Biostratigraphy and Paleoecology of a Section of Shagamu Quarry (Southwestern Nigeria)
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Date
2015
Authors
Ojekunle, V.O
Talabi, O.H
Ojekunle, Z.O.
Shanxiong, C.
Adewole, A.A.
Journal Title
Journal ISSN
Volume Title
Publisher
Pearl Research Journals
Abstract
Twenty one representative samples collected from the quarry of West African Portland Cement Factory in Ogun State, 60km from Lagos state were treated for microfauna as well as studying the Lithological contents in other to establish the Biostratigraphy, Paleoecology and Lithology of the exposed strata. The treated microfauna content yielded Planktonic and Benthonic foraminifera along with Ostracods. These are studied to interpret the Biostratigraphy and Paleoecology of the study area. The Planktonic foraminifera species includes; Globorotalia aequa, Globorotalia acuta, Globorotalia pseudobulloides, Globigerina triculinoides. Benthonic foraminifera species includes; Bulimina asperoaculeata, Ammonia becarrii, Nonion costiferum, Bulimina paleocenica. The microfauna assemblages show diagnostic Paleocene to early Eocene age. This is established by the presence of Globigerina triculinoides and Globorotalia pseudobulloides as
indicative of Paleocene to early Eocene trends. Paleontological deductions and reconstruction were made on the basis of foraminifera and ostracod assemblage. The combinations of Planktonic and Benthonic as well as the lithological characteristics of the study area reveals that the environment of deposition may be inner neritic with middle neritic influence due to partial exposure to the sea and these could be correlated
with other areas in the world.
Description
Staff publications
Keywords
Stratigraphy , Micropaleoentogy , Biostratigraphy , Paleoenvironment , Research Subject Categories::TECHNOLOGY
Citation
Ojekunle, V.O. [Et...al] (2015). Biostratigraphy and Paleoecology of a Section of Shagamu Quarry (Southwestern Nigeria).