大地电磁测深在云南长安金矿勘查中的应用  

THE APPLICATION OF TERRESTRIAL INDUCED POLARIZATION SOUNDING TO THE EXPLORATION OF CHANGAN AU DEPOSIT,YUNNAN

作　　者：王大波 张宇鹏[1] 陆炎 

机构地区：[1]云南省地质矿产勘查院,云南昆明650051

出　　处：《云南地质》2017年第3期415-419,共5页Yunnan Geology

摘　　要：云南长安金矿处于金平断块(Ⅳ级矿带)中南部,矿体受近南北向压扭性断层控制,属于中-酸性侵入岩有关的金矿床。采用EH-4大地电磁测深测量,能清晰的反映矿区深部岩层及地质构造的展布形态,并推测出多条近南北方向断裂构造带,为下一步的勘查提供了找矿方向,也表明EH-4大地电磁测深对矿区深部地质构造的查证是一实用有效的勘探手段。Changan Au deposit of Yunnan is in the central south part of Jinping fault block. The ore body is controlled by the pressure-torsion fault, belonging to the Au deposit in relation to the intermediate-acid intrusion rock. The terrestrial induced polarization sounding with EH-4 can show the extension of deep rock bed and geolog-ical structure of orefield clear, and infer many nearly NS fault zones. It provides the prospecting direction for the future exploration and shows the terrestrial induced polarization sounding with Eh-4 is an effective prospecting meth-od in the examination of deep geological structure of orefield.

关 键 词：大地电磁测深 勘查应用 云南金平 长安 

分 类 号：P631.322[天文地球—地质矿产勘探]