| 早元古代滹沱群变玄武岩岩石地球化学及构造环境 |
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| 引用本文： | 颜耀阳,王汝铮.早元古代滹沱群变玄武岩岩石地球化学及构造环境[J].地质找矿论丛,1996,11(3):18-26. |
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| 作者姓名： | 颜耀阳 王汝铮 |
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| 作者单位： | 中国地质科学院天津地质矿产研究所 |
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| 摘 要： | 早元古代滹沱群存在先后两期火山岩，早期青石村组变玄武岩呈灰黑色，致密块状构造，主要岩类为玄武岩，部分为玄武安山岩，玄武粗安岩，具有与火山弧玄武相似的成分特点；晚期河边村组变玄武岩呈灰绿色。片理发育，主要岩类为碱玄岩为碧玄岩。具有典型板内玄武岩的成分特点。
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| 关 键 词： | 早元古代 玄武岩 构造环境 岩石地球化学 |
THE PETRO-GEOCHEMISTRY AND TECTONIC SETTING OF METABASALTS IN THE EARLY PROTEROZOIC HUTUO GROUP |
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| Yan Yaoyang and Wang Ruzheng.THE PETRO-GEOCHEMISTRY AND TECTONIC SETTING OF METABASALTS IN THE EARLY PROTEROZOIC HUTUO GROUP[J].Contributions to Geology and Mineral Resources Research,1996,11(3):18-26. |
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| Authors: | Yan Yaoyang and Wang Ruzheng |
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| Institution: | Tianjin Institute of Geology and Mineral Resources, CAGS, Tianjin, 300170;Tianjin Institute of Geology and Mineral Resources, CAGS, Tianjin, 300170 |
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| Abstract: | In the early Proterozoic Hutuo Group occur two volcano-deposited rocks.The earlier is metabasalts of Qingshicun Formation in greyish dark colour.It consists of basaltic andesite and small basaltic trachyte andesite with massive structure and the characteristic comoposition of basalt at volcanic archs.The later is the metabasalt of Hebiancun Formation in greyish green colour consisting of alkline basalt and basanite with typical composition of intraplate basalt.And.it is characterized by well-developed schistosity.Therefore,it is infered that the basalt in Hutuo Group were erupted in continent of intraplate backtground. |
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