地质通报2017，Vol.36Issue(8)：1407-1416,10.
江西新余良山钼矿锆石U-Pb和辉钼矿Re-Os年龄
Zircon U-Pb and molybdenite Re-Os dating of the Liangshan Mo deposit in Xinyu City, Jiangxi Province
摘要
Abstract
The Liangshan molybdenum deposit was found in the western region of the Wugongshan-Qianshan subzone a few years ago.Based on an analysis of the mineralization features of the deposit,the authors determined LA-ICP-MS zircon U-Pb ages for the ore-bearing rocks in the Liangshan deposit.U-Pb dating of zircon by LA-ICP-MS reveals that the intrusion age of the Liangshan porphyry granite is 168.2±2.3Ma.The 187Re and 187Os values of molybdenum from the molybdenum deposit were determined by the Inductively Coupled Plasma Mass Spectrometry (ICP-MS).Re-Os isochron of molybdenum suggests that the metallogenic epoch of the deposit is 168.9±1.4Ma,indicating that this deposit had a close relation with its host rocks,the magmatic activity had a close relationship with ore-bearing hydrothermal activities,and magmatic activity was an important factor for the formation of the Liangshan molybdenum deposit.The metallogenic time of the Liangshan molybdenum deposit is consistent with south China first stage large-scale polymetallic mineralization of Yanshanian period (170Ma).The Liangshan molybdenum deposit was formed in the same regional metallogenic setting and resulted from regional tectonic magmatism,as a part of the South China Yanshanian mineralization.关键词
锆石U-Pb年龄/辉钼矿Re-Os年龄/斑岩型钼矿床/良山/钦杭成矿带Key words
zircon U-Pb age/molybdenite Re-Os age/porphyry molybdenum deposit/Liangshan/Qinhang metallogenic belt分类
天文与地球科学引用本文复制引用
伍俊杰,陈正乐,陈瑞莉,潘家永,韩凤彬,付蕾,沈滔..江西新余良山钼矿锆石U-Pb和辉钼矿Re-Os年龄[J].地质通报,2017,36(8):1407-1416,10.基金项目
国家自然科学基金项目《天山造山带中—新生代再造过程与砂岩型铀矿成矿作用》(批准号:U1403292)、中国地质调查局项目《矿田构造研究方法综合集成》(编号:121201120936)和“十二五”国家科技支撑计划项目《西南天山金锑矿成矿系统与靶区优选评价》(编号:2015BAB05B04-01) （批准号:U1403292）
