Analysis of the ore-controlling structure of the Shihu gold deposit, Hebei Province and deep-seated ore-prospecting prediction |
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| Authors: | Shuyin Niu Baode Wang Aiqun Sun Chao Chen Zili Wang Baojun Ma Wenxue Wang Xiaoping Jiang Yongli Zhao Yincang Gao Huabin Liu Jianping Qiu |
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| Institution: | [1]College of Resources, Shijiazhuang University of Economics, Shijiazhuang 050031, China [2]Shijiazhuang Integrated Geological Party, Shijiazhuang 050081, China [3]Shihu Gold Mine, Shijiazhuang 050506, China |
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| Abstract: | Under the guidance of the theory of mantle-branch structure-associated metallogenesis and on the basis of the geological characteristics, analysis of the ore-forming and ore-controlling structures, the geochemical characteristics of metallogenesis, the source of ore-forming materials, changes in the physical and chemical conditions of metallogenesis, changes in the vertical width of ore veins, and changes in gold grade of the Shihu gold deposit, the mechanism of its metallogenesis was discussed and the rules of vertical variation of ore veins were summarized in this study. It is pointed out that the orebodies under exploitation at present time should be in the middle and upper portions of gold veins in the Shihu gold mining district. Particularly on the basis of the characteristics of mantle-branch structure-associated metallogenesis, it is indicated that metallogenesis is controlled mainly by such ore-forming conditions as temperature and pressure. Deep-seated ore-forming fluids are characterized mainly by injection and precipitation. So the vein bodies in the adjacent metallogenic structures are of obvious comparability, and there would be great prospects for ore search both at depth and in the periphery of the Shihu gold deposit. Therefore, ore prospecting should be strengthened both at depth and in the peripheries. |
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| Keywords: | mantle-branch structure metallogenesis ore-controlling structure ore-search prospect ore prospecting prediction |
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