| 西藏达龙钨钼矿床地质特征及成矿环境研究 |
| |
| 引用本文： | 刘耀辉,;覃鹏,;张学良,;何国朝,;徐庆鸿,;莫江平,;彭代春.西藏达龙钨钼矿床地质特征及成矿环境研究[J].矿产与地质,2014(3):303-309. |
| |
| 作者姓名： | 刘耀辉 ;覃鹏 ;张学良 ;何国朝 ;徐庆鸿 ;莫江平 ;彭代春 |
| |
| 作者单位： | [1]中国有色桂林矿产地质研究院有限公司,广西桂林541004; [2]广西有色金属集团公司,广西南宁530022; [3]西藏霞鈺矿业开发有限公司,西藏拉萨850000 |
| |
| 基金项目： | 致谢：本文在研究过程中得到了邓贵安教授级高工的指导,在此表示衷心的感谢. |
| |
| 摘 要： | 西藏达龙钨钼矿床位于冈底斯成矿带东段北侧,受达龙区域断裂带控制。矿体呈脉状、板状、囊状产于硅化石榴石板岩、透辉石矽卡岩中。WO3平均品位0.212%;Mo平均品位0.091%;Zn平均品位3.10%。流体包裹体测温结果显示钨钼成矿温度为320℃,铜锌矿化发生在200℃。硫同位素δ34 S测定为3.5‰~5.5‰,说明成矿物质具深源特征。辉钼矿Re-Os年龄测定,模式年龄介于63.2~68.1Ma,成矿发生在喜山早期。钨钼成矿主要与黑云母花岗闪长岩侵位形成的矽卡岩化有关。
|
| 关 键 词： | 钨钼矿床 矽卡岩型 矿床特征 达龙 西藏 |
Geological characteristics and mineralization environment of Dalong W-Mo deposit in Tibet |
| |
| Institution: | LIU Yao-hui, QIN Peng, ZHANG Xue-liang, HE Guo-chao, XU Qing-hong, MO Jiang-ping, PENG Dai-chun (1. China Nonferrous Metal (Guilin) Geology and Mining Co. , Ltd. , Guilin, Guangxi 541004; 2. Guangxi Non-ferrous Metals Group Co. , Ltd. , Nanning, Guangxi 530022; 3. Tibet Xiayu Mining Development Co. , Ltd. , Lhasa, Tibet 850000) |
| |
| Abstract: | Dalong W-Mo deposit in Tibet locates at the northern side of eastern section of Gangdese metallo-genic belt which is controlled by Dalong regional fault zone.The ore-bodies occur in silicified garnet slates and diopside Skarn in veined,slabby and vesiculate shapes.The average grade of WO 3 is 0.212%,while that of Mo is 0.091% and that of Zn is 3.10%.The fluid inclusion thermometry shows that the formational tem-perature of W-Mo is 320℃ while that of Cu-Zn is 200℃.The sulfur isotopeδ34 S is determined in the range of 3.5‰~5.5‰ which indicates that the metallogenic materials are deep seated source.According to the Re-Os dating of molybdenite,its model age is within the range of 63.2 ~ 68.1Ma and its mineralization period is early Himalayan stage.The mineralization of W-Mo is primarily related to skarnization formed from em-placement of biotite granodiorite. |
| |
| Keywords: | W-Mo deposit Skarn type characteristic of deposit Dalong Tibet |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
