摘要
在有色金属矿产勘查中,激电测深由于工作效率低,仅在重点异常剖面布置几个测深点,未能在工区更多剖面发挥出应有作用。为了提高激电测深野外数据采集工作效率,先后引进梯度电测深及借线遥控电极,并且自制"多极距中梯测深电极集中器",组合成一种新的遥控梯度电测深采集装置。该装置在小极距时采用对称四极(亚对称四极)测深装置,在极距较大的情况下更换成中间梯度测深装置,组合完成激电测深剖面观测。通过遥控电极阵列方式代替传统测深"渐进式"的扩大电极极距方式,提高了电测深的观测效率和解释能力。将这种新的中间梯度激电测深装置应用在构造、地层复杂的金矿勘查区,结果表明,它能大大提高激电测深效率,取得较好勘查效果。
Induced polarization is an effective method in exploration of nonferrous metals.Its efficiency is low while the working area including many IP profiles,which is a result of setting up a few of points in one section.In order to improve the efficiency of IP,a new remote electrode gradient device was created by using self-making multi-spacing central gradient device,which is based on Ge Weizhong s gradient IP and remote electrode.This device can be used as Schlumberger electrode array in small polar distance and central gradient device in large polar distance.The efficiency of IP was improved by using remote electrode from traditional progressive arrangement to array arrangement.It shows the validity of using this IP device in survey of gold ore in complex tectonic and layers area.
作者
冉军林
刘俊岩
RAN Jun-Lin;LIU Jun-Yan(Eryisi Brigade Company Limited In Sino Shaanxi Nuclear Industry Group,Xi'an 710054,China)
出处
《物探与化探》
CAS
CSCD
北大核心
2018年第6期1259-1263,共5页
Geophysical and Geochemical Exploration
关键词
遥控电极
梯度装置
电测深
金矿勘查
remote electrode
gradient device
induced polarization
gold ore prospecting
