| 武当地区武当岩群变火山岩原岩性质及其构造环境研究 |
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| 引用本文： | 付建明,张业明,蔡锦辉,陈盛峰.武当地区武当岩群变火山岩原岩性质及其构造环境研究[J].地质论评,1999,45(7):668-673. |
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| 作者姓名： | 付建明 张业明 蔡锦辉 陈盛峰 |
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| 作者单位： | 中国地质科学院宜昌地质矿产研究所,443003；湖北省鄂西北地质调查所,襄樊,441900 |
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| 摘 要： | 武当岩群中的变火山岩类经历了海水蚀变和区域变质的改造，其岩石学特征和化学成分发生了较大变化。不活动组分的研究表明，武当岩群中的变基性火山岩属拉斑玄武岩浆系列，原岩为玄武岩类；变酸性火山岩属钙碱性岩浆系列，原岩为流纹岩类，后者是前者结晶分异的产物。它们的地球化学特征具岛弧火山岩的性质，形成于岛弧环境。
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| 关 键 词： | 武当岩群 变火山岩 不活动组分 拉斑玄武岩和流纹岩 岛弧 |
Original Petrology and Tectonic Setting of Meta volcanic Rocks in Wudang Rock Group |
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| Fu Jianming,Zhang Yeming,Cai Jinhui and Chen Shengfeng.Original Petrology and Tectonic Setting of Meta volcanic Rocks in Wudang Rock Group[J].Geological Review,1999,45(7):668-673. |
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| Authors: | Fu Jianming Zhang Yeming Cai Jinhui and Chen Shengfeng |
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| Abstract: | The meta-volcanic rocks in the Wudang Rock Group have undergone alteration and regio nal metamorphism, so these rocks have been changed in petrographic features and chemical compositions. Studies of immobile elements in the rocks show that these meta-volcanic rocks were originally tholeiite and ryhyolite, and hav e geochemic al characteristics of island arc volcanic rocks, formed in the island arc setti ng. |
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