Abstract: This project is proposed as the Phase II project based on the success of the still ongoing Phase I project that was set up for conducting a comparative investigation of two active and most important continental collision zones, i.e., the Tibet/Himalaya and the Caucasus/Iran/Anatolia (CIA). I and my team members and international collaborators believe that we have achieved the two principal goals designed for the Phase I project, which are, respectively, to sustain our leading position in the study of Tibetan tectonomagmatic evolution and to create a competitive advantage in the study of the CIA orogeny. One of major research results we have obtained was that the eastern Tethyan “collisional” orogen was preceded in localities by accretionary orogenic processes that, like in the Central Asian Orogenic Belt (CAOB), have produced a substantial amount of juvenile continental crust. Both the Tethyan and Central Asian orogenic belts, therefore, appear to have undergone the “orogenic cycle” that evolved from an accretionary into a collisional system.
As the Phase I project, this newly proposed project will deal largely with key magmatic records in the study area by using a number of modern, “state-of-the-art” geochronological and geochemical tools. This new project, moreover, would investigate not only in the eastern Tethyan orogenic belt, but also in the CAOB and its present-day analogue in South East Asia (SEA), in hope to explore the continental tectonics and orogenesis in entire Asia over space and time. The results are expected to yield critical new constraints, derived particularly from geochemical perspectives, that could help comprehend our understanding of the magma generation, crustal growth, topographic change and major geodynamic processes through which continental orogeny evolves.
Central Asian Orogenic Belt (CAOB)
South East Asia (SEA)