南秘鲁QUELLAVECO铜矿激电测深异常  

AN ANALYSIS OF IP SOUNDING ANOMALIES IN THE QUELLAVECO COPPER DEPOSIT OF SOUTHERN PERU

作　　者：刘伟[1,2] 余友 张明会[2] 

机构地区：[1]中南大学信息物理工程学院,湖南长沙410083 [2]黑龙江省有色金属地质勘查703队,黑龙江阿城150300

出　　处：《物探与化探》2010年第4期444-447,共4页Geophysical and Geochemical Exploration

摘　　要：分析秘鲁南部大型斑岩铜矿床的激电测深资料,发现该区激电测深异常对金属硫化物矿(化)体及蚀变岩石有良好的反映;充电率大小与岩石中金属硫化物含量多少有关,电阻率高低与岩石蚀变强度有关;强黄铁矿化岩石引起高充电率异常,铜钼矿(化)体引起中等强度充电率异常,强蚀变岩石引起低阻异常,弱蚀变岩石引起中阻异常,无矿化、无蚀变岩石引起高电阻率、弱—无充电率异常。反演结果推断断面图及平面图对钻探施工有较大的指导意义。IP sounding anomalies can effectively reflect metallic sulfide mineralized ores and altered rocks in the Quellaveco copper deposit.The size of chargeability is related to the metallic sulfide amount of rocks,and the high or low resistivity is caused by the alteration intensity of rocks.Intense anomalous chargeability occurs in strong pyritized rocks.Intermediate anomalous chargeability is caused by copper and molybdenum（mineralized） ores.Low or intermediate resistivity anomalies occur in strongly or slightly altered rocks.Non-mineralized and non-altered rocks show high resistivity and low or no chargeability.The inferred map of inversion results has a great significance for drilling deployment.

关 键 词：激电测深 Quellaveco铜矿 大型斑岩铜矿床 金属硫化物 

分 类 号：P631.3[天文地球—地质矿产勘探]