Effect of comprehensive geophysical prospecting method in lithium exploration in Nasarawa State,Nigeria
The level of geological work in the exploration area is low,but mining in the periphery of the exploration area has a long history.In order to quickly delineate the prospecting area for rare metal minerals in this area,its effective comprehensive prospecting model needs to be studied and summarized urgently.This article takes the successful cases of geological mapping,induced electrostatic ladder method,AMT sounding,etc.in finding hidden veins as examples to prove that traditional exploration methods are effective in finding hard rock lithium deposits represented by pegmatite lithium deposits.effectiveness.This survey determined the trend of the veins by delineating the remnant-sloping spodumene pegmatite turnstone zone or pegmatite outcrop through geological mapping,and delineated the abnormal range through induced electric gradient scanning and combined with the AMT sounding method to delineate the steep slope.The dipping high-resistance anomaly determines the tendency of the vein body,and the hidden vein is controlled through drilling engineering.Comprehensive analysis shows that the steeply dipping high-resistivity anomaly zone extending to the surface is consistent with the surface spodumene pegmatite turnstone zone or the outcrop location of the pegmatite vein.The spatial distribution of the hidden high-resistivity anomaly is correlated with the hidden spodumene pegmatite vein,and It points out the regional mineralization potential and prospecting direction,and provides a reference for the prediction and evaluation of rare metal deposits in similar areas.
国家科技期刊平台
NSTL
万方数据
