書誌事項
- タイトル別名
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- Whole-rock geochemistry of metamorphosed mafic rocks from Mt. Sangun area, Fukuoka, Kyushu
- フクオカケン,サン コオリヤマ トウロク ニ ブンプ スル クテツシツ ヘンセイガンルイ ノ ゼン ガン カガク ソセイ
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説明
<p>Geochemical data of metamorphosed mafic rocks can be a powerful tool for inferring the tectonic setting of their protoliths using discrimination diagrams. The metamorphic rocks from the Mt Sangun area consist mainly of mafic and pelitic rocks. In this study, we performed geochemical analyses of the metamorphosed mafic rocks from the Mt. Sangun area and plotted the data on discrimination diagrams. The rocks can be divided into two types: fine- and coarse-grained amphibolite. Most of the fine-grained amphibolites plot on the differentiation trend of basaltic magma; however, some of the coarse-grained amphibolites record accumulation according to the SiO2/Al2O3 - Mg# (100×MgO/(MgO+FeO*)) diagram. The fine-grained amphibolites are geochemically similar to mid-ocean ridge basalt (MORB) or back-arc basin basalt (BABB). In contrast, the coarse-grained amphibolites, excluding samples with cumulate characteristics, resemble volcanic arc basalts (VAB).</p>
収録刊行物
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- 地質学雑誌
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地質学雑誌 123 (12), 1055-1060, 2017-12-15
一般社団法人 日本地質学会
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詳細情報 詳細情報について
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- CRID
- 1390282681218703232
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- NII論文ID
- 130006575649
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- NII書誌ID
- AN00141768
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- ISSN
- 13499963
- 00167630
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- NDL書誌ID
- 028764351
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可