Paleomagnetic, tectonic and geochronological constraints for Permian-Triassic oroclinal bending of the Mongolian collage.

The Central Asian Orogenic Belt con-stitutes the Kazakhstan and Mongolian oroclinal collages located between the Tarim-North China collage(TNC)to the south and the Siberian craton to the north(Fig.1a)[1].While the oroclinal bending of the western Kaza-khstan collage is widely accepted by the paleomagnetic and tectonic community,the oroclinal bending model of the eastern Mongolian collage is disputed[2,3].