含金岩石形变系与元素调整分配相关性的高温高压实验研究  

A Study on High-Temperature and High-Pressure Experiment of Correlativity between Deformational System of Au-Bearing Rocks and Element Adjustments

作　　者：董法先[1] 李中坚[1] 陈柏林[1] 王建平[1] 

机构地区：[1]中国地质科学院地质力学研究所

出　　处：《地球学报（中国地质科学院院报）》1998年第3期280-287,共8页Acta Geoscientia Sinica

基　　金：地矿部地质力学开放实验室基金

摘　　要：含金岩石在温度３５０～４５０℃、围压３００ＭＰａ、轴压１００～１５０ＭＰａ蠕变状态下，Ａｇ、Ａｕ元素在黄铁矿、黄铜矿、闪锌矿等金属硫化物及石英、白（绢）云母中有富集的趋势；而在绿泥石、黑云母、钠长石及方解石等非金属矿物中，Ａｇ、Ａｕ元素丰度总体趋于降低。这一实验结果印证了构造动力是“成岩成矿”的重要因素之一。Modelling of the migration and accumulation of elements Au and Ag in rocks under temperatures of 350～450℃ and confining pressure of 300 MPa and axial pressure of 100～150 MPa is conducted .It is found that the contents of gold and silver get higher in metallic sulphides such as pyrite,chalcopyrite and sphalerite,as well as quartz,muscorite and get lower in chlorite, muscorite,sericite,biotite,albite and calcite,showing that the tectono_dynamics is one of important factors for petrogenesis and metallogenesis.

关 键 词：含金岩石 元素调整 高温高压实验 动力成矿 

分 类 号：P612[天文地球—矿床学] P618.510.5[天文地球—地质学]