关键词: 中新元古代, 热－构造事件, 造山带

Abstract: Up-to-date some studies proved that there are varieties of metamorphic sedimentary-volcanic rocks, plutonic rocks and structural traces of Meso- and Neoproterozoic along north margin of the North China craton. The tectonic history of Meso-Neoproterozoic in the studied area could be summarized as follows: the extensional breaking in the early stage of the Meso-Proterozoic, the compression convergencing in the late stage of the Meso-Proterozoic, the extensional breaking in the early stage of the Neoproterozoic-Lower Paleozoic and the compression subducting in the late stage of the Lower Paleozoic. They are identified four stages representing the Meso- and Neoproterozoic-Paleozoic hot tectonical events and the ages obtained by analyzing the rock samples from north margin of the North China craton. The orogenic belt in late stage of the Meso-Proterozoic along north margin of the North China craton, mainly consists of ophiolite relics of Kaiyuan rock group, island arc volcanic rocks of Weijiagou and Bainaimiao groups, and S-type granites in the late stage of the Meso-Proterozoic. The orogenic belt in late stage of the Meso-Proterozoic along north margin of the North China craton related to other Meso-Proterocoic orogenic belts on cratons of the world will provide important constraints for reconstructing the Rodinia super-continent.

Key words: Meso-NeoProterozoic, hot-tectonic event, orogenic belt