Geophysical Prospecting of Sulphur and Mining Iron Sulphide Ore Deposits of the Hokkaido Mine, Nittetsu Co., Ltd

Abstract

Various methods of geophysical prospecting have been applied to sulphur or iron sulphide ore deposits of the Hokkaido mine since 1951. They are spontaneous polarization, apparent resistivity, seismic, AFMAG and induced polarization methods. Many drillings have been done in the area of geo-physical anomalies, and several new ore deposits have been discovered. In this paper, the writer discusses the relations between the geophysical prospectings and the result of drillings.