Geological Characteristics And Genesis FUYUN County Aktas Gold Deposit

According to the viewpoint of plate tectonics, the study area is located in the Urals-Mongolia orogen, which is the central of the world’s second largest collision orogens, and is the worldwide typical collision orogenic areas; also at the joint position of Siberia plate and Kazakhstan plate. Most of exposed strata is the Middle and Lower Devonian, the Middle and Lower Carboniferous, secondly is the Ordovician; and the Cenozoic is wider distributed. From the analyzes we know the study area is located in the edge of the tectonic zone. Which crustal motion is strongly and frequently that conducive to the formation of the mineral.The article based on previous data,the integrated use of the theories and methods of petrology, mineralogy, ore deposits, geochemistry, isotope geology multidisciplinary.I selected Aktas copper gold mine to in-depth analysis. Through the wild、the indoor observational studies and geochemical methods research, the article summarized the geological background of the gold deposits of the study area,geological characteristics, mineralization, and mineralization of the characteristics the mineralization age of ore conditions the ore-controlling structure forming material source and prospecting model, a more comprehensive study and summarize.The copper and gold mine of aktas basalt, rough basalt, andesite, basaltic andesite spent23samples for geochemical analysis, the basalts of aktas low titanium, low iron, low magnesium and high alumina. Determine the formation environment is base on the island arc environment. REE distribution pattern was flat right tilt curve.Register as LREE,the light REE week enrichment.The characteristics of differentiation is significantly. And showed weak positive anomaly of Eu, Ce weak negative anomalies.In the Fuyun County aktas gold district use LA-ICP-MS zircon U-Pb method dating for plagioclase granite,indicate plagioclase granite zircon206Pb/238U weighted average of309.9±6.7Ma. The weighted average representative plagioclase granite crystallization age330-265Ma is also the orebody formation age of late Carboniferous-Early Permian, belonging to the East Junggar after collision.Forming material source aktas gold with several other deposits compare.this is have similar to material sources, chalcopyrite and pyrite δ34S values range is0.1‰～2.1‰,the average is-1.1‰, a lot of sulfur source deep source of mantle more. negative value added from the volcanic strata sulfur late. Mineral sources and mineralization in aktas gold mine into very complex, diversified, multi-phase and superimposed, inheritance, renewable.Then deep blind orebodies Prediction joint geophysical methods,and acquire a good prospecting light thin sections of ore, sequencing analysis of minerals produced. Concluded metallogenic regularity of the mineralized zone and mineralization model.