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QIN Yan, MEI Yuping, WANG Denghong, ZHANG Jian, WU Libin. Re-Os Isotopic Dating of Molybdenite from the Langyashan Copper Deposit in Chuzhou of Anhui Province and Its Geological Significance[J]. Rock and Mineral Analysis, 2009, 28(3): 259-264.
Citation: QIN Yan, MEI Yuping, WANG Denghong, ZHANG Jian, WU Libin. Re-Os Isotopic Dating of Molybdenite from the Langyashan Copper Deposit in Chuzhou of Anhui Province and Its Geological Significance[J]. Rock and Mineral Analysis, 2009, 28(3): 259-264.
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Re-Os Isotopic Dating of Molybdenite from the Langyashan Copper Deposit in Chuzhou of Anhui Province and Its Geological Significance

  • 1.

    Graduate School of Chinese Academy of Geological Sciences

  • 2.

    Yichang Institute of Geology and Mineral Resources, China Geological Survey

  • 3.

    Insititute of Mineral Resources, Chinese Academy of Geological Sciences

  • 4.

    Graduate School of Chinese Academy of Geological Sciences

  • 5.

    Geological Survey of Anhui Province

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  • Received Date: January 31, 2009
  • Revised Date: March 14, 2009
    Abstract
  • A precise Re-Os age is given for the Langyashan copper deposit in Chuzhou. The model age for five molybdenite samples from the deposit varies from (128.9±1.8) Ma to (130.3±1.9) Ma and the isochron age is (128.6±2.2) Ma, MSWD=0.45. The results indicate that the origin of the deposit is from regional tectno-magmatic activities during the early cretaceous period. The molybdenites from the Langyashan copper deposit have a very high Re content, which indicates that the deposit originated from the mixing of the crust and the mantle sources with the mantle as a primary source.
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