Xinyuan County, Xinjiang Geological Characteristics And Genesis Of Gold Katebaasu

Nikolaev belt is an important gold metallogenic belt in Central Asia, known asthe Central Asian gold belt. Extending in the country for Nalati-Hongliuhe tectonicbelt, Xinjiang is an important iron, copper, gold, polymetallic metallogenic belt. Theregion has experienced a long-term evolution of complex geological structure, withfavorable gold, copper, iron and other geological background. Xinyuan CountyKatebaasu gold mine that is located in that area. In this paper, through geological datacollected on a regional basis, summarized the regional geological background,combined with the long-term geological survey and sample collection, processing andcomprehensive research and analysis of indoor samples, the geological characteristicsKatebaasu gold deposit, alteration and mineralization characteristics, controllingstructural features ore, the main characteristics of trace elements, isotopes of pyriteand other aspects of the study compared the system. Comprehensive study of therelationship with the mineralization deposit stratigraphy, tectonics, igneous rocks, etc.,based on the law of summary Katebaasu gold mineralization for mine prospectingprovide further theoretical support, this study achieved the following understanding:1.Katebaasugold was altered rock and quartz-pyrite vein type gold deposit. Orebodies controlled by faults, mainly occur in the EW trending tectonic alteration zone,as veins, lenticular output. Silicification, pyrite phyllic alteration and goldmineralization is closely related to its shape and fine powdered pyrite is the maincarrier of mineral mining gold.2.Katebaasugold with horizontal wall rock alteration zonation. Alteration zonesfrom the center to the sides, followed by gold veins-pyrite phyllic granitic rockfragmentation-potassic, phyllic weak fragmentation granitic rocks-granodiorite and potassic adamellite.3.Katebaasugold deposit mineralization is divided into three phases: Phasegranite intrusive, structural alteration of, supergene period. The main mineralizationoccurs in the structural alteration of the period. The mineralization of mineralizationcan be divided into five stages: pyrite phyllic phase, pyrite-quartz stage, gold-quartz-pyrite stage, gold-polymetallic sulfide stage, carbonate phase. Where gold-quartz-pyrite stage and gold-polymetallic sulphide mineralization stage is the main stage.4.Geochemical studies Katebaasu gold mine granitoids show thatKatebaasugoldadamellite too aluminum, alkaline K calc-alkaline series, the genetic type of S-type,diagenetic background volcanic arc magma zone, diagenetic material source for thepartial melting of metapelites formed in the deep crust. Su said Katebaasu goldmicro-plate magmatic rocks of Yili and Tarim plate collision during partial melting ofcrustal material in the form of deep magma emplaced in the continental marginvolcanic arc area.5.Katebaasugranitic intrusions along class early Nalati-Hongliuhe fractureintrusion, as mine"source bed." After NEE and NWW ductile-brittle tectonicstrike-slip faults, rock rub flow, crushing, fracture filling mineralization fluidalteration along the secondary structure of the final site of deposition in favorablemineralization.Katebaasu Gold was initially considered structurally controlled orogenic goldand copper deposits.