云南锑(金)成矿带划分及有关成矿问题讨论  

THE DIVISION OF SB(AU) METALLOGENETIC ZONE AND DISCUSSION OF RELATED METALLOGENETIC PROBLEM OF YUNNAN

作　　者：俞国芬 薛步高[2] 俞开基 

机构地区：[1]云南省有色地质局,昆明650051 [2]云南省乡镇企业局,昆明650011

出　　处：《云南地质》2009年第1期8-15,共8页Yunnan Geology

摘　　要：云南可划分11个锑(金)成矿带(区)。Sb-Au属同一成矿系列(Sb略晚),二者常相伴产出。滇东坡脚组(D1p)与滇西三合洞组(T3s),同为锑矿矿源层。滇东南与黔西区玄武岩喷溢早期的大厂层(P3d)、主期玄武岩组(P3β)、晚期龙潭组(P3l),三者含Sb、Au背景值远高于全球玄武岩,构成统一的Sb—Au矿源层(岩),在有利构造条件下,产出Sb矿(伴生Au)、Au矿(伴生Sb)或二者共存(广南堂上),其成因都与幔源玄武岩喷溢作用有关。Yunnan province can be belong to the same metallogenetic series divided into 11 Sb （Au） metallogenetic zones. Sn- Au （Sb slightly later）, which are commonly in paragenesis. The Pojiao Formation of East Yunnan and the Sanhedong Formation of West Yunnan are the Sb ore source beds. In SE Yunnan and W Guizhou, the Sb, Au background in the Dachang bed （P2d） of earlier period of basalt effusion, basalt formation of main period （P2β） and the later Longtan Formation （P2l） are further higher than that of the basalt in the world, which form the united Sb - Au ore source bed （rock）. And under the advantageous structural conditions, Sb deposit （ paragenetic Au）, Au deposit （paragenetic Sb） or the existence of Sb together with Au （Tangshang, Guangnan） are formed. The genesis of them is related with the effusion of basalt of mantle source.

关 键 词：新划分方案 锑(金)成矿带 矿源层探讨 锑金玄武岩 云南 

分 类 号：P618.66[天文地球—矿床学]