In-mine, tunnel-to-tunnel electrical resistance tomography (ERT) has, in recent years, been a topic of research at<br>CSIR Mining Technology. This novel and unconventional application of ERT is aimed at detecting and delineating<br>geological features that affect the continuity of the tabular platinum reefs of the Bushveld Complex ahead of<br>mining. In this paper, the contrast between conventional ERT and the in-mine approach is highlighted. Some of the<br>key challenges associated with in-mine ERT are discussed, together with how these challenges are overcome in an<br>effort to optimise the application for routine in-mine use. Two proof-of-concept case studies are also included.


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