APPLICATION OF GEOPHYSICAL TECHNOLOGY IN THE DEEP PROSPECTING IN JINCHANGGOU COPPER AND MOLYBDENUM DEPOSIT, HEILONGJIANG PROVINCE

Based on the coexistence relationship of the Cu-Mo ore and magnetite in the orefield, the Cu-Mo ore bodies can be indirectly located by high-precision magnetic survey. The lithological boundaries and tectonic distribution are ascertained with analysis on the magnetic characteristics of rocks in the orefield. With the controlled-source audiomagnetotellurics(CSAMT), the contact zones of intrusive rocks and strata are delineated by the electric characteristics of rocks in different depth. The electrical differences of rocks can be used to look for ore-induced low resistivity and provide basis for deep ore prospecting.