Journal of Geology & Geophysics
Open Access
ISSN: 2381-8719
ISSN: 2381-8719
S.C. Odewumi
P.M.B. 2084, Jos
Nigeria
Research Article
Petrogenesis and Geotectonic Settings of the Granitic Rocks of Idofin-osi-eruku Area, Southwestern Nigeria using Trace Element and Rare Earth Element Geochemistry
Author(s): S.C. Odewumi and V.O. OlarewajuS.C. Odewumi and V.O. Olarewaju
The Idofin-Osi-Eruku area occur in the south-eastern margin of the southwestern sector of the Nigerian Basement Complex. Granitic rocks and early gneiss samples were studied geologically and geochemically using ICP-MS. The study focuses on the trace elements and rare earth elements geochemistry in determining the geochemical characteristics and geotectonic processes of formation of the granitic rocks. Geologically, Idofin-Osi-Eruku area is underlain by early gneiss, quartzite and marble which have been intruded by granite gneiss, porphyritic granite and fine to medium-grained granite of probable Pan-African (ca. 600Ma) age. Geochemical data indicate that the granitic rocks are Fe-rich potassic granites. The varying ratios of the incompatible elements of Rb/Sr ratios (0.664-1.388) in porphyritic granite, (0.338-2.390) in the fine to medium-grained granite and (0.593-1.509) in granite g.. View More»
DOI:
10.4172/2329-6755.1000109