| 皖南葛公镇组火山岩的发现及其特征 |
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| 引用本文： | 吴家富,孙乘云,褚进海,耿晓光,谢建成.皖南葛公镇组火山岩的发现及其特征[J].安徽地质,2001,11(1):24-26. |
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| 作者姓名： | 吴家富 孙乘云 褚进海 耿晓光 谢建成 |
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| 作者单位： | 安徽省地质调查院,安徽,合肥,230001 |
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| 摘 要： | 通过1：5万官港等3幅野外地质调查，在葛公镇组发现了层状、似层状变流纹岩、变流纹质角砾熔岩等的浅变质中酸性火山岩。以流纹质为主的火山岩系是局部挤压上升陆壳增厚构造环境的产物，岩浆起源较浅。时代相当于新元古代。
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| 关 键 词： | 安徽 皖南葛公镇组 火山岩 岩石化学特征 地质意义 火山活动 |
| 文章编号： | 1005-6157(2001)01-0024-03 |
| 修稿时间： | 2000年8月29日 |
THE DISCOVERY AND CHARACTERISTICS OF THE GEGONGZHEN FORMATION OF VOLCANICS IN THE SOUTH ANHUI |
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| WU Jia-fu,SUN Cheng-yun,CHU Jin-hai,GENG Xiao-guang,XIE Jian-cheng.THE DISCOVERY AND CHARACTERISTICS OF THE GEGONGZHEN FORMATION OF VOLCANICS IN THE SOUTH ANHUI[J].Geology of Anhui,2001,11(1):24-26. |
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| Authors: | WU Jia-fu SUN Cheng-yun CHU Jin-hai GENG Xiao-guang XIE Jian-cheng |
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| Abstract: | After three sheets of 1: 50000 geological mapping in Guangang we found stratified and stratitoid meta - rhyolitic breccia lava in the Gegongzhen Formation, which are thought to be epimetamorphic intermediate - acid volcanics. The rhyolite - dominated vol- canics of this kind are resulted from the shallowly - sourced magma in the partially compressed uplifting continental crust thickening tectonic environment in the late Proterozoic. |
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| Keywords: | volcanics discovery Gegongzhen Formation South Anhui |
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