地质论评2012,Vol.58Issue(1):82-90,9.
江西德兴地区主要矿床类型、成矿地质征及其因关系
Mineral Deposits Types, Mineralization Features and Genesis Relationship between Jinshan Gold Deposit and Dexing Porphyry Copper Deposit,Northeastern Jiangxi Province, South China
摘要
Abstract
The Dexing area, north-eastern Jiangxi province, China, is an important Cu-Au-Pb-Zn-Ag metals concentrating area. In this area, there are large scale Dexing porphyry copper orefield ( includes Zhushahong, Tongchang and Fujiawu deposit etc. ) , shear zone-related Jinshan gold deposit and subvolcanic-related Yinshan Pb-Zn-Ag polymetallic deposit. These deposits can be divided into two types; shear zone host deposits and the magmatic-hydrothermal related deposits. These two types of deposits have different characteristics on the ore-controlling structures, ore forming elements assemblages, and the origin of ore forming fluids as well as the deposit geochemistry. It is suggested that these two types of deposits have no clear relations on genesis. The difference in ages indicates that they are formed in different stages of geological evolution. The shear zone-hosted gold deposit was formed during the Neoproterozoic collision between Huaiyu terrane and Jiuling terrane, the matmatic-hydrothermal related deposits were the results of Jurassic subduction of Pacific plate. They are not the results of single magmatic-hydrothermal system.关键词
剪切带金矿/斑岩铜矿/矿床成因/矿床类型/江西德兴Key words
porphyry copper deposit/ ductile shear zone-related gold deposit/ orogenic gold deposit/ metallogenesis/ Jinshan, Dexing, Jiangxi引用本文复制引用
李晓峰,胡瑞忠,韦星林,肖荣,肖宁,王翠云,杨锋..江西德兴地区主要矿床类型、成矿地质征及其因关系[J].地质论评,2012,58(1):82-90,9.基金项目
本文为国家自然科学基金资助项目(编号40872065)、中国科学院"百人计划"项目、人事部留学人员科技活动项目择优资助基金的成果. (编号40872065)