| 铜陵大团山铜(钼)矿床辉钼矿赋存状态及成因意义 |
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| 关键词:molybdenite modes of occurrence EMPA Shizishan orefield Datuanshan Cu (Mo) deposit |
| 基金项目:国家自然科学基金项目(编号: 49873016)；高等学校博士学科点专项基金(编号: 20070284011) |
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| A Study of the Modes of Occurrence of Molybdenite in the Datuanshan Copper (Molybdenum) Deposit in Tongling: Implications for the Origin of the Molybdenite |
| Molybdenum orebodies of various sizes are associated with the Datuanshan stratiform copper deposit. The main orebody principally exists in hornfels with skarns and molybdenum-bearing black shale. The grains of the molybdenite have always been so tiny that it is impossible to recognize them either with naked eye or even under a microscope. With the aid of an electron microprobe, the authors managed to identify the molybdenite for the first time in the ore rocks. The molybdenum exists in the form of molybdenite, and the micron-sized scale-shaped molybdenite grains are distributed in the quartz-calcite veins that cut through the skarns and black shale. This type of quartz-calcite veins, which formed after the skarn and black shale, were usually produced by magmatic-hydrothermal processes. Thus the molybdenite mineralization was probably derived from magmatic-hydrothermal fluids. The Re-Os ages of molybdenite must indicate the time of magmatic-hydrothermal mineralization in the orefield. |
| YANG Xiao-nan,XU Zhao-wen,WANG Yun-jian.2017.A Study of the Modes of Occurrence of Molybdenite in the Datuanshan Copper (Molybdenum) Deposit in Tongling: Implications for the Origin of the Molybdenite[J].Acta Geoscientica Sinica,38(2):169-176. |
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