THE CHARACTERISTICS OF GEOLOGICAL TECTONIC IN THE NORTH BELT OF BEISHAN

This paper proves that Beishan area belongs to Tarim plate north margin, and discusses evolutionary series of geological tectonics. Beishan area can be divided into three belt; north belt, intermediate belt, south belt. It can be divided in to four stages; forming ancient continental crust in Precambrian,island arc and rifting -closure within continental margin in Caledonian, tectono-magmatic activation succeeding as arc and second rifting-closure in Her-cynides, and fault block disparity elevator in Mesozoic-Cenozoic.