The discovery and significance of the corsite in the southern Altun fault, Xinjiang

The occurrence, petrology and geochemistry are dealt with in details for the corsite identified for the first time in the southern Altun fault, Xinjiang. The corsite appears generally in back-arc basins or on active continental margins as the mixtures derived from the consumed oceanic crust and overlying wedge-shaped (mantle)-derived rocks. The magmas of the corsite resulted from the direct melting of the consumed oceanic crust, and were often reacted with the wedge-shaped mantle-derived rocks during their migration to the surface, (accompanied) by crystallization and differentiation.