MINERALOGICAL COMPOSITION OF AMPHIBOLITIC ROCKS AROUND OKAAKA , SOUTHWESTERN NIGERIA
Abstract
This project investigates the mineralogical composition of amphibolitic rocks located around Okaaka in Southwestern Nigeria. Amphibolite is a coarse-grained metamorphic rock primarily composed of amphibole minerals, particularly hornblende, and plagioclase feldspar, with potential occurrences of biotite and quartz. Through detailed petrographic analysis of thin sections, the study identifies the dominant mineral assemblages and their textural relationships, providing insights into the geological history and metamorphic conditions that influenced their formation. The findings suggest that these amphibolitic rocks are primarily derived from basaltic protoliths and have undergone significant metamorphism under conditions characteristic of the amphibolite facies. This research enhances the understanding of the regional geology and highlights the economic potential of amphibolitic rocks in terms of associated mineral resources, paving the way for future geological exploration in the area.
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