刚果(金)KASOMBO铜钴矿区物探方法找矿应用条件和效果  

Application conditions and effects of geophysical exploration methods in KASOMBO copper cobalt mining area,Democratic Republic of Congo

作　　者：郝波 杨英 HAO Bo;YANG Ying(China Nonferrous Mining Hong Kong Holdings Limited,Beijing 100036,China;China Nonferrous Metals(Guilin)Geology And Mining Co,Ltd,Guilin 541004,China)

机构地区：[1]中色矿业香港控股有限公司,北京100036 [2]中国有色桂林矿产地质研究院有限公司,广西桂林541004

出　　处：《世界有色金属》2023年第5期64-66,共3页World Nonferrous Metals

摘　　要：文中以在非洲刚果(金)KASOMBO铜钴矿区物探测量为例,分析利用大功率直流激电法、高精度磁测和EH4电磁测深指导找矿的适用条件和测量效果。大功率直流电法因接地电阻太大而无法施测,高精度磁测因磁性差异较小不具备物性前提,EH4电磁测量则取得较好的勘查效果,其反演处理断面有效反映出地下铜钴矿化体的赋存空间,断裂构造的展布特征,对基底岩石及蚀变带、侵入体、氧化还原带、裂隙富水区段也有一定显示,达到了预期的勘查目的,建议可以推广使用。By illustrating the geophysical prospecting in KASOMBO copper&cobalt mine area in Jadanja province,Congo,Africa,the article analyze the applicable conditions and prospecting effects of large-power DC IP,high precision magnetic method and EH4 electromagnetic sounding.Because the grounding resistance is too large,the large-power DC IP method could not be used,and because the magnetic difference is relatively little,the precondition of high precision magnetic method could not be satisfied.While the EH4 electromagnetic sounding obtained better prospecting results,its processed and inversion section effectively reflects the deposit position of copper&cobalt mine body,the distribution character of fault structure,and it also reveals the basic rock and ecliptic zone,the intrude body,the oxidize-revert block and cranny rich water zone.Thus the anticipative prospecting aim was achieved.We suggest the method can be popularized to use.

关 键 词：铜钴矿床 物探测量 矿化体 勘查效果 KASOMBO 

分 类 号：P618.63[天文地球—矿床学]