Construction of Prediction Geological Model of Xiaobaishitou East skarn W-Mo Deposit in Eastern Tianshan
The Xiaobaishitou East W-Mo deposit is a typical skarn deposit.The ore body is strictly controlled by the garnet skarn contact zone with biotite granodiorite.Based on field work,microscopic observation,and whole rock major and trace elements analysis,the geological characteristics of the mining area are systematically summarized.The ore-forming intrusion is intermediate-felsic,and classify as calc-alkaline series.It belongs to Ⅰ type-granite with metalumi-nous feature.Considering other geological records,the intrusions are suggested to be formed in the continental arc set-ting.Comparing the Xiaobaishitou tungsten deposit,the mineralization process in this area is divided into five stages:in-cluding early skarn stage(endoskarn stage),late skarn stage(exsoskarn stage),oxide stage,early sulfide stage,late sul-fide-carbonate stage.Based on the ore-forming geological body,ore-forming structure,ore-forming structural plane,and ore-forming process characteristics,a"trinity"geological model for prospecting and prediction of the Xiaobaishitou East Tungsten Molybdenum Deposit has been preliminarily established,Through analysis,it is believed that the Xiaobaishi-tou East Mining Area has great potential for prospecting.
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