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云南锑(金)成矿带划分及有关成矿问题讨论
引用本文:俞国芬,薛步高,俞开基.云南锑(金)成矿带划分及有关成矿问题讨论[J].云南地质,2009,28(1):8-15.
作者姓名:俞国芬  薛步高  俞开基
作者单位:1. 云南省有色地质局,昆明,650051
2. 云南省乡镇企业局,昆明,650011
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。

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

THE DIVISION OF SB (AU) METALLOGENETIC ZONE AND DISCUSSION OF RELATED METALLOGENETIC PROBLEM OF YUNNAN
YU Guo-fen,XUE Bu-gao,YU Kai-ji.THE DIVISION OF SB (AU) METALLOGENETIC ZONE AND DISCUSSION OF RELATED METALLOGENETIC PROBLEM OF YUNNAN[J].Yunnan Geology,2009,28(1):8-15.
Authors:YU Guo-fen  XUE Bu-gao  YU Kai-ji
Institution:YU Guo-fen XUE Bu-gao YU Kai-ji ( 1. Yunnan Bureau of Nonferrous Geology, Kunming 650051 ;2. Yunnan Administration Bureau of Town and Township Enterprises, Kunming 650011 )
Abstract: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.
Keywords:New Division Program  Sb (Au) Metallogenetic Zone  Discussion about Ore Source Bed  Relationship of Sb and Au with Basalt  Yunnan
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