摘要
江西德兴银山矿床是一个Cu-Pb-Zn-Au-Ag矿化集中区,该处地质工作程度较高,但物探资料较缺乏。作者采用双频激电法、自然电场法和天然电场选频法开展试验探测工作,期望探讨方法的有效性,为矿区深、边的找矿工作提供科学依据。根据探测结果可知,银山矿区的铅锌矿和斑岩铜矿具有十分明显的低阻高极化特性,激电方法适合于该矿区的边部找矿工作,但矿区工业电流干扰大,所以最好采用大功率激电方法;自然电场和天然电场选频法方法简便,仪器轻便,其异常与矿体或构造具有较好的对应性,特别是自然电场法适合于井下巷道中开展工作,可作为今后深部矿产预测的方法之一。
The Yinshan deposit in Jiangxi province is a Cu-Pb-Zn-Au-Ag ore-concentrating zone.Many geological data could be collected,but geophysical data were scarce.The dual-frequency IP method,frequency selective method and natural electric field method had been adopted to prospect for deep-seated and fringe mines,and their validity had also been discussed.According to the exploration results,Pb-Zn ore and porphyry Cu ore have a characteristics of low resistivity and high polarizability.IP method can be used to prospect for fringe mines in this area.The high-power induced polarization method had best been used in the future,because the noise of industrial electric current is very strong.The natural electric field method and frequency selective method have the virtue of simpleness and handiness,and their anomalies are corresponding to the mine or the geological structure.The natural electric field method can be adopted in deep-seated mineral resources predication especially in laneway.
出处
《甘肃冶金》
2010年第4期104-107,共4页
Gansu Metallurgy
关键词
双频激电法
选频法
自然电场法
铜铅锌矿床
dual-frequency IP method
frequency selective method
natural electric field method
Cu-Pb-Zn deposit
