闽西南地区块状硫化物矿床的喷流-沉积成矿作用

Jet-flow and Sediment Mineralization of Massive Sulfide Deposits in Southwestern Fujian

通过对闽西南地区石炭纪—早二叠世主要块状硫化物矿床的区域成矿背景、贮矿层位特征以及矿石矿物成分、结构构造,硫同位素地球化学特征、成矿温度等分析研究,指出该地区石炭纪—早二叠世块状硫化物矿床的形成多与海底火山活动有关,贮矿层中伴有典型的喷流沉积岩—硅质岩,并提出闽西南地区块状硫化物矿床存在海底喷流-沉积成矿作用的新认识。

Based on the characteristics of regional metallogery background and ore-bearing layers, mineral component and structures, sulfur isotopic geochemistry and ore-forming temperatures of major Carboniferous to Early Permian massive sulfide deposits in Southwestern Fujian, it is considered that there are relations between the formation of Carboniferous to Permian massive sulfide deposits and the submarine volcanic activities in the surveyed area, accompanied by a typical jet-flow sedimentary rocks and silicalite in the ore-bearing layers. It is considered that there exists the submarine jet-flow and sediment mineralization in the massive sulfide deposits of Southwestern Fujian.