MECHANISM AND OWNERSHIP OF TECTONIC DOMAIN OF THE CENOZOIC NW-TRENDING SHEAR TECTONIC SYSTEM IN CHINA AND ITS SOUTH WEST ADJACENT AREA

The Cenozoic NW-trending compress-shearing tectonic system is well-developed in the west China and extends intermittently to the east China. Although the NW-trending tectonic system consists of NW striking folds,WNW and NNW trending compress-shearing faults as well as NEE trending tensional-shearing faults,the tectonic direction is better developed in the WNW because of the effect of partial conjugate shearing. The formation of the Cenozoic NW-trending System,which usually is superimposed on the Paleo-Hexi System or "the West Domain System",is related to intraplate deformation resulting from the collision between the India Plate and the Europe-Asian Plate since the end of the Late-Cretaceous or the Eocene.