The nature of parentage of talc bodies from the northern part of Ilesha schist belt was investigated and compared with altered ultramafic-Komatiite. Observations from thin sections revealed altered serpentine with included nodular olivines. Talc, chlorite and tremolite were other minerals present. Geochemical analysis of five (5) rock samples taken from talc bodies outcropped from both sides of the Ifewara Shear Zone (ISZ) revealed magnesia (MgO) > 18% and Al O /TiO values ~ 40. MgO values ranged from 23.01-32.79 wt. %. Al O and 2 3 2 2 3 TiO values averaged 2.34 and 0.04wt. % respectively. Mg# values (87.93-90.71) supported ultramafic 2 precursor. Major oxide variation plots against magnesia revealed negative correlation in Al O TiO vs MgO. Co, 2 3, 2 V, Ni and Cu concentrations were significantly higher than the incompatible elements. Maximum Ni and Co values were 1765.10 ppm and 108.60 ppm respectively. The rare earth element (REE) concentrations showed relative enrichment in light rare earth element (LREE). The values of Gd/Yb(N) ranges from 0.94-1.86. The Gd/Yb(N) and Al O /TiO suggested that the precursor to the talc bodies were possible Gorgona group III 2 3 2 type komatiite. Plot of V vs Ti indicated an Island arc environment for the emplacement of these talc bodies.
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