Relationship between Geological Survey and Electrical Exploration in the Kumitomi Mine

Abstract

The relationship between geological properties and geophysical properties of the underground structure is very complicated. For example, carbonaceous slates commonly show a low resistivity, whereas limestones usually show a high resistivity but it is noticed that the use of geophysical explorations for geological surveys is not so much adopted.
In this paper, the authors intend to explain a trial study for the relationship between geological surveys and geophysical explorations, mainly electrical explorations, in the case of the Kunitomi Mine, Sumitomo Metal Mining Co., Ltd.
The geological survey map is shown in Fig. 2 and the resistivity exploration map is shown in Fig. 15. In these maps, the weakly altered zone correlates with the low resistivity zone and the dolerite zone correlates with the high resistivity zone.