A DISCUSSION ON THE BASIC TEXTURAL STYLE OF THE NAPPE TECTONIC BELT IN LONGMEN MOUNTAINS
Nappe tectonic in Longmen Mountains is a typical one. There are thrust nappe and fold nappe in the tectoniC style,nappe structure and glidins nappe in the manner of formation,and nappes with piggy back type of overstep type in the sequence of formation. A special superposed model between the nappes and gliding nappe is the popular tectonic style in the front of the northeastern region of Qinghai-Tibet plateau. This kind of tectonic feature is formed in close relation to the evolution of the Yangtze platform and the Tethys. It iS an important feature of nappe tectonics in the inner continent orogenic belt.