| 张作伦.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 |
| 内蒙古羊场钼铜矿床硫同位素组成及其地质意义 |
| Sulfur isotope compositions of Yangchang molybdenum-copper deposit in Inner Mongolia and its geological significance |
| 投稿时间：2017-10-18 修订日期：2018-03-06 |
| DOI：10.12134/j.dzykt.2018.03.010 |
| 中文关键词: 西拉沐伦钼矿带 钼铜多金属矿 硫同位素 内蒙古 |
| 英文关键词: Xilamulun molybdenum metallogenic belt, Mo-Cu polymetallic deposit, sulfur isotope, Inner Mongolia |
| 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 |
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| 中文摘要: |
| 内蒙古西拉沐伦钼矿带羊场钼铜多金属矿床位于中亚-蒙古巨型造山带东段，矿体主要产于燕山晚期中粗粒黑云母二长花岗岩体中，矿体与岩体关系密切，矿石类型包括石英脉型和角砾岩型两类，矿石中金属矿物主要有辉钼矿、黄铜矿、黄铁矿、方铅矿、闪锌矿。14件金属硫化物硫同位素δ34S值变化范围集中于-1.664‰~1.293‰，平均0.516‰，极差较小，具岩浆硫特征。相对单钼矿床，羊场钼铜矿床硫化物组成更为丰富，硫同位素更接近于0‰，主要受深源岩浆制约。 |
| 英文摘要: |
| 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. Molybdenite, chalcopyrite, pyrite, galena and sphalerite are the main metallic minerals, which occur naturally in both the 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 value of 0.516‰, the δ34S values is 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 concentrated in a narrow range near 0‰, these suggested a primitive mantle derivation for sulfur of Yangchang deposit. |
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