明延鉱山の帯状分布と探鉱について

抄録

Modes of occurrences of ore shoots in each vein of the Akenobe Mine may suggest the direction of flows of ore-forming solutions, which were introduced at the north-east trending faults. A rather remarkable horizontal zonal arrangement of ores has been recognized in the mining area where the zones of Sn-W, Cu, Pb-Zn and Au-Ag ores are arranged from center succesively. In this central portion is an deep Akenobe fault with the north-south strike, which might have intimate relation with a set of the north-east trending. faults. The both sets of faults mentioned above may have been active before and after the mineralization. Recent exploration works have been conducted again in the neighbourhood of the Akenobe fault.