUKI, Morihisa
× SUZUKI, Morihisa |
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著者所属(英) | ||||||
en | ||||||
Institute of Geology and Mineralogy, Faculty of Science, Hiroshima University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Ultramafic granulites in the East and West Ongul Islands area can be grouped into at least two types, A (free from plagioclase and garnet) and B (with plagioclase and/or garnet). Type A tends to occur as massive isolated blocks or pods and type B as concordant sheets. Both of the types with different mode of occurrence and mineralogy show different petrochemical characteristics from each other. Type A is relatively rich in MgO and poor in Al_2O_3,K_2O and TiO_2 as compared with type B. Judged from the mode of occurrence and petrochemical characters, both types of ultramafic granulites as a whole are inferred to have been originated from the rocks intimately related with cumulate complexes. Type A is poorer in such incompatible elements as Ti and K than type B, so the degree of partial melting to give birth to the original rocks of the former is rather higher than the case of the latter. Moreover, it is worthy of note that most of the metabasites in the Prince Olav Coast, which are free from orthopyroxene, are plotted in the compositional range of type B here defined, and orthopyroxene-bearing extraordinary ones are plotted out of the range. More detailed investigations on the mode of occurrence, classification and the spatial distribution of ultramafic rocks in the Lutzow-Holm Complex will contribute to the knowledge on their origin and the tectonic setting of the Complex. | |||||
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 1, p. 197, 発行日 1987-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |