地质与勘探2012，Vol.48Issue(2)：237-249,13.
云南东川人占石铜矿床地质特征及成因研究
A Study on Geological Characteristics and Genesis of the Renzhanshi Copper Deposit in the Dongchuan area, Yunnan Province
肖晓牛 1张少云 1鞠昌荣 2张晓坤 1游奔 1易飞 1邓辉1
作者信息
- 1. 江苏省有色金属华东地质勘查局资源调查与评价研究院,江苏南京210007
- 2. 江苏省有色金属华东地质勘查局资源调查与评价研究院,江苏南京210007／云南金山矿业有限公司,云南东川654100
- 折叠
摘要
Abstract
The Renzhanshi copper deposit in central Yunnan lies in the Proterozoic copper-polymetallic belt of Sichuan and Yunnan Provinces. It is a new resource area explored and exploited by East China Mineral Exploration and Development Bureau for Non-ferrous as well as Yunnan Jinshan Min- ing, Co. Ltd. This paper mainly presents geological characteristics of the orebody, petrological and mineralogical characteristics of copper ore, mineral for- mation order and symbiotic, and accountable relationship. Based on these real data of the deposit, and in combination with general comparative study, the genesis of the Renzhanshi copper deposit has been discussed. The study shows that this copper deposit occurs in off-white thick-bedded dolomite of the Qinglongshan Formation,enriched by hydrothermal alteration in the Jinning period after metamorphism of ore beds in a rift sedimentary basin environment of the Middle Proterozoic. It can be attributed to the ＂Dongehuan type＂ that is sedimentary-metamorphic superimposed by the hydrothermal alteration type deposit. Therefore,it increases Dongchuan original seam with Qinglongshan formation after＂four stories＂ named the Yinmin formation, Luoxue formation, Heishan formation, and Doushantuo formation, respectively. Obviously, it not only enriches the content of the Dongchuan metallogenic model, but also pro- vides theoretical and scientific basis for further prospecting in this district.关键词
青龙山组矿床地质特征矿床成因/云南东川Key words
Qinglongshan Formation/geological characteristics of deposit/deposit genesis/Dongchuan/Yunnan分类
天文与地球科学引用本文复制引用
肖晓牛,张少云,鞠昌荣,张晓坤,游奔,易飞,邓辉..云南东川人占石铜矿床地质特征及成因研究[J].地质与勘探,2012,48(2):237-249,13.
