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残浆沸腾与锡钨成矿作用

Ebullition of the Residual Magma and Sn-W Mineralization

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【作者】 金明霞; 王洁民; 高锦曦;

【Author】 Jin Mingxia Wang Jiemin (Chengdu Institute of Geology and Mineral Resources,CAGS) Gao Jinxi (Department of International Cooperation & Science and Technology,MNLR,Beijing)

【机构】 中国地质科学院成都地质矿产研究所; 国土资源部国际合作与科技司!北京;

【摘要】 与锡钨成矿作用有关的“ S”型花岗岩,晚期残浆有强烈的沸腾作用,同时派生出高温、高压、高盐度和高密度锡钨成矿流体,并遵循应力差、温度差、盐度差和密度差的轨迹,在相对封闭的环境中作侧向或垂向运移,当运移到应力释放部位时,流体的物理化学条件发生跳跃式突变而成矿。

【Abstract】 A violent ebullition occurred in late residual magma of the S_type granite related to.Sn-W mineralization,and induced the generation of Sn and W ore_forming fluids of high temperature,high pressure,high salinity and high density.The fluids followed a path of stress difference,temperature difference,salinity difference and density difference for lateral migration or vertical migration in a relatively enclosed environment.The physicochemical condition experienced a jumping mutation, so that fluids precipitated and formed deposits when they were transported to the place where stress was released.

【基金】 国家自然科学基金
  • 【分类号】P618.440.1;P618.67
  • 【被引频次】16
  • 【下载频次】114
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