激电中梯测量在青海省楚鲁特石墨矿找矿中的应用

Application of induced polarization (IP) intermediate gradient measurement in prospecting of Chulute graphite deposit,Qinghai Province

青海楚鲁特地区具有丰富的石墨矿资源,且前期地质工作发现该区有矿(化)体。通过开展激电中梯测量工作,圈定了两条异常带,并根据资料解译,大致了解矿(化)体的分布、延伸情况等,对后期浅钻工程的布置起到了较好的指导作用。后续浅钻成果资料表明:激电测量工作圈定的异常带均为矿致异常,大功率激电在本区寻找石墨矿是有效的,并且勘查工作所采取的电法、浅钻等对环境的破坏程度较小,符合当前地勘工作绿色勘查的要求,具有一定借鉴意义。

The Chulute area in Qinghai Province is rich in graphite ore resources,and the previous geological work found that there are orebodies(mineralized bodies)in the area.In this study,two anomalous zones were determined by conducting the induced polarization(IP)intermediate gradient survey,and the distribution and extension of the orebody were roughly understood according to the data,which played a good guiding role in the arrangement of the later shallow drilling engineering.The results of the follow-up shallow drilling results showed that the anomalous zones determined by the IP working circle were all anomalies related to mineralization.High-power IP was effective in finding graphite ore in this area,and the electric method and shallow drilling adopted by the survey work were environmentally friendly,which was in line with the requirements of the current green exploration of geological survey work,and had certain reference significance.