地质通报2016，Vol.35Issue(4)：519-523,5.
内蒙古阿巴嘎旗比鲁甘干斑岩型钼矿床辉钼矿Re-Os同位素年龄及其地质意义
Re-Os isotopic dating of molybde-nites from the Bilugangan porphyry Mo deposit in Abag Banner, Inner Mongolia, and its geological significance
摘要
Abstract
In this paper, the authors conducted for the first time Re-Os isotope analysis of molybdenite from the Bilugangan porphy⁃ry Mo deposit in Abag Banner, Inner Mongolia and obtained the molybdenite Re-Os isotope modal ages between 236.9±3.7Ma and 238.7 ± 2.4Ma and weighted average value of 237.9 ± 1.7Ma , which indicate that the mineralization of Bilugangan Mo deposit oc⁃curred in Indosinian period. The average rhenium content of molybdenite is 74.065×10-6, suggesting the source of rhenium was char⁃acterized by mantle-crust mixing. Belonging to a porphyry Mo deposit, the deposit is located within the Slonker-Huolinguole arc-basin system of Da Hinggan Mountains-Inner Mongolia orogenic belt south of Hegenshan fault belt. Controlled by internal or exter⁃nal contact zones, the Mo orebodies are mainly situated inside the biotite granite porphyry and hornstone. The controlling or hosting faults in the contact zones are principally in NW, NE and approximately EW directions, and are filled with quartz veins. The stronger the development of stringer and stockwork quartz veins, the stronger the molybdenum mineralization. Regional researches reveal that Indosinian is one of the most important Mo(W) mineralization stages in Da Hinggan Mountains-Inner Mongolia orogenic belt and the adjacent areas in spite of the fact that this kind of deposit was discovered for the first time in this region. The results obtained by the authors provide important references for the further study of ore-forming regularity in the Slonker- Huolinguole metallogenic belt.关键词
辉钼矿/Re-Os同位素年龄/比鲁甘干钼矿Key words
molybdenite/Re-Os isotope age/Bilugangan Mo deposit分类
天文与地球科学引用本文复制引用
李俊建,赵丽君,唐文龙,付超,李超,屈文俊,张彤,王守光,党智财,周勇..内蒙古阿巴嘎旗比鲁甘干斑岩型钼矿床辉钼矿Re-Os同位素年龄及其地质意义[J].地质通报,2016,35(4):519-523,5.基金项目
中国地质调查局项目（编号1212010561510、1212010811061、1212011120330、12120114001201、1212010781028、1212011085488、121201006000150015）、国土资源公益性行业科研专项（编号200811010）和国家国际科技合作项目 （）
