List of Staff

Dr. Ogechukwu Caroline Onyemesili is a reader in the Department of Geology, Chukwuemeka Odumegwu Ojukwu University. Anambra State, Nigeria. Onyemesili is a highly competent and practical geoscientist with sound knowledge in source rock and crude oil characterization, stratigraphy, groundwater and environmental studies. I am a very positive, innovative, flexible and proactive individual with clear and effective interpersonal communication skills. She can work on own initiative or as a member of a diverse team. I demonstrate commitment to quality standards. I have the wit to assess the scope of any given problem and or project and make viably informed decision(s). I have thrived in busy environments, working alongside dedicated professionals to meet tight deadlines and high standards.
I am currently the departmental undergraduate seminar coordinator. I have supervised several undergraduates and postgraduate projects, and students’ industrial attachments in related industries.
Onyemesili has published many scientific, natural science research papers, journal and book chapter. She has attended many conferences and workshops. I am reviewer board member to both international and local journals. I am an active member of COMEG (Council of Nigeria Mining Engineers and Geoscientist), NMGS (Nigerian Mining and Geosciences Society), NAPE (Nigeria Association of Petroleum Explorationists), SPE (Society for Petroleum Engineers), SPEM (Society for Sedimentary Geology). I was the publicity chairman of the organizing committee of 3rd Faculty of Physical Science International Conference (FAPSCON 2021) held at Chukwuemeka Odumegwu Ojukwu University and secretary of 10th NAPE - NMGS Mini-Conference, 2021 held at Nnamdi Azikwe University, Awka. Onyemesili is currently the Chairman, Students’ Welfare and Activities Committee

Anambra State University 2014
University of Nigeria Nsukka 2008
University of Nigeria Nsukka 2004

Journal Articles
1. Obi, G.C and Onyemesili, O.C., 2010. Compaction and Porosity Evolution of Campanian-Maastrichtian Sandstones, Anambra Basin, Nigeria. Journal of Applied Sciences, Vol. 12 No. 3, Pp. 9388-9404.
2. Chiaghanam, O.I., Chiadikobi, K.C., Ikegwuonu, O.N., Omoboriowo, A.O., Onyemesili, O.C., Acra, E.J. 2013. Palynofacies and Kerogen Analysis of Upper Cretaceous (Early Campanian to Maastrichtian) Enugu Shale and Manu Formation in Anambra Basin, South-Eastern, Nigeria. International Journal of Scientific and Technology Research, Vol. 2, No. 7. ISSN 2277-8616. Pp. 225-229.
3. Chiaghanam O.I., Chiadikobi, K.C., Ikegwuonu, O.N., Omoboriowo, A.O., Onyemesili, O.C. and Yikarebogha, Y. 2014. Sedimentology and Sequence Stratigraphy of the Eocene Nanka Formation (Ameki Group): An Evaluation of Ogbunike Reference Locality in Anambra Basin, South-Eastern, Nigeria. IOSR- Journal of Applied Geology and Geophysics. Vol.2, Issue 3, Pp. 1-10.
4. Chiaghanam O.I., Chiadikobi, K.C., Ikegwuonu, O.N., Omoboriowo, A.O., Onyemesili, O.C. and Yikarebogha, Y. 2014. Source rock potential and Thermal Maturity of the Eocene Nanka Formation (Ameki Group) in Anambra Basin: An Appraisal of Ogbunike Reference Locality, South Eastern, Nigeria. IOSR- Journal of Applied Geology and Geophysics. Vol.2, Issue 3, pp. 11-17.
5. Onyemesili, O.C. and Obi, G.C. 2017. Stratigraphy and Hydrocarbon Prospects of the Danian Succession, Southeast-Nigeria. COOU Journal of Physical Science, Vol.2, No. 1, Pp. 63-75
6. Ekwenye, O. C., Nichols, G., Nwajide, S.C., Obi, G.C., Onyemesili, O. C. 2017. Stratigraphic evolution of an Eocene tide-dominated estuarine system: Implications for paleoenvironmental and sequence stratigraphic interpretations. Journal of African Earth Sciences. Vol. 10, No. 16. ISSN 1866-7511 Pp.1-22
7. Ekwenye, O. C., Nichols, G. J., Okogbue, C. O., Dim, C. I. P. and Onyemesili, O. C. 2017. Facies architecture and reservoir potential of a macro tidal estuarine system: Eocene Ameki Group, south-eastern Nigeria. Advances in Petroleum Geosciences’ Research in Nigeria. Pp. 368 – 396.
8. Ekwenye, O. C. and Onyemesili, O. C. 2018. Unravelling the Sedimentary Facies of the Tidal Channel and Tidal Flat Deposits within a Macro tidal Estuarine Setting: The Nanka Formation, South-Eastern Nigeria. Pacific Journal of Earth Science and Technology. Vol. 19 No. 1. Pp 367 – 388
9. Chiadikobi, K.C., Chiaghanam, O.I., Onyemesili, O.C. and Omoboriowo, A.O., 2018. Palynological study of Campano-Maastrichtian Nkporo Group of Anambra Basin, Southeastern Nigeria. An international Scientific Journal. No. 20 ISSN 2543 – 5436. Pp. 31 -53.
10. Onyemesili, O.C. and Odumodu, C.F.R. 2019. Pebble Morphometric Study of the Ogwashi-Asaba Formation at Ubakala and Environs, South-eastern Nigeria. Journal of Natural Science Research. Vol.9, No. 6, ISSN 2224-3186 Pp. 36-50
11. Ekwenye, O. C. and Onyemesili, O.C. 2019. A Review of the Heavy Mineral Provinces of the Paleogene Sediments, South-Eastern Nigeria: Factors Controlling the Distribution of the Heavy Minerals. Pacific Journal of Science and Technology. Vol. 20. No. 2. Pp. 289 – 308.
12. Onyemesili, O.C., 2019. Lithofacies and Depositional Environments of Reservoir Intervals Penetrated by the Ludo Oil well in the Coastal Swamp II Depo-Belt, Niger Delta, Nigeria. Oriental journal of Science and Engineering Vol. 1, ISS-1, Pp. 38 – 63.
13. Onyemesili, O.C., 2020. Stratigraphy and Contact Relations of the Nsukka Formation in the Anambra Basin, South-Eastern Nigeria. COOU Journal of Physical Science, Vol. 3, No. 1, Pp. 426 - 439.
14. Onyemesili, O.C., and Odumodu C.F.R., 2020. Hydrocarbon Maturation Modeling of Paleocene Source Rocks of the Imo Formation in the Calabar Flank, South Eastern Nigeria. COOU Journal of Physical Science, Vol. 3, No. 1, Pp. 404 – 418.
15. Ekwenye, O.C., Okeke, K. K. Otosigbo, G.O., and Onyemesili, O. C., 2020. An Insight into the Stratigraphic and Paleogeographic Evolution of the Paleogene Sedimentary Successions of the Niger Delta. Jordan Journal of Earth and Environmental Sciences. Vol. 11 No. 2, ISSN 1995=6681. Pp 146 – 156.
16. Onyemesili O.C., Egbueri J. C., and Ezugwu C. K. 2020. Assessing the Pollution Status, Ecological and Health Risks of Surface Waters in Nnewi Urban, Nigeria: Implications of Poor Waste Disposal. Environmental Forenscis. (https://doiorg/10.1080/15275922.2020.185054)
17. Egbueri, J.C., Ezugwu, C.K., Unigwe, C.O., Onwuka, O.S. Onyemesili, O.C., and Mgbenu, C.N., 2020. Multidimensional Analysis of the Contamination Status, Corrosivity and Hydrogeochemistry of Groundwater from Parts of Anambra Basin, Nigeria. Journal of analytical letters. (https://doi.Org/10.1080/00032719.2020. 1843049
18. Odumodu C.F.R. and Onyemesili O.C., 2021. Eocene –Oligocene Stratigraphy and Industrial Potentials of Lignite Deposits in Anambra State, Nigeria. . Oriental Journal of Science and Engineering.Vol. 2, ISS 1, Pp 1 - 20
19. Ezeani S. U., Onyemesili, O.C., and Obi, G.C. 2021. Hydrogeochemistry and bacteriological assessment of surface water resources contamination in Nnewi and environs. Oriental Journal of Science and Engineering. Vol. 2, ISS 1, Pp 42 -57
20. Onyemesili, O.C., and Odumodu, C. F. R. and Adoro, N., 2020. Geochemical Characterization and Industrial Applications of Lignite deposit in parts of Anambra State. Journal of Natural Science Research.
21. Ogbuagu, F.U., and Onyemesili, O.C., 2020. Evaluation of Geotechnical Characteristics of Foundation Materials along Ekwulobia-Oko–Ufuma–Umunze Road, Anambra State, Southeastern Nigeria. Proceedings of Nigerian Mining & Geosciences Society (NMGS), Ibadan. Pp 458 - 461

Microsoft Office including: Word, Excel and PowerPoint
Experience in Geologic field mapping
Extensive experience of using web-based research systems.
Excellent professional standards: detail oriented, analytical and critical thinker, solution-focused and excellent management and organisational skills.
Ability to work independently and effectively as part of a team.
Ability to multi-task, manage conflicting demands and work to deadlines, under pressure.
Excellent communication skills, with strong time-management and organisational skills.
Ability to help in adding value to any world class organization/institution using integrated geochemical techniques, and software skills
Ability to coordinate and manage projects or assigned work with absolute commitment to professional excellence, quality, safety, and environment.