贵州安龙县戈塘金矿床地质特征及成因探讨

To investigate the clinical geological characteristics and genesis of gold deposits in Guizhou Anlong county Tang Ge

戈塘式金矿属于微细浸染型金矿,以贵州安龙县戈塘大型金矿床为代表,含金地层覆盖在下二叠统茅口组古岩溶侵蚀面上,位于上二叠统龙潭组底部。在峨嵋山玄武岩浆喷溢过程中,由于水下热泉群硅化交代作用,通过含金硫化物结晶析出的方式,形成金矿的工业矿体。燕山期形成的地下热水则由于萃取了这个含金层位中的金并运移到地壳更浅部的上覆地层中形成新一代的金矿化或金矿床。

Getang gold deposit belongs to micro disseminated gold deposit in Guizhou, Anlong county Getang gold deposit is a large, covered in gold bearing strata two Permian Maokou paleo karst erosion surface, located in the upper Permian Longtan Formation bottom two. In the Emeishan basaltic magma eruption process, because the water under the hot springs of silicified metasomatism by auriferous crystallization, the formation of gold ore bodies. The formation of underground hot water in Yanshan period is due to the formation of a new generation of gold mineralization or gold deposit by extracting gold from the gold bearing horizon and migrating to the overlying strata of the crust.