Dagoucao gold deposits in Xunyang county is a new breakthrough for polymetallic mineralization prospecting in the Qinling orogenic belt in recent years. In this paper, take the mining geology as the starting point, we analyzed the geological structures of deposits, ore-bearing wall-rock alteration, mineral characteristics, genesis, ore-controlling factors, etc. , and proposed that the large trench cause of gold deposits is a hydrothermal sedimentary origin-transformation type gold deposits, and summarized the prospecting marks.%陕西旬阳县大沟槽金矿床的发现是近年来在秦岭造山带镇旬贵多金属成矿带找矿的新突破,以矿区地质为切人点,深入分析了矿床地质构造、含矿围岩蚀变、矿石特征、矿床成因和控矿因素等特征,从而提出了大沟槽金矿床成因类型属热水沉积-改造型金矿,并总结了找矿标志.
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