黔西南卡林型金矿床形成特殊性研究

Study on forming particularity of Carlin-type gold deposits in southwestern Guizhou province

通过对黔西南卡林型金矿床形成特殊性研究,显示:黔西南金矿位于特殊的大地构造位置;峨眉地幔热柱活动对该区构造、岩浆活动产生极大影响;幔源玄武岩浆提供了黔西南卡林型金矿床形成所需金的物质来源;晚二叠世—三叠纪时期的峨眉地幔热柱活动形成二叠系龙潭组、三叠系新苑组、许满组、边阳组等含金建造;燕山期峨眉地幔热柱再次活动产生的成矿动力作用最终成就了黔西南卡林型金矿床的形成。

A study on forming particularity of Carlin-type gold deposits in southwestern Guizhou Province shows that southwestern Guizhou Province belongs to a particular part in tectonics ; Emei mantle plume activity greatly influenced the structure and magma activity in the area; Basalt magma from mantle offered the gold material to form Carlintype gold deposit in this area; Emei mantle plume activity in Late Permian Epoch to Triassic Period formed some bearing gold formations- Longtan formation of Permian System and Xinyuan formation, Xuman formation, Bianyang formation of Triassic System; a forming process and power in response to the Emei mantle plume activity during the Yanshanian period led to form Carlin-type gold deposit in southwestern Guizhou Province.