摘要
云南广南县格乍金矿主要受矿区F_1、F_3两条北西向展布的断层构造带夹持和控制,主要矿体赋存于下泥盆统坡松冲组上段(D)_1ps^2泥质粉砂岩之层间构造破碎带中,矿化蚀变主要有硅化、黄铁矿化、毒砂化、锑矿化,局部见臭葱石化。矿床成因属中-低温热液或热水溶液充填-交代微细粒浸染型金矿床。
Gezha Au deposit in Guangnan,Yunnan is mainly sandwiched between and controlled by 2 NW fault structure zones in the orefield.The main orebody is in the interbed fracture zone of Lower Devonian Posongchong Formation Upper Member(D1ps^2)muddy siltstone.The main metallogenesis alterations are silisification,pyritization,arsenopiritization,Sb metallogenesis,locally scoroditization.It is a middle-low T hydrothermal or heat water solution filling-metasomatism micro fine grained disseminated Au deposit.
作者
苏泰民
吕佳
徐兴业
SU Tai-min;LU Jia;XU Xing-ye(Yunnan Institute of Geosiences,Kunming 650051;Yunnan Exploration Institute of Geology & Mineral Resources,Kunming 650051)
出处
《云南地质》
2019年第1期99-103,共5页
Yunnan Geology
关键词
构造控矿
热液充填-交代型矿床
云南广南格乍
Ore Control of Structure
Hydrothermal Filling Metasomatism Deposit
Gezha,Guangnan,Yunnan