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Thrust Systems in the Eastern Segment of Daqingshan, Inner Mongolia
Author: ZhangHaoRan
Tutor: LiuWenCan
School: Chinese Geology University (Beijing)
Course: Physical Geography
Keywords: Inner Mongolia Daqingshan eastern section The overthrusting structure system Tectonic pattern Colliery
CLC: P542
Type: Master's thesis
Year: 2009
Downloads: 172
Quote: 1
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Abstract
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Daqingshan eastern section is located in central Inner Mongolia , North China edge belonging to the Siberian Plate and North China Plate collision zone areas . The study area is located Siziwangqi southern the exposed strata the Archean Wula Hills, New Archean Seerteng Hills , the Paleoproterozoic horse store group , Neoproterozoic Sinian even that dry group Paleozoic the sector the Carboniferous tied horse pile group , Permian Hongshan group , brain package Xiagou , the old Wopu group , the Mesozoic Jurassic 5 , when the trench group , Daqingshan Cretaceous Lisangou ; magma granodiorite rock Permian , Triassic granite and late Jurassic moyites . Field geological survey found that the pattern of the main structure of the area affected by a general of EW trending roughly to the thrust from the south to the north overthrust nappe structure ( Daqingshan inverse red nappe fault system , represented by its something to extend of at least 120 km, the the nappe distance is greater than 11 km) under the control of the other disk supplemented the overthrusting structure from north to south overthrust ( Yangshan overthrusting fault system , represented by something in the region extending at least 70 km , thrusting distance of 7.1 km). Nappe rock seats multiple eroded to the main sections and footwall strata , to visible developmental the many klippe and tectonic window . Daqingshan thrust nappe tectonic system mainly consists of a series of different sizes to scale roughly east to extend the overall southward tilt imbricate overthrusting fault , gripping thrust faults between tectonic schist stacked together in a variety of styles and thrust faults folds the overthrusting fold body composition. The thrust -nappe system may be a regional north-south compressional tectonic stress field and the deep structure role of the control mechanism of its formation and the North China Plate and the Siberian plate collision the stitching process closely related . I believe that the nappe formation of at least two periods of Indosinian and Yanshan movement early . Region are inverse under the seat cover rock the Carboniferous Shuanma pile group (P1s) and Jurassic strata five when the ditch group (J1-2w) with seam lines , a few sections of the coal-bearing strata tectonic window \better outcropping coal seam thick oriented area of potential energy base .
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CLC: > Astronomy,Earth Sciences > Geology > Structural Geology > Tectonic movement
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