The Geology and Economic Potentials of Migmatite Around Filin Shagari (Sheet 129 Kafin Madaki, Nw and Sw), Bauchi, Nigeria.

Abstract

The rocks in the study area were carefully mapped and studied to understand their 
relationships, geological setting, distribution, structures in order to harness their 
economic potentials. The area is located within Pan African Older Granite in the 
Northwestern region of Ganjuwa L.G.A. in Bauchi state and is accessible through 
Bauchi-Ningi Road about 15km off from Federal High way. Adopting the Sawyer 
classification of migmatite, the rocks within the research area have few 
morphologies predominantly the Banded orthogneiss, Diatexites, massive 
Pegmatite ridges, and pocket of Nebulite. Morphological changes in the rocks were 
critically observed due to partial melting rate and possible deformation due to shear 
stress which possibly acted on the banded orthogneiss that was tilted vertically. 
Geochemical analyses from XRF and studies indicate that the presence high 
concentration of Al2O3 and SiO2 indicating a possible metasedimentary source and 
with further analysis to ascertained the economic potentials of the rocks AAS was 
also conducted on some selected samples that indicated some signals of lithium 
mineralization. And from the field observation hydrothermal fluid tend to be 
occupying the foliation planes of these banded orthogneiss to form mineralization.