Geochemical Characterization of Mineralized Pegmatites around Wowyen Areas, Akwanga, Northcentral Nigeria

Abstract

This study aims to account for the petrogenesis and mineralization of pegmatites around the Wowyen area, northcentral basement complex,Nigeria. Field studies, petrography and whole rock geochemistry (Major oxides were estimated by X-Ray Fluorescence while the trace elements were estimated by Inductively Coupled Plasma Mass Spectrometry) where the methods adopted. The pegmatites around Wowyen area are emplaced in the remobilized belt of the Nigerian Basement complex. They are predominantly complex pegmatites (rare-metal pegmatites) which are intruded in the biotite-muscovite gneiss while the simple pegmatites intruded more in the migmatitic banded gneiss. The major components of the complex pegmatites are quartz, albite and muscovite and tourmaline.The accessory constituents are garnet; ilmenites; cassiterite-columbitetantalite oxides in contrast to quartz, microcline and biotite of the simple pegmatites. The complex pegmatites show higher peraluminous than the simple pegmatites, however, higher fractionation is observed in the complex pegmatites than the simple pegmatites. The complex pegmatites are rather enriched in rare elements such as Li, Rb, B, Cs, Sn, Nb, Be and Ta and show low ratios in Al/Ga and K/Rb than the simple pegmatites. The pegmatites are likely product of sedimentary origin and originated from post-collisional tectonic event.

Petrography and Geochemical Signatures of Pegmatites from the Southeastern Part Comoé Basin (South-East Côte d'Ivoire, North Alépé)

“…Muscovites from Aboisso-Comoé and Songan forest samples show enrichments in LILEs (Cs, Rb, K...). Micas composition in LILEs is used to define trace element enrichment trends for evolved granites and pegmatites [8,[67][68][69][70][71]53].…”

Editorial for Advances in Geological and Geotechnical Engineering Research

“…Anthony Chukwu [3] analyzed geochemical characterization of rare-metal pegmatites in Wowyen areas of Akwanga, Northcentral Nigeria. results show that the pegmatites are highly peraluminous, and enriched in Rb, Li, Cs, B, Sn, Be, Nb and Ta, low in K/Rb and Al/Ga ratios.…”

Geology and Geochemistry of Pegmatites of Ogodo – Odobola, North Central Nigeria: A Status Review

“…As such has generated lots of interest to study because of the various metals they host among other industrial minerals. Series of research works have been carried out on Nigerian pegmatites by different authors (Anthony, 2022;Tanko and Dzigbodi-Adjimah, 2021;Tanko et al, 2020;Aderogbin and Okunlola (2020). Pegmatites possess unique petrology and mineralogy making these rock bodies interesting to study and economically important to our society.…”