SEGJ Technical Conference


Complex resistivity of artificial samples containing magnetite particles


Abstract
Exploration of nonferrous metal ore deposits like porphyry copper and iron oxide-hosted copper-gold deposits, the IP method is used in many cases. This is because sulfide minerals such as pyrite and chalcopyrite have the IP effect. However, these sulfide minerals are not often found at the place where the IP anomalies were observed. One of the causes is existence of magnetite. Therefore we have studied the influence of magnetite to the IP effect. In this study, we measured the complex resistivity (SIP) of artificial samples consisting of magnetite particles which extracted from the iron ores of the Kamaishi mine, glass beads and KCl solutions. Then we tried to analyze the SIP parameters by Cole-Cole model. The results show that the IP effect of the artificial samples containing magnetite particles has different frequency dependency and is quite weak as compared with the IP effect of artificial samples containing pyrite particles.