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银洞沟银金矿床位于扬子地台北缘武当推覆体西部，产于武当群变火山岩组与变沉积岩组间的顺层型韧性剪切带中，与构造变形密切相关。晋宁期的伸展作用产生了顺层型韧性剪切带，韧性变形变质作用促使原岩中银金等贵金属、多金属元素活化迁移，随剪切变形变质热液在强应变带中沉淀，形成初始矿源层。印支期的陆陆碰撞作用，促成不同层次面型剪切带岩石褶皱、韧脆性推覆，成矿元素从初始矿源层中再次活化、运移，随着沿褶皱轴面劈理发育的烟灰色糜棱岩化石英脉的形成，沉淀富集于石英脉中，形成银金矿床。脆性变形的叠加，使含矿石英脉产生扭动，促使成矿元素的局部富集，形成透镜状或板状矿体。成矿元素的垂直分带是由构造环境的变化导致成矿元素的叠生作用而形成的。多硅白云母及白云母年龄的测定表明该矿床的成矿期为印支期。
The Yindonggou silver-gold deposit is located in the western part of the Wudang thrust nappe on the northern margin of the Yangtze platform and is produced in the bedding ductile shear zone between the volcanic rocks and metasedimentary rocks of the Wudang Group, which is closely related to the tectonic deformation. The extension of Jinning period resulted in a bedding ductile shear zone. The ductile deformation and metamorphism promoted the activation and migration of silver and gold and other precious metals and polymetallic elements in the original rock, and formed the initial precipitation with the shear deformation metamorphic hydrothermal solution in the strong strain zone Source layer. During the Indosinian continent-continent collision, the rock folds and ductile nappe at different levels of facies-cut zones were promoted, and the ore-forming elements reactivated and migrated from the initial source bed. As the soot developed along the folds, Mylonite fossilized quartz vein formation, precipitation enriched in quartz veins, the formation of silver-gold deposits. Superposition of brittle deformation, the ore-bearing British vein twist, prompting the local enrichment of ore-forming elements to form a lenticular or plate-like ore body. The vertical zonation of ore-forming elements is formed by the superimposition of ore-forming elements caused by the change of tectonic environment. The age determination of picei and muscovite indicates that the metallogenic stage of this deposit is Indosinian.