THE GEOLOGICAL CHARACTERISTICS OF LIUTUN GOLD DEPOSIT AND ITS GENESIS

Liutun gold deposit belong to auriferous sulfide quartz vein type.Late Archean eon migmatitic granite is the direct wall rock.In the region, Dayingzi Formation of Jianping Group is the source bed of gold.Gold mineralization is closely related to Mesozoic tectonic and magmatic activities, Auriferous quartz veins (ore vein) were strictly controlled by faulted structure trending nearly EW, The S-isotopic Composition present that ore wall rock and Mesozoic intrusive rock have the same nature-mantle derived sulfide, Hydrogen and oxygen isotopic compositions show the multiple-origines of ore-forming solution. The lead isotope of ore belong to ancient lead series, and has the same source with that of feldspar in Mesozoic rock body.Through the discussion on ore deposit genesis, the authors consider that the gold deposit complex genesises type of magmatic hot source and mixture hydrothermal solution, the metallogenetic epoch was Yanshanian period.