| 万岩基性火山-侵入杂岩的地球化学及其构造背景 |
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| 引用本文： | 刘继顺,何绍勋,肖禧砥.万岩基性火山-侵入杂岩的地球化学及其构造背景[J].中南大学学报(自然科学版),1993(2). |
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| 作者姓名： | 刘继顺 何绍勋 肖禧砥 |
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| 作者单位： | 中南矿冶学院地质系，中南矿冶学院地质系，中南矿冶学院地质系 |
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| 摘 要： | 万岩基性火山-侵入杂岩地处湖南省古丈县境内,江南古陆的西北缘,主要由超浅成的辉长-辉绿岩、基性熔岩和火山碎屑岩所组成。岩石化学和微量元素、稀土元素以及钕同位素地球化学研究表明,万岩基性火山-侵入杂岩属碱性-钙碱性系列的板块内部(即大陆内部)火山作用的产物,形成于雪峰期大陆拉张伸展构造背景之下。
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| 关 键 词： | 火山-侵入杂岩 地球化学 板内玄武岩 伸展构造 湖南 |
GEOCHEMISTRY AND GEOTECTONIC SETTING OF WANYAN VOLCANIC-INTRUSIVE COMPLEX IN HUNAN,SOUTH CHINA |
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| Liu Jishun,He Shaoxun,Xiao Xidi.GEOCHEMISTRY AND GEOTECTONIC SETTING OF WANYAN VOLCANIC-INTRUSIVE COMPLEX IN HUNAN,SOUTH CHINA[J].Journal of Central South University:Science and Technology,1993(2). |
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| Authors: | Liu Jishun He Shaoxun Xiao Xidi |
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| Institution: | Liu Jishun;He Shaoxun;Xiao Xidi Department of Geology |
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| Abstract: | Located in the northwest of Jiangnan Old Landmass,Hunan,South China,Wanyan vol-
canic-intrusive complex consists mostly of ultra-supergene gabbro-diabases,basic lavas and
pyroclastic rocks,belonging to alkaline series-calci-alkaline series.Petrochemistry and geo-
chemistries of trace element,REE and Nd isotope reveal that Wanyan complex resulted from
the intraplate(continental)basic volcanism and developed by the continental extension dur-
ing Xuefengian Period. |
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| Keywords: | volcanic-intrusive complex geochemistry intraplate basalt extension Hunan |
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