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| 吉林大黑山超大型钼矿辉钼矿铼-锇同位素定年及其地质意义 | |
| 引用本文： | 王成辉,松权衡,王登红,李立兴,于城,汪志刚,屈文俊,杜安道,应立娟.吉林大黑山超大型钼矿辉钼矿铼-锇同位素定年及其地质意义[J].岩矿测试,2009,28(3):269-273. |
| 作者姓名： | 王成辉 松权衡 王登红 李立兴 于城 汪志刚 屈文俊 杜安道 应立娟 |
| 作者单位： | 1. 中国地质科学院矿产资源研究所,北京,100037 2. 吉林省地质调查院,吉林,长春,130061 3. 国家地质实验测试中心,北京,100037 |
| 基金项目： | 国土资源地质大调查项目，中国成矿体系综合研究项目 |
| 摘 要： | 吉林大黑山钼矿位于吉黑成矿省,是20世纪50年代发现的一超大型斑岩型钼矿床。文章首次对采自矿床不同类型矿石中的辉钼矿进行了铼-锇同位素定年,获得等时线年龄为(168.2±3.2)Ma,其加权平均方差(MSWD)为0.56,表明大黑山钼矿主要形成于燕山早期。结合该区域其他钼矿的成矿年龄,燕山早期可能为吉林中部钼矿的成矿集中期。根据辉钼矿中的铼含量及矿床硫同位素特征表明,矿床的成矿物质来源为壳幔混源。矿床的形成可能与谷太平洋板块的俯冲有关,构造作用与岩浆作用的耦合是成矿的关键因素。 |
| 关 键 词： | 大黑山钼矿 辉钼矿 铼-锇同位素定年 成矿过程 |
| 收稿时间： | 2009/2/10 0:00:00 |
| 修稿时间： | 2009/3/16 0:00:00 |
Re-Os Isotopic Dating of Molybdenite from the Daheishan Molybdenum Deposit of Jilin Province and Its Geological Significance |
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| WANG Cheng-hui,SONG Quan-heng,WANG Deng-hong,LI Li-xing,YU Cheng,WANG Zhi-gang,QU Wen-jun,DU An-dao,YING Li-juan.Re-Os Isotopic Dating of Molybdenite from the Daheishan Molybdenum Deposit of Jilin Province and Its Geological Significance[J].Rock and Mineral Analysis,2009,28(3):269-273. | |
| Authors: | WANG Cheng-hui SONG Quan-heng WANG Deng-hong LI Li-xing YU Cheng WANG Zhi-gang QU Wen-jun DU An-dao YING Li-juan |
| Institution: | Institute of Mineral Resources Chinese Academy of Geological Sciences;Geological Survey of Jilin Province;Institute of Mineral Resources Chinese Academy of Geological Sciences;Institute of Mineral Resources Chinese Academy of Geological Sciences;Geological Survey of Jilin Province;Geological Survey of Jilin Province;National Research Center for Geoanalysis;National Research Center for Geoanalysis;Institute of Mineral Resources Chinese Academy of Geological Sciences |
| Abstract: | The Daheishan molybdenum deposit is a large-scale porphyry molybdenum deposit discovered in 1950s in Jilin Province. This study provides a high-precision Re-Os isotopic dating for ten molybdenite separated from the different ore types with an isochron age of (168.2±3.2) Ma (MSWD=0.56). The results indicate that the deposit was formed in the early of Yanshanian period. The content of element Re from the molybdenite and S isotope composition from the pyrites show that the ore-forming materials may come from mixed crustal and mantle sources. |
| Keywords: | the Daheishan molybdenum deposit molybdenite Re-Os isotopic dating metallogenic process |
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