GEOCHEMICAL CHARACTERISTICS AND PROSPECTING INDICATORS OF THE LAOWAN GOLD DEPOSIT

the Laowan gold deposit is an important large-size tectonic altered rock type gold deposit discovered in recent years. There exist certain differences between gold orebodies (or ore vein groups), ore-controlling structures, magmatic rocks, ore-hosting strata, near-ore hydrothermal altered zones and surrounding geological bodies, which result in obvious geophysical anomalies that constitute important geophysical prospecting indicators for gold deposits. Based on the study of geophysical characteristics of the ore deposit, the authors have tentatively summed up geophysical prospecting indicators and determined the association and flow chart of geophysical prospecting techniques so as to serve and guide the current reconnaissance and prospecting work in the gold-silver ore-forming belt on the northern slope of the Tongbai-Dabie Mountains.acte