Complex resistivity of mineral rocks in the context of the generalized effective-medium theory of the IP effect

Burtman, Vladimir (University of Utah) | Zhdanov, Michael (University of Utah) | Lin, Wei (University of Utah) | Endo, Masashi (TechnoImaging)


One of the major problems in mineral exploration is the inability to reliably distinguish between economic mineral deposits and uneconomic mineralization. While the mining industry uses many geophysical methods to locate mineral deposits, until recently, there was no reliable technology for identification and characterization of mineral resources. The main goal of this paper is an application of the generalized effective-medium theory of induced polarization (GEMTIP) to studying the complex resistivity of typical mineral rocks. We collected representative rock samples from the Cu-Au deposit in Mongolia, and subjected them to the mineralogical analysis using Quantitative Evaluation of Minerals by Scanning Electron Microscopy (QEMSCan) technology. We also conducted an analysis of the electrical properties of the same samples using the laboratory complex resistivity (CR) measurement system. As a result, we have established relationships between the mineral composition of the rocks, determined using QEMSCan analysis, and the parameters of the GEMTIP model defined from the lab measurements of the electrical properties of the rocks. These relationships open the possibility for remote estimation of types of mineralization using spectral IP data.

Presentation Date: Wednesday, October 19, 2016

Start Time: 3:35:00 PM

Location: Lobby D/C

Presentation Type: POSTER