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日本海竹島海山(仮称)のかんらん岩捕獲岩の成因とその意義
http://hdl.handle.net/2297/36552
http://hdl.handle.net/2297/36552e14ecac2-35d7-4d1b-85cc-b09be0219bcf
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-ARAI-S-1.pdf (2.8 MB)
Download is available from 9999/12/31.
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-11-09 | |||||
| タイトル | ||||||
| タイトル | 日本海竹島海山(仮称)のかんらん岩捕獲岩の成因とその意義 | |||||
| タイトル | ||||||
| タイトル | Peridotite xenoliths from the Takeshima seamount, Japan: an insight into the upper mantle beneath the Sea of Japan | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | journal article | |||||
| 著者 |
二ノ宮, 小満
× 二ノ宮, 小満× 荒井, 章司× 石井, 輝秋 |
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| 書誌情報 |
岩石鉱物科学 = Japanese Magazine of Mineralogical and Petrological Sciences 巻 36, 号 1, p. 1-14, 発行日 2007-01-30 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1345-630X | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA1146088X | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.2465/gkk.36.1 | |||||
| 出版者 | ||||||
| 出版者 | Japan Association of Mineralogical Sciences = 日本鉱物科学会 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The Sea of Japan is one of the back-arc basins distributed around the western rim of the Pacific. Nature of the plume for back-arc basin (= BAB) opening is unknown partly because petrological characteristics of the BAB mantle are not well known compared with mid-ocean ridge (= MOR) mantle. Peridotite xenoliths in an alkali basalt dredged from the Takeshima seamount (tentative name), ca. 230 km to the north of Oki islands, are examined to clarify the petrological feature of the Japan-Sea mantle. They are spinel-bearing lherzolite to harzburgite with equigranular to porphyroclastic textures. They can be classified into two types (Type 1 and Type 2 peridotites) in terms of REE (= rare earth elements) patterns of clinopyroxene (= cpx). Type 1 peridotites (Cr# of spinels, 0.4-0.5) are similar to abyssal peridotites in terms of major element chemistry and middle- to heavy-REE concentrations of cpx. The cpx in the former shows slight enrichment of LREE (= light REE), which is apparently due to metasomatism by slab-derived fluids/melts. Type 2 peridotites have high-REE cpx with flat to slightly LREE-enriched patterns, and are quite similar to subcontinental peridotites obtained as xenoliths from China. The southern part of the Sea of Japan was formed by mainly thinning and rifting of the continental lithosphere. Type 2 peridotites are a remnant of the continental lithospheric mantle. Chemical characteristics of BAB basalts and Type 1 peridotites indicate that open-system melting of peridotite affected by a flux from the downgoing slab was involved in the Japan-Sea opening. | |||||
| 権利 | ||||||
| 権利情報 | Copyright © Japan Association of Mineralogical Sciences 日本鉱物科学会 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://jams.la.coocan.jp/ | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.jstage.jst.go.jp/article/gkk/36/1/36_1_1/_pdf | |||||
