$Chongqing Yunyang Longtan National Geopark is located in the fold belt between Huayingshan fault and Qiyao mountain fault, which is the southeast corner of the parallel valley area in the east of Sichuan and Yanshan period. The tectonic layers are integrated and pseudoconformed contact, The movement of Yanshanian is characterized by obvious up-and-down movement. The late Yanshanian fold structure is characterized by unconformable contact between the upper Cretaceous and the underlying strata, and the tectonic form is dominated by fold deformation. It is located in the fold belt between eastern Chongqing and the fold belt between Hunan, Hubei, Sichuan and Guizhou. The study area is located in the NE - SW tectonic belt, the northern margin and NW - DABA arc - shaped structure of miter, re - composite. For the Indo-Himalayan movement formed part of the thin-skinned structure. Mainly in the form of wide box-shaped syncline and narrow and narrow anticline structure, while in the anticlinal axis, due to the concentration of stress is easy to form a number of different sizes of joint fractures or pressure Torsional fracture.$

chongqing yunyang longtan national geopark deep river canyon rivers

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