日立鉱床の形成に参加した水の起源
書誌事項
- タイトル別名
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- Origin of water participated in the formation of the cupriferous iron-sulfide deposit,Hitachi mine,northeast Japan,based on hydrogen isotope study.
抄録
Anthophyllite, biotite, cordierite and muscovite in the metasomatic rocks such as anthophyllite-cordierite rock closely associated with the copper-bearing iron-sulfide ores were separated to determine their δD and XFe values. The δD values of the ambient water in the process of formation of the metasomatic rocks can be estimated to be about -30‰ from these values. Coexisting biotite and hornblende from the Cretaceous granodiorite adjacent to the ore deposit showed the equilibrium relationship on δD-XFe diagram and the estimated δD value of the water equilibrated with both minerals is the same as the value for the metasomatic rocks. Two kinds of water participating in the ore formation and in the granodiorite intrusion seem to be derived from the same origin. On the other hand, δD values of hornblende from the amphibolites of normal chemical composition, which seem to be metamorphosed from basic tuffs and volcanic rocks without metasomatic change of composition are inferred to be in equilibrium to water with δD far lower than -30‰.
収録刊行物
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- 岩石鉱物鉱床学会誌
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岩石鉱物鉱床学会誌 76 (5), 156-162, 1981
一般社団法人 日本鉱物科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206216739968
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- NII論文ID
- 130003884436
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- ISSN
- 18830765
- 00214825
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可