THE TYPOMORPHIC CHARACTERISTICS OF QUARTZ IN GOLD QUARTZ VEIN AND ORE-SEARCHING SIGNIFICANCE IN WULONG GOLD DEPOSIT OF LIAONING PROVINCE

In Wulong gold deposit of Liaoning, the ductile deformation, microcrack and corrosion in quartz crystals is common in gold quartz vein and uncommon or lacking in barren quartz vein. Fluid inclusion is characterized by abundance, clear stages of mineralization temperature and development of ebullition in gold quartz vein and on the contrary in barren quartz vein.The chemical composion of inclusions lead us to infer that the ore fluid is of CO2-H2O-Cl-Na-Ca type and the hydrothermal solution of barren quartz vein is of CO2-H2O-F(Cl)-K-Ca(Mg) type. Concentration clarke (Ck) of trance elements in quartz and correlation coefficents show that Au.Sb.Bi.W.Ag are major ore-forming elements and the Ck is richer in gold quartz vein than in barren quartz vein. The thermoluminescence curve shows double peaks or multiple peans for gold quartz vein, but single peak for barren quartz vein.Above typomorphic characteristics of quartz are important indicators for gold quartz veins in the Wulong gold deposit.