METALLOGENIC CHARACTERISTICS AND ORIGIN OF SAWAYARDUN GOLD DEPOSIT,SOUTHWESTERN TIANSHAN MOUNTAIN

The Sawayardun gold deposit occurs in the middle-upper Carboniferous turbidite sequence,and the mineralization is restricted by the fracture zones.The ore is composed of sulfide such as pyrite,arsenopyrite,and chalcopyrite and so on;the matrix mineral composed of quartz and calcite.The gold is found mainly in electrum.The isotopic elements show that the mineral substance is coming from the old deep strata.It could formulated a model of circulating atmospheric water becoming a hydrothermal fluid at depth,dissolving gold metals from the country rocks,and migrating to a place with lower pressure and precipitated into stratum good deposit.The mineralization date is the middleupper Yanshan epoch or later,using K-Ar method.The Sawayardun deposit is a Muruntar-type gold deposit.