The effectiveness of the soil absorbed hydrocarbon method over ore bodies of the Lawu

polymetallic deposit in Dangxiong, Tibet was experimentally studied by previous workers, and the result

shows that the anomalies of adsorbed hydrocarbon are quite clear over ore bodies, and hence the method is

effective. On such a basis, the method was employed by the authors in exploration work. In the Lawu ore

district, three clear anomalies of hydrocarbon and three corresponding favorable oreprospecting targets

were delineated. A copper vein some 6m thick was later found in No. 1 target. All this proves the

adaptability and practicability of this method.