地质通报2017，Vol.36Issue(9)：1525-1530,6.
内蒙古乌兰德勒钼铜多金属矿区细粒二长花岗岩SHRIMP锆石U-Pb年龄及意义
SHRIMP zircon U-Pb age of the fine-grained monzonitic granite in the Wulandele molybdenum-copper polymetallic ore deposit of Inner Mongolia and its significance
摘要
Abstract
The Wulandele molybdenum-copper polymetallic deposit in Sonid Left Banner of Inner Mongolia is a large deposit dis-covered recently during the geological survey in the Erlian-Dong Ujimqin Banner metallogenic belt of Inner Mongolia. Ore geology characteristics show that the formation of the molybdenum-copper polymetallic deposit had spatial-temporal and genetic relation-ships with the concealed fine-grained monzonitic granite in this area. In order to reveal the metallogenic regularity in this area,the authors determined the SHRIMP single particle zircon U-Pb age of the fine-grained monzonitic granite. The results show that the weighted average 206Pb/238U age of 131.3±1.6Ma(MSWD=1.7)is consistent with the molybdenite Re-Os age of 134.1±3.3Ma,sug-gesting that the formation age was Early Cretaceous. The result of geological exploration shows that the formation of the deposit was closely related to the concealed Yanshanian fine-grained monzonitic granite. The result of isotopic dating is important for the study of the regularity of ore formation.关键词
细粒二长花岗岩/单颗粒锆石SHRIMPU-Pb年龄/乌兰德勒/中蒙边界Key words
molybdenum-copper/SHRIMP zircon U-Pb age/Wulandele/Sino-Mongolian border分类
天文与地球科学引用本文复制引用
陶继雄,王弢,陈郑辉,唐伟,王任飞..内蒙古乌兰德勒钼铜多金属矿区细粒二长花岗岩SHRIMP锆石U-Pb年龄及意义[J].地质通报,2017,36(9):1525-1530,6.基金项目
中国地质调查局项目《内蒙古达来庙地区矿产远景调查》(编号:矿调[2004]10-1)、《中国成矿体系综合研究》(编号:1212010733803)和内蒙古自治区地质勘查基金项目《内蒙古重要矿产资源潜力评价及区域成矿规律研究》(编号:2006-02-YS01) （编号:矿调[2004]10-1）
