Construe On Carboniferous Basin Of Jueluotag In Eastern Tianshan, Xinjiang

Jueluotage frame is an important component of the Tianshan . It extension 1000 km on east-west, and width of 20-30 km north-south. North to the North Kang Guer fault for the sector adjacent the Zhun Geer Plate, and sperated with Middle Tianshan by the Aqickudoc at South. Structural zone within orogeny strong, especially in the late Paleozoic, the development of the region's famous autumn Gemingtashi - Huangshan ductile shear zones and island arc Carboniferous , Accompanied by a basin of the formation and evolution. Since ancient tectonic plate with a new generation of convergence and landing in the stack orogeny involved in the region, good for the geological background to provide the conditions for mineralization, Jueluotage structure of the research is to bring academics have been issues of concern However, the focus of many is focused on since the Paleozoic Jueluotage structural zone and the attribution of the northern Kang Guer combined with the demonstration on the property. Xinjiang's Shanshan Xian Ya Ersha paper in the vicinity of Black 1:50 000 regional geological survey projects on the basis of Jueluotage structural belt of Late Paleozoic sedimentary basin formed - to study evolution, which started tectonic attributes of, The guide further exploration work.His predecessors in the area of the Carboniferous formation of a structure is unclear mixed pattern of the key, the paper of the Carboniferous formation accurately determining the Carboniferous Basin is the area understand the evolution of the first step. As early as the late Silurian Jueluotage structural zone will be in a context of tension, the internal development of a basin bimodal of sedimentary rocks, their isotopic age concordia age of the oldest age of 425±4Ma, as The age of 310±4Ma, that the traditional sense of Kang Guer foreigners in the Silurian scale has been formed, this understanding has also been confirmed that Jin-Yi Li, such as found in the area of cherts radiation is the Devonian fossil JI to the signs. Early Carboniferous by the expansion of oceanic crust into subduction, formed on both sides of the island arc, thus forming the Carboniferous Basin, from the Early Carboniferous - Late Carboniferous basin evolution of complex features of the deposition, until the Late Carboniferous closed.From the structural zone within the show features of Late Paleozoic rocks, its distribution there is an obvious area of the north and south of symmetry. Internal output in the basin of the bimodal volcanic rocks with construction, represents the early extension of the basin environment in the basin on both sides of the volcanic rocks in the combination of similar age is basically the same, belonging to the mid-Carboniferous, rock the earth To show that the chemical characteristics of island arc environment.Sedimentary basin characteristics are very obvious, from the island arc of the - of shallow water - a half deep - all of the deep sea, on behalf of a mature integrity of the sedimentary basin framework. Early Carboniferous of the carbonate rocks grievances on behalf of the construction of the offshore environment, medium-dry Dun rock group to the main deep-sea sediment, these data to study the formation and evolution Basin provide a basis.Comprehensive consider all aspects of geological factors, Jueluotage Carboniferous basin should be inter-arc basin, the basin produced from North Western subduction of the oceanic crust, you can say that it is based on the ancient Kang Guer rift basin on the basis of evolution From belonging to the North Western part of the Tianshan Mountains. Early Carboniferous Basin is the rift from widening of the oceanic crust into subduction compression stage, in the Carboniferous basin is a mature stage, the Late Carboniferous Basin is the return of the closing stages of evolution. This evolution of the power structure in the late Paleozoic from the closed of ancient Kang Guer Ocean, companied by North Tianshan ocean and the demise of the closure.Jueluotage structural zone between the Carboniferous arc basin at different stages of evolution of the different performance characteristics of the construction of the deposition, in the northern Tianshan Mountains is a limitation of the ocean basin, but it has a complex and multi-phase of volcanic activity and the characteristics of metamorphic , At the same time it also breeds a Jueluotage zone rich in mineral resources.