Paleozoic igneous activities in south-central Mongolia

Abstract

The Central Asian Orogenic Belt resulted from amalgamation of voluminous subduction – accretionary complexes of Late Neoproterozic to Mesozoic time. Considering geology and geochemistry of the intrusive rocks, the subduction - zone and collision - zone magmatism occurred in the Hangay batholith and the Lake zone, respectively. In other words, the landmass of south - central Mongolia would have been resulted by the specific geotectonics through the formation of volcanic arc due to the oceanic crust subduction and the microcontinent collision during the Paleozoic.