青海满丈岗金矿控矿因素及找矿靶区分析

满丈岗金矿已发现2条工业金矿体、19条金矿化体,1:5万地球化学水系沉积物测量圈出75 km2异常区、1:1万土壤测量圈出112×10-9金异常多处,为寻找金矿体大致指明了方向。目前,开采的M4、M11矿体位于AP-2异常,东北部及东部分别是AP-4、AP-5异常,由于以往注重采矿而忽视了地质勘查工作,导致AP-4、AP-5异常未能有大的突破。金矿石成因类型为石英脉型和破碎蚀变岩型。金以明金、微细粒金形式存在。根据1:1万土壤地球化学测量结果和成矿条件综合分析,确定找矿靶区Ⅰ、Ⅱ,通过工程验证有望找到大型金矿。

Analysis on the Ore-controlling Factors and Prospecting of Manzhanggang Gold Mine

Manzhanggang gold deposit found two gold orebodies,industrial 19 gold,1 000 stream sediment survey geochemical anomaly area,75 km2 circle circle 1 000 soil survey 112×10-9 gold anomalies,looking for more gold orebodies roughly the direction.At present,the ore mining in M11,M4,AP-2 abnormal,northeast and eastern respectively is AP-4,AP-5 anomalies owing to the neglect of mining and prospecting,AP-4,AP-5 abnormal failed major breakthrough.Gold mining types： quartz vein type,broken altered rock type.The state of gold in gold,form the microgranular gold.Based on 1 000 soil geochemistry measurement results and metallogenic conditions comprehensive analysis,determine the oreprospecting target area Ⅰ,Ⅱ,through the engineering verification is expected to find large gold.