THE METALLOGEOLOGIC SETTING, TYPES OF GOLD ORE DEPOSITS AND THE PROSPECTING ORIENTATION IN WESTERN LIAONING

Western Liaoning is situated at the midsection of the northern margin of the North China Platfom, That is, the intersection of the paleo-Asia ccean and the Pacific ocean metallogenic domain. rhere are much Later Archean auriferous greenston formation and Tanshanian Au-Cu Series granitoid at the area of scientific investigation. The former is the major precondition of the formation of gold mineralization concentrated district, the latter is a main agent for the gold remobilization from source bed (rcok), The Spatial distribution of gold ore deposits is chiefly controlled by the EW trending upwarped zones, deep faults, the NE (NNE) trending structural-magmatic zones, the NW trending compressive structtires and their intersections, to show a rhombus shaped pattern, The gold ore deposits in this area are classified into four types:Archean greenston formation type, Phanerozoic granitoid formationtype, Mesozoic Volcanic rock formation type and sedimentary rock formation type. It is an important to reseach new types of gold ore deposits and to prospect deep and blind orebodies at the gold mines.