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Genesis and Evolution of Kongshan Baiyun Karst Cave in Lincheng County, Hebei Province
详细信息   
摘要
Kongshan Baiyun karst cave system in Hebei Province developed mainly in Carbonate strata of Middle Cambrian Zhangxia Formation.The horizontal distribution of the karst cave system was controlled by NNW,NE,and nearly EW faults.Baiyun karst cave system can be divided into three layer caves vertically,and every layer cave was connected by the passages which formed by erosion and corrosion following the steep faults.The first layer hall-like caves(paradise,the human world and netherworld) which developed along NNW faults formed in the mid-late stage of Early Pleistocene.The second layer reticula caves(maze and upper dragon palace) which developed tracking NNW and NE faults formed from the middle stage of Middle Pleistocene to the beginning of Late Pleistocene.The third layer zigzag Corridor-shape caves(lower dragon palace) following NE and NNW faults formed during the late of Late Pleistocene to the beginning of Early Holocene.Baiyun karst caves were damaged repeatedly by tectonic movements during the development of them.Nowadays,the disaster bearing capacity of Baiyun karst caves are very low.Therefore,protecting the cave structure stability and controlling the geological environment are important work at present.

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