湘赣边区中新生代走滑断裂系统及对热液铀成矿作用的控制  

THE MESOZOIC-CENOZOIC INTRACONTINENTAL STRIKE-SLIP FAULT SYSTEM AND THE ASSOCIATED HYDROTHERMAL URANIUM MINERALIZATION IN THE BORDER AREA OF EASTERN HUNAN AND WESTERN JIANGXI PROVINCES

作　　者：李建威[1] 李先福[2] 李紫金[1] 傅昭仁[1] 

机构地区：[1]中国地质大学,湖北武汉430074 [2]武汉化工学院,湖北武汉430073

出　　处：《地质找矿论丛》2000年第2期166-173,共8页Contributions to Geology and Mineral Resources Research

基　　金：国家自然科学基金项目!(49572 1 4 8);国土资源部矿产资源定量预测与勘查评价开放实验室项目资助

摘　　要：湘赣边区自晚三叠世开始进入全新的陆内走滑造山作用阶段 ,并在白垩纪早期经历了从会聚走滑向离散走滑的转换。对该走滑断裂系统的构造解析及铀矿床成矿地质特征的综合分析表明 ,NNE向走滑断裂直接控制了区域大规模热液铀成矿作用的发生。对走滑断裂控矿作用的特点进行了详细的讨论。The Mesozoic Cenozoic tectonics in the border area of eastern Hunan and western Jiangxi provinces is marked by a NNE trending intracontinental strike slip fault system,which is characterized by structural transformation from convergent to divergent strike slip deformation initiated from early Cretaceous.Analyses of structural pattern of this regional fault system and mineralization features of uranium ore deposits hosted in the strike slip faults of various scales indicate that Mesozoic Cenozoic hydrothermal uranium mineralization was directly controlled by NNE trending strike slip faulting.The ore controlling of this fault system is detailed.

关 键 词：铀矿床 热液成矿 走滑断裂 新生代 

分 类 号：P618.140.5[天文地球—矿床学]