METALLOGENIC MODEL OF GOLD DEPOSIT IN DANDONG-WULONG AREA, LIAONING PROVINCE

The lithology of wall rocks of the gold deposits in Wulong-Gulouzi gold perspective area is mainly gneissic granite. The occurrence of massive sulfide vein is strictly controlled by the NNE- and NWW-trending fault structures. The gold deposits are genetically epi-mesothermal fluid filling quartz vein type. In the early stage, diorite magma inflatable diapiric emplacement happens and fills the structural fissures of wall rock to form dioritic porphyrite dyke. In the later, Au fluids fill the revived earlier fissures (filled by dioritic porphyrite) and new structural fissures to form gold-bearing sulfide quartz vein.