陕西省柞水县盆儿沟金矿矿床地质特征及找矿规律研究

Study on Geological Characteristics and Prospecting Rule of the Benergou Gold Deposit in Zhashui County, Shaanxi Province

盆儿沟金矿地处秦岭褶皱系北秦岭加里东褶皱带南部,受丰北河区域性大断裂影响,区域岩浆活动强烈,成矿地质条件良好,为重要的贵金属、多金属成矿区,是寻找Au、Cu、Fe、Pb、Zn、Mo等多金属的有利远景区。区内已发现Au-Ⅰ、Au-Ⅱ、Au-Ⅳ三条金矿体,主要赋存于秦岭群第七岩性段黑云斜长片麻岩中的构造蚀变带中,金与硅化、黄铁矿的粒度关系密切,矿床总体属中低温热液石英脉-构造蚀变岩型金矿。

The Benergou gold deposit is located in the southern part of the Caledonian fold belt of the North Qinling fold system. Influenced by the Fengbeihe regional fault, the regional magmatic activity is strong, and the metallogenic geological conditions are good. It is an important precious metal and polymetallic metallogenic area,and it is a favorable prospect area for the exploration of Au, Cu, Fe, Pb, Zn, Mo and other polymetals.Three gold orebodies, Au-i, Au-ⅱ and Au-ⅳ, have been found in the area, mainly occurring in the tectonic alteration zone of the black plagioclase gneisses in the seventh lithologic member of The Qinling Group. Gold is closely related to the grain size of silicified and pyrite. The deposit generally belongs to the middle-low temperature hydrothermal quartz vein-tectonic alteration rock type gold deposit.