| 吉林安图刘生店钼矿床辉钼矿Re-Os同位素定年其地质意义 |
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| 引用本文： | 王辉,任云生,赵华雷,鞠楠,屈文俊.吉林安图刘生店钼矿床辉钼矿Re-Os同位素定年其地质意义[J].地球学报,2011,32(6):707-715. |
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| 作者姓名： | 王辉 任云生 赵华雷 鞠楠 屈文俊 |
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| 作者单位： | 吉林大学地球科学学院;吉林大学地球科学学院;吉林大学地球科学学院;吉林大学地球科学学院;国家地质实验测试中心 |
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| 基金项目： | 中国地质调查局项目(编号: 1212011085485)；吉林大学基本科研业务费项目(编号: 200903025) |
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| 摘 要： | 刘生店钼矿是吉林中东部新发现的一个重要斑岩型钼矿床.6件辉钼矿样品Re-Os同位素分析表明:辉铜矿中Re含量为9.88～11.37 μg/g,Os含量为27.68～32.40 ng/g,获得的模式年龄为(168.0±2.3)～(170.8±2.5)Ma,加权平均年龄为(169.36±0.97)Ma,MSWD=0.73,...
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| 关 键 词： | Re-Os同位素定年 辉钼矿 斑岩型钼矿 刘生店钼矿 吉林安图 |
Re-Os Dating of Molybdenite from the Liushengdian Molybdenum Deposit in Antu Area of Jilin Province and Its Geological Significance |
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| WANG Hui,REN Yun-sheng,ZHAO Hua-lei,JU Nan and QU Wen-jun.Re-Os Dating of Molybdenite from the Liushengdian Molybdenum Deposit in Antu Area of Jilin Province and Its Geological Significance[J].Acta Geoscientia Sinica,2011,32(6):707-715. |
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| Authors: | WANG Hui REN Yun-sheng ZHAO Hua-lei JU Nan and QU Wen-jun |
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| Institution: | College of Earth Science, Jilin University;College of Earth Science, Jilin University;College of Earth Science, Jilin University;College of Earth Science, Jilin University;National Research Center of Geoanalysis |
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| Abstract: | The Liushengdian ore deposit is one of the porphyry molybdenum deposits recently discovered in eastern Jilin Province.Re-Os dating of six molybdenite samples collected from typical ores shows that the Re and Os values of samples vary between 9.88 and 11.37μg.g-1 and between 27.68 and 32.40ng.g-1 respectively;the model age ranges from(168.0±2.3)to(170.8±2.5)Ma,with the weighted mean age being (169.36±0.97)Ma(MSWD=0.73),and the isochron age being(185±12)Ma(MSWD=0.72).The results indicate that molybdenum mineralization took place in middle Jurassic,roughly contemporaneous with that of Daheishan and Fuanpu molybdenum deposits,which belong to the Xiao Hinggan Mountains-Zhangguangcai Mountain metallogenic belt.These ore deposits were formed by the large-scale Yanshanian metallogenic activity in the eastern part of northeastern China,influenced by the subduction of the Pacific plate.In addition,the Re content of the molybdenite suggests that the ore-forming materials might have been derived mainly from the crust with the participation of small amounts of mantle materials. |
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| Keywords: | Re-Os dating molybdenite porphyry molybdenum deposit Liushengdian molybdenum deposit Antu area of Jilin province |
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