湖南麻阳铜矿成矿机制探讨

对麻阳铜矿成矿物质来源、成矿流体特征以及成矿作用进行了分析，认为初始成矿物质主要来自沅麻盆地南东侧的雪峰古陆；地下热卤水对成矿起有改造作用，成矿过程是地下热卤水将初始成矿物质溶离出来，并运移到有利的岩性－构造部位，在弱碱性还原条件下逐渐结晶成矿。

A STUDY ON METALLOGENIC MECHANISM FOR MAYANG COPPER DEPOSIT,HUNAN

Based on the study of origins of metallogenic materials, features of metallogenic fluid andmetallization in Mayang coppet deposit, the author draws a conclusion that the original metallogenicmaterials mainly came from the Xuefeng ancient continent situated at the edge of the Yuanma basin,and subsurface hot brine played an important part in metallization. In the metallogenic process theoriginal metallogenie materials dissolved in the subsurface hot brine and migrated tO some lithic-tectonic posihons, and then gradually crystallized to form the deposit under the conditions of weakbasicity and reduction.