资源调查与环境Issue(3):218-224,7.
江西省万载县野猫冲铜矿控矿构造特征及找矿意义
Characteristics of ore-controlling structure and its implication of the Yemaochong copper deposit,Wanzai county,Jiangxi Province
摘要
Abstract
The Yemaochong copper deposit in the Wanzai County ,Jiangxi Province ,is an alteration-type copper deposit which was formed by medium-low temperature hydrothermal solution (ore-forming fluid) alteration along tectonics fractures .On the basis of the surface geological survey ,observation of drilling cores and identification of rocks and minerals , the ore-controlling structure in the Yamaochong copper deposit was researched in detail .It is shown that the large-scale NEE-strike imbricated nappe (gli-ding nappe) structure controlled the deepening and distribution of all the geological units ,and the NE-strike ductile shear deformable zones dominated the distribution of Au-Cu ore bodies in the area .The Au-Cu ore bodies with stratoid shapes were hosted in secandary-interlayer fracture zones and minor fractures between ductile shear zones ,where more intensive dynamo-thermal metamorphism ,silicification ,sericiti-zation and chloritization were developed .The ores are mainly consisted of chalcopyrites and poor in sulfur .The ore-forming fluids are characterized by multiphase activities and superimposed reformation .More than 20 copper polymetallic ore deposits (occurrences) have been found in the Shangli-Tanbu-Yifeng fault zone from west to east ,showing great prospecting potentials of the zone .关键词
叠瓦状推(滑)覆构造/韧性剪切断裂/控矿构造/野猫冲铜矿/江西万载县Key words
imbricated nappe(gliding nappe)structure/ductile shear fracture/ore-controlling struc-ture/Yemaochong copper deposit/Wanzai County of Jiangxi Province分类
天文与地球科学引用本文复制引用
肖晓林,吴旭铃,龚咤云,凡秀君,胡春根..江西省万载县野猫冲铜矿控矿构造特征及找矿意义[J].资源调查与环境,2014,(3):218-224,7.基金项目
江西省万载县野猫冲铜多金属矿详查(项目编号赣地矿字[2011]81号)资助。 ()