摘要：The Gwon-Gwon area Pegmatite is hosted by the late Pan-African Leucogranite and the Migmatites. X-ray fluorescence base investigation was conducted on the twenty four (24) representative samples from the granites, pegmatites and migmatites. Major and trace elements analysis of the samples was carried out and the results shows that the granites are fertile, silicic (quartz-rich) and peraluminous (Aluminium Saturation Index - Al/CNK >1.1) suggesting an S-type origin, resulting in the crystallization of Al-rich minerals like Muscovite. It is therefore proposed that the development of the rare-metal pegmatite of Gwon-Gwon is related to the granite magmatism which is evident from the ternary plots, deducing a genetic link between the granitoids and the pegmatites even though there exist incomplete fractionation due to incomplete partial melting or poor sourcing of materials during anatexes. Also the clustering of samples suggest that fractionation was precisely partial, and that the paucity of rare elements in the migmatites precludes it from being the origin of the pegmatites.
