MINERALIZATION FEATURES AND PROSPECTING GUIDE OF GOLD DEPOSITS IN GUOLUOLONGWA DISTRICT,QINGHAI PROVINCE

Luoguolongwa Au anomaly is occurred in Dulan County,Qinghai Province,Northwest China.The anomaly is controlled strictly in Lower Carboniferous strata.The assemblage of an omalous elements is mainly Au,associated with Ag,Pb,Cu and Co.The anomaly is high in strength and large in scale,with three obvious zones and two concentrated centers.Quartz vein type of gold mineralization is dominant in the anomalous district.The lodes are composed of almost-pure puartz,with the highest gold grade up to 35.3×10^-6 and a reconnaissance resources over 5 t.The area is potential for medium sized gold deposit.The mineralization should be a new type in the area.It is an important guide for the gold prospecting there.