TGIR analysis on the inhomogeneous MME from the Luogang and Wangmu granite bodies in Guangdong indicates that water content of a MME decreases from its core to rim

scilicet the rim volatile fluid of MME are more than the core

suggesting temperature difference between center and edge during formation of MME. The authors consider that formation of the zonal structure of MME should be related to distribution of water within the MME and on which

further discuss the formation temperature of enclaves between 715-850 °C .