Study On The Tectonics Features Of Eastern Linru Coal Field

Apply tectonics dissect & comprehensive study to research of Eastward Liuru Coalfield thrust-gliding tectonics on basis of gathering large seism & bore exploration data. Principal nature of Liuru Coalfield's tectonics is discovered. And theory of the tectonics control of coal is being perfected. The main conclusion is: At early and middle stage of Yanshanian.South-north ward stress field emergenced resuting from collision and interaction of the North China Plate and the South China Plate. Destoyed the primary boundary and resulted in a thrust-nappe zone developed in the orogen. The kind of Liuru Coalfield's tectonics include basement-thrust and sedimentary-thrust. The evolvement mode was ascending-folding. At later stage of Yanshanian and Himalayan Mountains tensile field instead of the compressive. Gliding Nappe appeared and developed southward result from great gravitational potential energy action in the north and middle of Liuru. Coalfield. Shear stress developed according with thrust-gliding action. Coal-rock bed flow was brought out. The viewpoints of the paper will great influence on coal exploration in the region.