Geological And Geochemical Characteristics Of The Aletan Gold Antimony Deposit, Jinghe, Xinjiang

The Aletan gold antimony deposit is located in the Alatao-Hjiga late Paleozoicepicontinental basin. Since the agri gold antimony deposit was found，It’s researchdegree is quite low.So this research will agri gold antimony deposit as anatomicalobject.Study the geological characteristics of ore deposit and characteristics of fluidinclusions and S and Pb isotope geochemical characteristics. In order to understanddeposit metallogenic environment and source of ore-forming materials. Provided thescientific basis for further study on the mining and exploration.The argillaceous siltstone,Quartz lithic sandstone of the Hanjiga group of themiddle Devonian and the greywacke, conglomerate of the Akeshake group of LowerCarboniferous Series and Carbonate rocks of clastic rocks of the Dongtujinhe groupof the upper carboniferous and the brick red glutenite,sandstone of the Dushanzigroup of the neogene and sandy soil of the Quaternary System included in the miningarea the main formation exposed. Mining area weak magmatic activity. Magmaticrocks in the form of dike and apophysis output. Most exposed and the largest dike isplagiogranite. There are two types of mining gold mineralization. One is tectonicshattered altered rock type that is controlled by tectonic fracture zone and the otherone is Quartz, calcite vein type of Containing gold type natived in fractures.Belong tothe ore-bearing hydrothermal filling mineralization. A total of development fivemineralized belt producted In the block that controlled by two massive fault fracturedzone.Field geological observation and the results of The microscopic mineralographyresearch show that geological characteristics of ore deposit has hydrothermal veintype. According to the ore fabric and Mineral paragenetic associationAccording to theore fabric and Mineral paragenetic association and relationship, Aletan gold antimonymineralization can be divided into hydrothermal mineralization stage and supergenestage. The hydrothermal mineralization period is the main metallogenic period.And divided into the medium temperature arsenopyrite, pyrite, white iron ore phase andthe low temperature quartz-stibnite stage and carbonate phase.Aletan gold antimonydeposit quartz-sulfide ore bodies are vein. Originated in the middle devonianHanjiga essential set of argillaceous siltstone layer. The ore body and wall rockboundaries clear. There are silicified rock hydrothermal alteration grow insurrounding rock. Ore mineral composition complex. Characteristics shows thathydrothermal filling and metasomatic metallogenic.Ore-forming fluid has the features of low temperature and low salinity, lowdensity. Changes in the mineralization pressure range is6.50MPa~28.37MPa.Metallogenic depth range is0.22Km~0.95Km.So it is the low temperature epithermaldeposit. According to the research of the inclusions, speculate that the ore-formingfluid in the migration process is Ore-forming fluid mixing action occurred with thefluid of high temperature and low salinity. The physical and chemical conditionschange rapidly and mineral depositsAccording to the characteristics of sulfide ore δ34S, Show that the source of theAletan mining area of sulfur is magmatic sulfur. Lead isotope compositioncharacteristics indicate. The ore-forming metals come from the lower crust. In theprocess of ore-forming mixed with crustal material in small.