Study On Fluid Inclusions Of ? Gold Mineralization Belt In Wulonggou Mining Area,East Kunlun

The East Kunlun region is one of the major metallogenic regions of iron,copper and gold in Qinghai Province.WulongGou gold deposit is the region's largest collection of mine,but the research work on xin extension area of gold deposits are rare.This article main research Xintuo,Haxiwa and Baidungou of ditch mining gold deposits through the fluid inclusion petrography,temperature measurement and geochemical analysis,such as physical and chemical characteristics,source of ore-forming fluid is analyzed.Eventually determine deposit genesis and prospecting direction.The following conclusions are obtained:?1?The most rich altered rock in the mining area is the alteration rock reconstructed by structural superimposition;The neralization is closely related with the silicification,sericitization,chloritization,pyrite mineralization,and the alteration of the wall rocks has obvious zonation;The main controlling factors are fault structure,which are similar to those of Wulonggou Gold Deposit and East Kunlun metallogenic belt ? Therefore,gold deposits in the mining area are typical orogenic gold deposits.?2?The average homogenization temperature of the fluid inclusions in Xintuo mining area is 200.59 ?,and the average salinity is 9.44%,which is low temperature and low salinity The average homogenization temperature of the fluid inclusions in Xintuo mining area is 173.85 ?,and the average salinity is 2.29%,which is low temperature and low salinity;The average homogenization temperature of the fluid inclusions in Xintuo mining area is 179.98 ?,and the average salinity is3.45%,which is low temperature and low salinity;?3?The degree of development and the physicochemical characteristics of fluid inclusions are related to the extent of mineralization alteration.The fluid inclusions in the re-mineralized and altered areas are excellent,and the uniform temperature and salinity values are high;The development of fluid inclusions in the areas with poor mineralization and alteration is poor?The homogenization temperature and salinity of the fluid inclusions tend to decrease with the degree of mineralization and the degree of alteration.?4?Hydrogen and oxygen isotopes indicate that ore-forming fluids are derived from magmatic water and seawater;There are H2 O,CO2 and hydrocarbons in the liquid inclusions in the fluid inclusions,and the ions in the liquid phase are Na⁺,K +,Ca²⁺ and Cl^-,NO^3- and SO^4-.