Late Paleozoic to Early Triassic multiple roll-back and oroclinal bending of the Mongolia collage in Central Asia

Abstract

The Central Asian Orogenic Belt (CAOB) provides an opportunity to address the fundamental framework of paleogeography and tectonic relationships between the diverse components in this tectonic collage. A large-scale complex roll-back, active from the Carboniferous to Permian or even Late Triassic, facilitated the formation of the Mongolian collage. Tectonic styles and the architecture of accretionary orogenic belts such as the CAOB are characterized both by the amalgamation of multiple terranes and oroclinal bending. The systematic anatomy of multiple roll-back processes and their interactions with adjacent collages shed light on the evolving orogenic architecture and the crustal accretionary history of orogens.

Biography

Wenjiao Xiao is a Professor at Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China. He is interested in tectonics of orogenic collages and continental crust, structural analysis of ophiolites and accretionary complexes, and accretionary orogenesis and metallogeny, with current focuses on the accretionary orogenesis of the Central Asia Orogenic Belt. Prof Xiao is an elected GSA (Geological Society of America) Fellow and an associate editor for GSA Bulletin.