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老豆金矿床位于甘肃省夏河-合作地区,大地构造位置处于西秦岭造山带西北段,是夏河-合作地区典型的热液脉状金矿床。矿区外围出露的地层主要是二叠系下统大关山群和下三叠统尕日组火山岩,其中大观山群地层被老豆石英闪长斑岩岩株侵入。矿区近SN向断裂构造十分发育,矿体主要受这些断裂构造控制,呈脉状、透镜状
The Laodou gold deposit is located in the Xiahe-Hezuo-Gansu cooperation area. Its geotectonic location is located in the northwestern segment of the West Qinling orogen and is a typical hydrothermal vein-like gold deposit in the Xiahe-Hezuo-Hezuo region. The strata exposed in the periphery of the mining area are mainly the Permian Xiaguan Mountain group and the Lower Triassic Gaari Group volcanic rock, in which the Dashanshan Group strata were invaded by the Laodou quartz diorite porphyry. Near SN faults in the mining area is well developed, and the orebodies are mainly controlled by these faults and are veins and lenticulars