| 中国东部中生代产铀火山岩的基本特征 |
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| 引用本文： | 张万林,王剑锋.中国东部中生代产铀火山岩的基本特征[J].矿物岩石,1991,11(2):19-26. |
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| 作者姓名： | 张万林 王剑锋 |
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| 作者单位： | 成都地质学院，成都地质学院，成都地质学院 成都 610059，成都 610059，成都 610059 |
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| 摘 要： | 产铀火山岩与非产铀火山岩存在岩石、岩石化学成分、微量元素及稀土元素的特征性差异;中国东部产铀火山洼地均形成于幔隆翼部重力高梯度带基底隆起构造环境,而火山洼地中铀的晚期主成矿作用,则以白垩纪拉张环境下贯入的中基性岩脉为先导,随后与之同步进行。
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| 关 键 词： | 火山岩 铀 中国 基底 隆起带 |
CHARACTERISTICS OF MESOZOIC URANIFEROUS VOLCANIC ROCKS IN EAST CHINA |
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| Zhang Wanlin Wang Jianfeng Liu Feng.CHARACTERISTICS OF MESOZOIC URANIFEROUS VOLCANIC ROCKS IN EAST CHINA[J].Journal of Mineralogy and Petrology,1991,11(2):19-26. |
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| Authors: | Zhang Wanlin Wang Jianfeng Liu Feng |
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| Abstract: | In order to distinguish uraniferous volcanic rocks from volcanic rocks poor in uranium and to provide basis for uranium metallogenic prognosis in volcanic rock areas, this paper deals with the characteristics of uraniferous volcanic rocks, including their petrology, chemistry, trace elements and REE. It is considered that uraniferous volcanic basins in east China overlie the flanks of mantle bulge in which gravity gradient are high. Intrusion of midbasio dikes in Cretaceous extension background is the precursor of late-stage main uranium mineralization in the basins. |
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| Keywords: | east China uraniferous volcanic rocks zone of basement uplift volcanic basins lamprophyre |
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