| 海水交代过程中细碧角斑岩的矿物组合和矿物成分的变化规律——以陕西略阳细碧角斑岩为例 |
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| 关键词:spilitic keratophyre metasomatism mineral assemblage Bikou group Lueyang, Shaanxi |
| 基金项目:国土资源部重点基础项目“青藏高原构造热事件与高原隆升” |
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| Mineral Assemblage and Compositional Evolution of Spilitic Keratophyre during the Interaction between Basaltic Andesite and Seawater: Spilitic Keratophyre Located in Lueyang, Shaanxi |
| Mineralogical, petrology geochemical and whole rock oxygen isotopic studies of spilitic keratophyres located in Lueyang, Shaanxi Province show that the rocks were formed by the interaction between basaltic andesite and seawater. During the hydrothermal metamorphism, there existed two stages characterized by the variations of MgO and Na 2O. During the late stage, the mineral assemblage changed from albite + epidote + actinolite to albite + chlorite + quartz, and finally to chlorite + quartz, which seems to be a stable assemblage. |
| ZHENG Lai-lin.2002.Mineral Assemblage and Compositional Evolution of Spilitic Keratophyre during the Interaction between Basaltic Andesite and Seawater: Spilitic Keratophyre Located in Lueyang, Shaanxi[J].Acta Geoscientica Sinica,23(3):229-232. |
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