Abstract: Based on the methodology of mineral resources prognosis of synthetic information, taken the Au deposits concentrated regions as model units and the Au anomaly concentrated regions as prediction units, the gold appraisal using the synthetic information is carried out. In Qinghai Province, it reveals that the Au deposits are mostly distributed on the sits between different tectonic units; and in the edge of the exposed and/or concealed metamorphic basement of the early Sinian Period; in the area of the exposed and concealed acid-instrusions and/or their contacts; and in the localities where the circular and linear anomalies of graviation and magnetism cut across. This is the first time to make this type of prognosis for large and superlarge Au deposits in Qinghai Province and the work will provide some clues to geological exploration efforts afterwards in the province.

Key words: large and superlarge deposits, prediction based on synthetic information, Qinghai Province,  concentrated regions