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J4 ›› 2010, Vol. 18 ›› Issue (5): 12-15.
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ZHANG Fuxin1,ZHANG Wanye2,LI Jianhua2,YUAN Xudong2
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Abstract:
The micro-disseminated gold deposit of Triassic of Qinling orogenic belt has not breakthrough,the discovery of Wenjiangsi gold deposit bring opportunity for this area,the gold belt of study area has been controlled in 10 km,Wenjiangsi gold deposit occurrence in the Low-Triassic slity fine sand-slity shale-carbonaceous shalecarbonaceous marl-limestone thin layer,diagenesis pyrite berry ball contains 0.5% As.Early Mesozonic plagioclase porphyritic granite veins bedding invasion the ore-bearing sediments,and bring the Mo-Bi-Te related components for mineralization.Late progression of ductile-brittle shear zone transformation,the sedimentary ore show schistosity and broken ore belt in the multi-phase and multi-stage activities.The granite veins of tectonic belt form altered rocks,ore-forming hydrothermal form lentils-lens and vein shaped ore body,and it is located in the ductile-brittle tectonic belt.Hydrothermal mineralization has multi-period and multi-stage functional features,mineralization has the features of euhedral-subhedral tiny-dip texture and structure,gold mineral is the pyrite,arsenopyrite and silicified quartz,containing a small amount of stibnite,showing Au-As-Hg-Sb geochemical assemblages.
Key words: Qinling orogenic belt, Carlin-type gold deposit, Wenjiangsi, Shaanxi Province
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ZHANG Fuxin,ZHANG Wanye,LI Jianhua,YUAN Xudong. The Geological Feature of Antimony-Gold Deposit in Wenjiangsi Area,Shaanxi Province[J].J4, 2010, 18(5): 12-15.
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