書誌事項
- タイトル別名
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- Chemical composition of whole-rocks samples and volcanic glasses of the Miocene Tamateyama and Sekibutsu Tuffs in the area surrounding the Nara Basin
- ナラ ボンチ シュウエンブ ノ タマテヤマ ギョウカイガン セキブツ ギョウカイガン ノ カザン ガラス オヨビ ゼン ガン ノ カガク ソセイ
- 公開日
- 2010
- DOI
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- 10.5575/geosoc.116.447
- 公開者
- 一般社団法人 日本地質学会
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説明
We used XRF and INAA methods to analyze the chemical composition of whole-rock and volcanic glass samples from the Tamateyama and Sekibutsu Tuffs in the area surrounding the Nara Basin. Both tuffs have rhyolitic compositions with SiO2=73.6-75.0 wt.%, similar to that of the Muro Pyroclastic Flow Deposits (Muro PFD). The REE patterns of the tuffs are characterized by light REE enrichment, a pronounced negative Eu anomaly, and relatively constant chondrite-normalized middle to heavy REE abundances. These features are similar to those of S-type felsic rocks of the Outer Zone of southwest Japan. Our new petrochemical data provide additional constraints on correlations of the Tamateyama Tuff, Sekibutsu Tuff, and Muro PFD, and indicate that these units were derived from a large felsic igneous body in the Outer Zone of the Kii Peninsula.
収録刊行物
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- 地質学雑誌
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地質学雑誌 116 (8), 447-452, 2010
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
- 1390282681214767232
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- NII論文ID
- 130000413570
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- NII書誌ID
- AN00141768
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- ISSN
- 13499963
- 00167630
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- NDL書誌ID
- 10814351
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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サーチ
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
