江西抚州东乡枫林铜矿床成因浅析

Analysis on the Genesis of Fenglin Copper Mine in Dongxiang, Fuzhou, Jiangxi Province

江西东乡地区遭受多期构造运动,具备良好的金属成矿条件,具较好的勘探前景。经分析东乡地区铜多金属矿产主要分布于石炭系碎屑岩中,成矿物质主要来源于基岩的分化以及部分岩浆岩侵入所带来元素,上部为碳酸盐岩,容易被蚀变交代,两种不同物化性质的岩性,为成矿作用提供了有利赋存条件,在构造活动时所产生的断裂和褶皱为成矿物质的来源提供了通道和储积场所。属于海相火山沉积—叠改型铜矿床。

The Dongxiang area of Jiangxi Province suffers from multi-stage tectonic movement and has good metallogenic conditions and good prospect for exploration.By using modern metallogenic theory,new technology,new method,analyze and summarize the distribution law of ore-bearing seam and the occurrence law of copper polymetallic ore,and guide further prospecting.After analysis,the copper polymetallic minerals in Dongxiang area are mainly distributed in the clastic rocks of Carboniferous System,and the mineralization is mainly derived from the differentiation of bedrock and the elements caused by the intrusion of some magmatic rocks.Fractures and folds caused by tectonic activities.Wrinkle provides a channel and storage place for the source of ore-forming materials.It belongs to marine volcanic sedimentary-superimposed copper deposit.To further understand the metallogenic geological background of copper deposits,the relationship between volcanic structure and mineralization,and to explore the metallogenic law.