| 赣南葛廷坑钼矿辉钼矿Re-Os年龄及其地质意义 |
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| 引用本文： | 吴俊华,赵赣,屈文俊,袁承先,龚敏,刘爽,李牟,周雪桂,廖明和,魏俊浩,马振东.赣南葛廷坑钼矿辉钼矿Re-Os年龄及其地质意义[J].地学前缘,2011,18(3):261-267. |
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| 作者姓名： | 吴俊华 赵赣 屈文俊 袁承先 龚敏 刘爽 李牟 周雪桂 廖明和 魏俊浩 马振东 |
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| 作者单位： | 1. 中国地质大学（武汉）， 湖北 武汉 430074
2. 江西省地矿资源勘查开发中心， 江西 南昌 330030
3. 国家地质实验测试中心， 北京 100037 |
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| 基金项目： | 中国地质调查局“全国重要矿产资源潜力预测评价”子项目(1212010733805) |
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| 摘 要： | 赣南葛廷坑钼矿为产在花岗斑岩与围岩内外接触带的中型斑岩型钼矿床。通过对矿区含矿石英脉中7个辉钼矿样品进行Re Os同位素测定，获得等时线年龄及模式年龄的加权平均值分别为(1594±16)和(1588±13) Ma。等时线初始187Os为(0001±0055)ng/g，MSWD=17。葛廷坑钼矿形成于中侏罗世中晚期，其成矿年龄对应于华南中晚侏罗世第二成矿阶段(170～150 Ma)，与区域内160 Ma左右的钨锡矿成矿作用基本一致。区域上华南钼的成矿时间具有连续性，在165～90 Ma均有发生。
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| 关 键 词： | 葛廷坑钼矿 辉钼矿 Re Os同位素 赣南 |
| 收稿时间： | 2010-11-08 |
Re-Os dating of molybdenites from Getingkeng molybdenum deposit of Southern Jiangxi Province and its geological significance |
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| Wu Junhua,Zhao Gan,Qu Wenjun,Yuan Chengxian,Gong Min,Liu Shuang,Li Mou,Zhou Xuegui,Liao Minghe,Wei Junhao,Ma Zhendong.Re-Os dating of molybdenites from Getingkeng molybdenum deposit of Southern Jiangxi Province and its geological significance[J].Earth Science Frontiers,2011,18(3):261-267. |
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| Authors: | Wu Junhua Zhao Gan Qu Wenjun Yuan Chengxian Gong Min Liu Shuang Li Mou Zhou Xuegui Liao Minghe Wei Junhao Ma Zhendong |
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| Institution: | 1. China University of Geosciences(Wuhan)， Wuhan 430074， China;
2. Center of Exploration and Development of Geology and Mineral Resources of Jiangxi Province， Nanchang 330030， China;
3. National Research Center of Geoanalysis， Beijing 100037， China |
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| Abstract: | Located in the inside and outside contact zone of granite porphyry,the Getingkeng molybdenum deposit is a medium-sized porphyry deposit in southern Jiangxi Province.Re-Os isotopic dating of 7 molybdenite samples from the mineralized quartz veins of Getingkeng deposit has yielded a precise isochron age of(159.4±1.6) Ma and a weighted average model age of(158.8±1.3) Ma.The intercept of isochron is(0.001±0.055)ng/g,and the MSWD is 1.7.Getingkeng molybdenum deposit formed in the Mid-Late Middle Jurassic,the mineralization age corresponds to the second mineralization stage(170-150 Ma) in the Late Jurassic of South China,consistent with the tungsten-tin mineralization around 160 Ma within the region.South molybdenum mineralization occurred in a row of 165-90 Ma. |
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| Keywords: | Getingkeng molybdenum deposit molybdenite Re-Os isotope Southern Jiangxi Province |
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