Permian Stratigraphy And Mineralization In Background Analysis In Central And South Section Of Daxinganling Mountains

Central-southern Daxinganling Mountains in the south of the Ulan Hot,north of theXilamulun river,west of the Nenjiang river,east of the Daxinganling deepfaults on the ridge.The structure Location located in Northern China Plate(Ⅰ) geosyncline fold system in themiddle of the Daxinganling(Ⅱ)Jialidong geosyncline fold system from Wenduermiao toWenniuteqi(Ⅲ),It is located in superimposed secondd-order parts of the Paleo-Asiaticmetallogenic belt and Circum-Pacific metallogenic belt. The Permian stratigraphy has theextensive distribution in this area.It has an excellent conditions for mineralization,plentyMetallogenic Episodes and deposit Types.Daxinganling longer in the process of geological evolution, the formation of a thicksedimentary formation and the different types of volcanic nature, ranging from the scale,the different manifestations magmatic activity and associated internal and exogenousmetals, non-metallic minerals. Triassic strata exposed the region’s most extensive basementrocks, the thickness is greater than10km. A large number of statistics show that the areapolymetallic deposits of Permian strata (with) significant control effect has been foundmore than300deposits and more than70%mineralization related with the Permian, and alllarge and medium-sized deposits in The closely related, while others are directly producedin the formation. Area of copper or tin mineralization age of gold is mainly Yanshan bedearly, and lead-zinc polymetallic deposit of longer duration, from early to late Yanshan, butmainly in the late Yanshan. Therefore, the Permian strata of the Mesozoic basement ofendogenous metal-forming minerals has a distinct role. Mi Soe rock because of the sheareffect, the Permian strata forming elements occur in the activation, migration, accumulation,the formation of the initial source of ore. At the same time or later, Yanshan a volcanicmagma or volcanic hydrothermal activity carried by the mineral surplus has been added tothe initial source of ore formation on top of the formation of deposits (points). This is thecountry’s scholars copper polymetallic deposits in the region "dual mode" genesis. It isdifferent from the so-called multi-source, and ore-forming materials, multi-stage, it isbecause the initial source of ore formation is a dynamic metamorphism into mineralization,which is later superimposed a volcanic magma or volcanic hydrothermal activity. Permianvolcanic rocks in the region and is a submarine volcano-sedimentary construction, isshallow-bathyal arc-trench system volcanically active submarine sedimentaryenvironment of the volatile Rift Valley. Permian Dashizai group, composed of mineralLinxi Huanggangliang group and the high abundance of ore-forming elements to lay thematerial foundation, construction type and lithology is an important condition for ore. Permian marine volcanic-sedimentary rocks are exposed in the middle of the mainDaxinganling base formation is the main copper-rich ore deposits of metal rock, includingforming elements Cu, Pb, Zn, Ag, Sn have high abundances It is important to the formationof deposit material source. By south section of Daxing’anling representative of the strata ofPermian strata in-depth quantitative analysis and geochemical characteristics, the formationof the environment of formation, combined with the regional distribution of mineralresources, and further confirmed the Permian strata are Daxinganling region is an importantsource of ore.