Primary Halos Superposed Characteristics of the Suolong Gold Deposit in Western Qinling and Its Implication for Deep Prediction
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摘要: 通过系统采集钻孔原生晕样，对锁龙金矿床进行详细的原生晕研究，利用C.B.格里戈良提出的元素分带指数计算方法，探讨了锁龙金矿床原生晕叠加轴向分带序列。经分析研究，其分带序列为W-Hg-Sb-Au-Ag-Pb-Zn-Cu-As-Mo，在2 600m标高时As/Mo值高，在2 500m标高时As/Mo值低，在2 300m标高时又高，反映了矿脉群经多次叠加，并预测深部有盲矿体。结合构造叠加晕特征，认为在北北东向断裂构造与北北西向断裂构造交汇部位的79线-115线为锁龙矿区成矿有利部位。Abstract: The Suolong gold deposit is located in Western Qinling, Gansu Province. The primary halos characteristics of the Suolong gold deposit has been studied in this paper. Through using the element zoning index calculation method that proposed by C. B. Grigoryan, the vertical zoning sequence and superimposed characteristics of primary halos have been discussed. The results show that the zoning sequence of this deposit is W-Hg-Sb-Au-Ag-Pb-Zn-Cu-As-Mo. The As/Mo ratios show high values at the altitude of 2.6km and 2.3km, but they have low values at 2.5km, showing multiple superimposed characteristics of ore vein group, and predicting that one or more concealed orebodies occur in the deep. Combined with the features of structural superimposed halos, it's suggested that the exploration line 79-115 in the intersection between NNE and NNW-direction faults are favorable metallogenetic areas in the Suolong gold deposit.
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