摘要
白牛厂银—多金属矿床位于云南省的南部。其西有个旧锡-多金属矿,东有都龙钨锡—多金属矿,系南岭锡钨成矿带之西延部分。矿床产出于以寒武系为核心的构造隆起内,矿化主要沿不整合接触面上迭加逆冲断层的破碎带内充填分布,对围岩的交代作用不强。在阿尾矿段,存在隐伏的花岗岩,具有宽厚的接触变质晕圈,矿化出现按深度(温度)的分带现象。本文主要通过对矿石矿物的观察分析,划分了矿床的成矿阶段。
The Ag-polymetal ore deposit at Bainiuchang area is situated in the southern part of Mengzi county territory, Yunnan province. The famous Sn-poly-metal ore at Gejiu city is to the west of it, and there is also polymetal ore(W, Sn)at Donlong which locats in the east of Bainiuchang. They are the westward extend part of Nanlin minerogenitic zone(Sn, W). The Bainiuchang ore deposit existed into tectonic upwarping in Cambrian stratigraphic core. The mineralized zone is distributed mainly in the crush belt superimposed on thrust fault along the unconformity contact plane, and the metasomatsis to wall rock was not strong. There is biind granite in Aewi ore block it has a wide and thick contact metamorphic halo, and presented also a mineralized zoning in the deep(temperature). Author of this paper has observed and analysed the ore mineral, and divided the mineralizing stages in ore deposit of Bauiuchang area.
出处
《云南地质》
1990年第4期291-307,共17页
Yunnan Geology
