赞比亚铜带省层控型铜矿物探电性异常特征  

Researches on geophysical anomalies over stratabound copper deposits in the copper belt province of Zambia

作　　者：曾高福[1] 敬荣中[1] 邓贵安[1] 曾晖[1] 张学良[1] 张建[1] 刘峰[1] 

机构地区：[1]中国有色桂林矿产地质研究院有限公司,广西桂林541004

出　　处：《物探与化探》2015年第5期948-953,共6页Geophysical and Geochemical Exploration

摘　　要：赞比亚铜带省的主要铜矿床为层控型,铜矿体赋存于加丹加(Katanga)超群下罗恩亚群岩层中。在了解层控型铜矿床地质特征的基础上,在该地区3个已知典型层控型铜矿床上进行了激电中梯和EH-4高频大地电磁系统的试验,通过已知矿体和物探异常的对比研究,总结了该区域含矿岩石和主要围岩的电性异常规律,并建立了主要围岩和矿体的地球物理电性示意模型,为寻找同类型的矿床提供依据和指导。Stratabound copper deposits constitute the main kind of copper deposits in the copper belt province of Zambia. Copper deposits occur within sediments of Lower Roan Formation, Katanga Supergroup. Based on geological features of stratabound copper deposits, the authors studied geophysical anomalies of known orebodies in three stratabound copper deposits by using IP intermediate gradient and EH-4 electromagnetic sounding. On such a basis, the authors summarized the regularity of electrical anomaly from ore-bearing rocks and main wall rocks, and established geophysical electrical signal model for main wall rocks and ores, which can guide the prospecting for the same kind of copper deposits in the copper belt province of Zambia.

关 键 词：层控型铜矿床 物探异常 激电中梯 EH-4 电性模型 赞比亚铜带省 

分 类 号：P631[天文地球—地质矿产勘探]