赣东北西蒋金矿地质特征及矿化富集规律  

Geological characteristics and mineralization enrichment rules of Xijiang gold deposit in the northeastern Jiangxi

作　　者：胡金山[1] 刘金刚[1] 张广明[1] 胡国浩[1] 熊平文 王谦 

机构地区：[1]江西有色地质勘查四队,景德镇333001 [2]江西花桥金矿,德兴334213

出　　处：《矿产勘查》2016年第4期575-585,共11页Mineral Exploration

基　　金：江西省有色地质勘查四队"江西省德兴市西蒋矿区花桥金矿(扩深)资源储量核实"项目的最新勘查成果

摘　　要：文章利用新的勘查成果,对矿田内西蒋金矿的容矿地层、矿区构造、围岩蚀变、矿体特征及矿石类型进行归纳总结,获得如下认识:(1)西蒋金矿为新元古代韧性剪切带控制的变质热液型金矿;(2)矿区内西蒋—石碑和金山—朱林两条韧性剪切带在深部倾角逐渐变陡并聚合在一起;(3)变质安山玄武岩、高含量的黄铁矿以及硅化、铁白云石化是有利的找矿标志。这些研究成果希望能对"金山式"金矿的含矿韧性剪切带深部构造特征的认识以及金山金矿田深边部找矿有所帮助。In order to guide the prospecting in the Jinshan ore field, the host strata, ore-controlling structures, wallrock altera- tion, features of orebodies and ore types of the Xijiang gold deposit were summarized based on the latest geological exploration achieve- ment, and the following conclusions were obtained： （ 1 ） the deposit is a Neoproterozoic metamorphic hydrothermal type deposit con- trolled by ductile shear zone; （2） dipping angles of the Xijiang-Shibei and Jinshan-Zhulin ductile shear zones become much steeper from shallow to deep; and these two ductile shear zones joint together in the depth ; and （3） meta-andesitie basalt, high content of py- rite, silieification and ferrodolomitization are the favorable prospecting criteria.The above-mentioned conclusion will help to understand the genesis of the Jinshan gold ore field and the distinctive deep structural feature of ductile shear zone as well as further prospecting in the Jinshan gold ore filed.

关 键 词：西蒋金矿 地质特征 韧性剪切带 矿化富集规律 矿床成因 

分 类 号：P618.51[天文地球—矿床学]