Volumetric characteristics and mineralogy of Ogwashi Asaba Formation, Niger Delta Basin Nigeria

I.E. Obiakonwa; S.E. Odumoso; O.W. Osisanya; A.S. Saleh; E.R. Ogheneochuko

doi:10.37745/bjmas.0603

Authors

I.E. Obiakonwa Department of Geology, Federal University of Petroleum Resources Effurun, Delta State
S.E. Odumoso Department of Geology, Federal University of Petroleum Resources Effurun, Delta State
O.W. Osisanya Department of Applied Geophysics, Federal University of Petroleum Resources Effurun, Delta State
A.S. Saleh Department of Petroleum Engineering and Geosciences, Petroleum Training Institute, Effurun, Nigeria.
E.R. Ogheneochuko Department of Geology, Federal University of Petroleum Resources Effurun, Delta State.

DOI:

https://doi.org/10.37745/bjmas.0603

Abstract

The aim of this study is to examine the Ogwashi-Asaba Formation's mineralogy and volumetric characteristics. During the fieldwork, a variety of well-preserved geological samples were collected from several locations within the research region. Standard laboratory and analytical procedures were used to the gathered samples. The sediments are medium to coarse grained, poorly sorted, almost symmetrical in terms of skewness, and leptokurtic in terms of kurtosis, according to the results of the various analyses. These characteristics typically indicate sediments from continental and/or mixed environments (transitional). Additionally, the petrographic examination reveals quartz to be the predominant mineral, making up over 85% of the entire mineralogy, suggesting a basement rock as the source. Other heavy minerals were also found, including sillimanite, zircon, and tourmaline. Overall, the study sheds more light on the lithology, different minerals, and depositional environment. Additionally, the study will help with the development and exploitation of natural resources, especially possible hydrocarbon deposits, and advance knowledge of the geology of the Niger Delta Basin.