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《GEOLOGY-GEOCHEMISTRY》 1998-04
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ISOTOPE GEOCHEMISTRY AND GENESIS OF MOJIANG GOLD DEPOSIT, YUNNAN

Li Yuan; Jin Shichang; Yu Guangjun(Department of I and Exploration and City Planning, Kunming University of Science and Technology, Kunming, 650093)  
The isotope geochemical characteristics, ore-forming elements association and the composition of fluid inclusions of the Mojiang gold deposit show that the metallogenic material mainly comes from altered ultrabasic rocks, and the ore-forming solution is derived from fluids at depth and magmatic water mixed with meteoric water. The ore-forming process could be described as follows: in the mineralization process gold was leached from the intrusive body and its surrounding rocks by circulating water mixed with mineralizer-rich fluids along the fault at depth, and then the gold in the fluids was precipitated in favorable locations with changing geochemical condition. It is a deposit of the mixed hydrothermal-reworked type.
【Fund】: 国家自然科学基金
【CateGory Index】: P597
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