地质与勘探2018，Vol.54Issue(3)：544-551,8.
内蒙古羊场钼铜矿床硫同位素组成及其地质意义
Sulfur Isotope Composition of the Yangchang Molybdenum-Copper Deposit in Inner Mongolia and its Geological Significance
摘要
Abstract
The Yangchang Mo-Cu polymetallic deposit of the Xilamulun molybdenum metallogenic belt is located in the east part of the Central Asian-Mongolian belt of Inner Mongolia. Its major ore bodies are associated spatially with the Late Yanshanian medium-coarse biotite monzogranite. Molybde-nite, chalcopyrite,pyrite,galena and sphalerite are the main metallic minerals,which occur naturally in both quartz vein type and breccia type ores. The δ34S values of 14 sulfides from the main metallic minerals are concentrated in a narrow range near 0‰,from -1.664‰to 1.293‰,with an average val-ue of 0.516‰,and the δ34S values are typical of magmatic sulfur,indicating that the mineralization at the Yangchang deposit was magmatic in origin. Relative to molybdenum deposit, the Yangchang Mo-Cu polymetallic deposit have such a wide variety of metallic minerals and the δ34S values are con-centrated in a narrow range near 0‰, indicative of a primitive mantle source of the Yangchang deposit.关键词
西拉沐伦钼矿带/钼铜多金属矿/硫同位素/羊场钼铜矿床/内蒙古Key words
Xilamulun molybdenum metallogenic belt/Mo-Cu polymetallic deposit/sulfur isotope/Yangchang Mo-Cu deposit/Inner Mongolia分类
天文与地球科学引用本文复制引用
张作伦,周起忠,刘建明,曾庆栋..内蒙古羊场钼铜矿床硫同位素组成及其地质意义[J].地质与勘探,2018,54(3):544-551,8.基金项目
国土资源部国土资源战略研究重点实验室开放课题:全国矿产资源勘查与开发利用监测监管信息化建设项目(编号:DD20160357)资助. （编号:DD20160357）
