铧厂沟金矿床位于勉 -略 -宁三角地带成矿有利部位。矿区出露中下泥盆统三河口群和中上元古界碧口群。矿床内发育的韧性剪切带经历了右行 (韧性 )—左行 (韧脆性 )—右行 (脆性 )多期 (次 )活动。矿化受透镜状细碧岩控制 ,分布于韧性剪切带之中。矿体蚀变强烈 ,新生矿物定向排列 ,脉体中矿物具亚颗粒、变形纹、变形条带等粒内变形特征。同位素地球化学及稀土分析结果表明 ,基性火山岩是金的矿源层。金矿的形成富集与韧性剪切带多期 (次 )活动密切相关 ,尤其是韧脆性变形期。因此 ,该矿床可称之为剪切带蚀变岩型金矿床 ,具有一定的找矿潜力。除了蚀变细碧岩型等矿石类型之外 ,还应在韧 -脆性控矿剪切带内注意寻找蚀变钙质糜棱岩型和硅化石英粗糜棱岩型金矿石。 Hua Chang Gou gold deposit is located in Mian - slightly - Ning Triangle belt metallogenic site. The outcrops of Middle-Lower Devonian Sanhekou Group and Middle-Upper Proterozoic Bikou Group appear in the mining area. The ductile shear zone developed within the deposit undergoes a rightward (ductile) - left (ductile) - right (brittle) multi-phase (secondary) activity. Mineralization is controlled by lenticular billet, distributed in the ductile shear zone. Ore alteration is intense, new minerals are arranged in orientation, and minerals in the veins have intragranular deformation features such as sub-grains, deformation lines and deformation bands. Isotope geochemistry and rare earth analysis results show that the basic volcanic rocks are gold source layer. The formation and enrichment of gold deposits are closely related to the multi-period (secondary) activities of ductile shear zones, especially the ductile-brittle deformation period. Therefore, the deposit can be called a shear zone altered rock type gold deposit, with a certain prospecting potential. In addition to alteration of spireite type ore types, attention should also be given to the alteration calcareous mylonite type and silicified quartz rough mylonite type gold ore within the ductile-brittle ore-control shear zone.