江西省兴源冲地区深部找矿潜力评价

江西省兴源冲地区处于九岭南缘逆冲推覆构造系中,NEE向的慈化—宜丰板缘深断裂带及大型推（滑）覆构造西段向南呈弧型转弯并与湘赣边界的NNE向走滑推覆冲断带复合,形成了对铜多金属矿成矿有利的异常构造、岩浆岩、矿源层及赋矿层、矿化异常等控矿因素耦合区。该区具有明显的地、物、化、遥找矿信息：区域1∶20万和1∶5万水系沉积物测量显示Cu,Pb,Zn高异常区;1∶2.5万和1∶1万土壤地化测量已圈定出Cu,Pb,Zn,Au,Ag元素异常多处,综合异常4处;1∶1万激电异常明显;少量探槽、钻孔控制求得333＋3341资源量已具小型规模。根据成矿地质条件及物、化异常分析,该区深部找矿潜力较大,有望扩大为中型以上规模铜矿床。

Evaluation of ore-searching potential to depth in Xingyuanchong area of Jiangxi province

Xingyuanchong area of Jiangxi province is located in the overthrust system at southern margin of Jiulingshan mountain where NEE Cihua-Yifeng deep fault belt at a plate margin and the western large overthrust fault extend in arc to south and superimpose on NNE strike-slip thrust fault at border area of Hunan and Jiangxi provinces and the area is a coupling area of favorable ore-hosting structure,magmatic rock,source bed,ore-hosting horizons and geophysical and geochemincal anomalies.The area is characterized by clear geophysical,geochemincal,remote sensing information.Regional river sediment survey at scale 1∶200,000 and 1∶50,000 show areas with high anomaly concentrations of Cu,P,Zn and soil geochemical survey at scale 1∶25,000 and 1∶10,000 show areas with anomaly concentrations of Cu,P,Zn,Au,Ag and IP anomaly is clear.Sparse trenches and drill holes reveals small deposit with 333＋3341 reserves.According to geological condition and analysis of geophysical and geochemincal anomalies the area is potential for ore-searching to depth and the small ore deposit is expectected to be nedium size ore deposit through further exploration.