In-mine electrical resistance tomography for imaging the continuity of tabular orebodies

Abstract

One of the strengths of the electrical resistance tomography (ERT) technique is its flexibility in terms of survey geometries. In this paper an unconventional and novel ERT application that is geometrically analogous to in-seam seismic tomography is introduced. The novelty of the application is its in-mine tunnel-to-tunnel use to target a thin, near-horizontal, tabular orebody. The objective of this ERT application is to delineate geological features that disrupt the lateral continuity of the economic horizon. Results from in-mine trial surveys are presented to support the concept