Selenium Enrichment in Cambrian Stratabound Gold Deposits in the Western Qinling Mountains
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P618.51

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This study was supported by the National Natural Science Foundation of China (Grant Nos. 49503048 and 49773197), a Sino-Austrian cooperation project (No. 4880099) and the Postdoctoral Science Foundation of China


Selenium Enrichment in Cambrian Stratabound Gold Deposits in the Western Qinling Mountains
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    摘要:

    Stratabound gold deposits in the western Qinling Mountains occur in Cambrian chert formation composed of carbonaceous chert and carbonaceous slate. The distinctive chert formation provides important grounds for the mineralization and controls on the formation of gold deposits. Study shows that Se is exceptionally higher in both host rocks and gold orebodies. It may be recovered as a valuable component in ores for total utilization, and in some localities even independent Se orebodies (which are mined exclusively for Se) may be delineated. In gold ore Se mainly occurs as independent minerals or in the isomorphous form in sulphides and there is a positive correlation between Se and Au.

    Abstract:

    Stratabound gold deposits in the western Qinling Mountains occur in Cambrian chert formation composed of carbonaceous chert and carbonaceous slate. The distinctive chert formation provides important grounds for the mineralization and controls on the formation of gold deposits. Study shows that Se is exceptionally higher in both host rocks and gold orebodies. It may be recovered as a valuable component in ores for total utilization, and in some localities even independent Se orebodies (which are mined exclusively for Se) may be delineated. In gold ore Se mainly occurs as independent minerals or in the isomorphous form in sulphides and there is a positive correlation between Se and Au.

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Liu Jiajun, Open Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou Zheng Minghua, Chengdu Institute of Technology, Chengdu, Sichuan Liu Jianming, Research Centre of Mineral Resources Exploration, Chinese Academy of Sciences, Beijing Zhou Yufeng, Gu Xuexiang, Zhang Bin, Lin Li, Chengdu Institute of Technology, Chengdu, Sichuan and Lu Wenquan Institute of Comprehensive Utilization of Mineral Resources, Chengdu, Sichuan .1997. Selenium Enrichment in Cambrian Stratabound Gold Deposits in the Western Qinling Mountains[J]. ACTA GEOLOGICA SINICA(English edition),71(4):

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