Some High-p-Subtype and low-P-Subtype F-Rich Granites in South China

摘要

The F-rich granites in South China could be distinguished as the high-P subtype and the low-P subtype according to their P_2O_5 contents. There are obvious differences in chemical composition of these two subtypes. The high-P subtype is strongly peraluminous and character- ized by low silica and very low REE contents, while the low-P subtype is weakly peraluminous and characterized by high silica and very high REE contents. There are also some differences in chemical compositions of feldspars and micas for these two subtypes.