摘要
安徽省庐江县何家冲地区位于中生代庐枞火山岩盆地中偏北部地区,周边已发现多处铜矿床,成矿条件有利。通过在安徽省庐江县何家冲地区开展1∶10000地质填图、磁法测量及土壤地球化学测量等工作,探讨该区的铜矿成矿条件及找矿方向。结果表明:该区存在5处磁异常和3处化探异常,地表新发现了数条脉状铜矿化体。通过综合分析该区地质、物探及化探信息,收集以往钻孔资料,认为该区处于庐枞盆地脉状铜矿成矿时代第二期,即双庙旋回、浮山旋回中—晚期,具有形成热液脉型铜矿的潜力,圈定B1和B2找矿靶区,为该区下一步找矿工作提供依据。
The Hejiachong area in Lujiang County of Anhui Province is located in the north-central Mesozoic Lujiang-Zongyang volcanic basin.Several copper deposits have been found in the surroundings with favorable metallogenic conditions.The ore-forming conditions and prospecting direction of copper deposits are discussed through the 1∶10000 geological mapping,magnetic survey and soil geochemical survey in Hejiachong area.The results show that there are 5 magnetic anomalies and 3 geochemical anomalies with several newly-discovered vein copper mineralized bodies on the surface.By analyzing the geological,geophysical and geochemical informations of the area comprehensively,and collecting the previous drilling data,it is considered that the area is formed in the second stage of metallogenic age of vein copper deposit in Lujiang-Zongyang basin,namely the Shuangmiao Cycle and middle-late stage of Fushan Cycle,with the potential of forming hydrothermal vein type copper deposit.Two prospecting targets of B1 and B2 are delineated,which provides basis for the further prospecting in the area.
作者
李道志
许强平
付光明
LI Dao-zhi;XU Qiang-ping;FU Guang-ming(No.327 Geological Team,Bureau of Geology and Mineral Resources of Anhui Province,Hefei 230011,China;School of Geophysics and Measurement-Control Technology,East China University of Technology,Nanchang 330013,China)
出处
《华东地质》
2020年第3期279-287,共9页
East China Geology
基金
安徽地矿投资集团有限公司“安徽省庐江县何家冲地区铜金矿普查(编号:GSDK2014-03)”项目资助。
关键词
铜矿
成矿条件
找矿方向
何家冲地区
copper deposit
metallogenic condition
prospecting direction
Hejiachong area