TITLE:
Lithostratigraphy and Inorganic Geochemical Studies of Cretaceous-Tertiary Lithofacies from Nigerian Three Inland Basin
AUTHORS:
Olugbenga A Boboye, Mayowa S Adeyemi, Henry. Y Madukwe
KEYWORDS:
Provenance, Inductively Coupled Plasma Emission Spectrometry, Inductively Coupled Plasma Mass Spectrometry, Environment
JOURNAL NAME:
Open Journal of Geology,
Vol.8 No.7,
July
30,
2018
ABSTRACT: Studies from selected samples from Chad (Kanadi-1, Albarka-1 and Tuma-1), Sokoto (Dange-1) and Dahomey Basins (Seme-1), were subjected to detailed lithostratigraphic description and inorganic geochemical studies with the aim of determining the provenance, tectonic setting, depositional environment and geochemical characterization. This involves detailed lithologic description, Inductively Coupled Plasma Emission Spectrometry (ICP-ES) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) through lithium metaborate fusion method. The lithologies of the study wells from Chad, Sokoto and Dahomey Basins comprise of mudstone, dark shale, brownish sandstone and light brownish shale; mudstone and dark brownish shale and clay, dark brownish shale, siltstone respectively. The geochemical result showed an abundance of SiO2 with an average of 75.05%, Al2O3 average of 12.51% (sandstone), values of 18.10% to 10.12% and 5.51% to 16.17% (shale). The abundance of Fe2O3 range from 2.12% to 8.56% while the other major elements have very low concentration. The high SiO2 content indicated a quartz rich adjoining source rock while low values of ratio K2O/Al2 O3 and Na2O/Al2O3, coupled with high average values (