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Detrital chromian spinels in Devonian-Carboniferous sandstones of Hikoroichi area,NE Japan : their provenance and tectonic relationship
http://hdl.handle.net/2241/7368
http://hdl.handle.net/2241/73682fb874d8-28b4-4121-8074-cdbc0bccbdd3
名前 / ファイル | ライセンス | アクション |
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3.pdf (1.1 MB)
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Item type | Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-03-08 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Detrital chromian spinels in Devonian-Carboniferous sandstones of Hikoroichi area,NE Japan : their provenance and tectonic relationship | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
Hisada, Kenichiro
× Hisada, Kenichiro× Bunyoungkul, Thitikorn× Charusiri, Punya |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A total of 30 sandstones were collected from the well-defined mappable units of Middle Devonian to Early Carboniferous ages in the South Kitakami Terrane(=SKT) NE Japan, They are classified as litharenite, feldspathic litharenite,and lithic arkose. QFL discimination diagram of the studied sandstones indicates the provenance of magniatic arcs, Detrital chromian spinels, present as accessory minerals in the rocks, are discovered from 6 clastic samples, A total of 37 detrital chromian spinels are detemined for their major-oxide analysis using EPMA,Fe-Cr-Al diagram displays rather low Fe 3+ values suggesting the provenance from ultramafic regions. The result also indicates that most chromian spinels have wider ranges of Cr/(Cr+Al). The rather low values of TiO,contents suggest that the sandstone-hosted spinels were derived from ultramafic provenance. These lines of evidence support the idea that spinel-bearing sandstones were derived from ultramafic sources occurring in the fore-are leclonic setting of the northern peri-Gondwana Land. | |||||
言語 | en | |||||
書誌情報 |
en : Science reports of the Institute of Geoscience, University of Tsukuba. Section B, Geological sciences 巻 23, p. 39-51, 発行日 2002-03-29 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0388-6182 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00441817 | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Institute of Geoscience, University of Tsukuba |