Borehole Resistivity Tomography for Mineral Exploration

摘要

This paper focuses on the use of cross-borehole electric methods in ore body delineation. A BRT (Borehole Resistivity Tomography) test survey has been conducted to map massive and semi-massive sulfide zones between boreholes up to 180 m apart. The boreholes need to be water filled, so as the electrode array couples to the rock formation. We have established a multi-step procedure for data acquisition, processing and interpretation. Between boreholes, we have successfully imaged the massive sulfide mineralization in a moderately conductive host.