中国南方砂(页)岩铜矿床硫同位素地球化学研究

以中国南方著名的滇中和会理盆地砂页岩铜矿床宏观地质特征和硫同位素分析数据为基础，系统地研究了我国南方砂页岩铜矿床硫同位素组成特征。首次用筛分模式、分馏效应对硫同位素总体进行评分，结果表明硫主要有三个来源：有机质分解或还原流酸盐，占11．3％；地下水，占42．5％；热卤水，占46．2％。本研究为该类型矿床的成因、成矿地球化学环境及指导区域找矿勘探等提供了重要依据。

SULFUR ISOTOPE GEOCHEMISTRY OF SANDSTONE (SHALE)-HOSTED COPPER DEPOSITS IN SOUTHERN CHINA

On the basis of the macroscopic geological features and sulfur isotope data of sandstone(shale)hosted copper deposits in the famous Dianzhong and Huili basins in southern China, the paper systematically studies the sulfur isotopic characteristics of sandstone (shale ) - hosted copper deposits in southern China, The screening model and fractionation effect are used for the first time to screen the bulk sulfur isotopes and a conclusion is drawn that the sulfur has three main sources: organic decomposition or sulfate reduction, which accounts for 11. 3 %; groundwater, 42. 5 %; and hot brine, 46. 2 %. This study has provided important clues to the ore genesis, metallogenetic geohemical environment and regional prospecting of ore deposits of similar types.