Palynostratigraphy and Age of the Sequence Penetrated by the Kolmani River 1 Well in the Gongola Basin, Northern Benue Trough, Nigeria

Nwojiji C.N.^1, , Osterloff P.², Okoro A. U³ and Ukeri P. O²

¹Department of Geology and Exploration Geophysics, Ebonyi State University, Abakaliki, Nigeria

²Geological Services Team, Shell Petroleum Development Company (SPDC), Warri, Nigeria

³Department of Geological Sciences, Nnamdi Azikiwe University, Awka, Nigeria

Cite this paper

Nwojiji C.N., Osterloff P., Okoro A. U and Ukeri P. O. Palynostratigraphy and Age of the Sequence Penetrated by the Kolmani River 1 Well in the Gongola Basin, Northern Benue Trough, Nigeria. Journal of Geosciences and Geomatics. 2013; 1(1):15-21. doi: 10.12691/JGG-1-1-3

Abstract

Sediments from the Kolmani River -1 well in the Gongola Basin, Northern Benue Trough, Nigeria, have been analyzed for palynomorphs from 900 ft to 9140ft. The main lithologies encountered in the well consist of sandstones, sandy shales, mudstones and siltstones. The result of the pollen analysis shows that angiospermous pollens and pteridophyte spores dominate the five palynological Assemblage Zones delineated in the well. Each zone represents a time stratigraphic unit.correlatable to the identified lithostratigraphic units penetrated by the well. The Aquilapollenites minimus Assemblage Zone (Late Maastrichtian) correlates with the Kerri Kerri Formation. The Longapertites marginatus Assemblage Zone (Early Maastrichtian – Late Campanian) correlates with the Gombe Formation. The Dictyophyllidites harrisii Assemblage Zone (Early Santonian), the Syncolporites subtilis Assemblage Zone (Coniacian) and upper part of the Steevesipollenites binodosus Assemblage correlate with the Pindiga Formation while the lower Steevesipollenites binodosus Assemblage Zone (Turonian – Cenomanian) correlates with the Yolde Formation. The absence of the Late Santonian confirms the presence of the Santonian unconformity in the northern Benue Trough. Based on quantitative and qualitative biostratigraphic and sedimentological analyses, the overall depositional environment of the analyzed interval of the well varies from coastal plain/estuarine to open marine.

Keywords

palynostratigraphy, Benue Trough, palynomorphs, assemblage zones, late cretaceous, depositional environments, age dating and unconformity

Copyright

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References

[1]	Guiraud, R., Maurin, J.C. (1992). Early Cretaceous rifts of western and central Africa: An overview. Tectonophysics. 213, 153-168.
[2]	Obaje, N. G., Wehner, H., Scheeder, G., Abubakar, M. B., and Jauro A. (2004). Hydrocarbon prospectivity of Nigeria’s inland basins: From the viewpoint of organic geochemistry and organic petrology. AAPG Bulletin, v. 88, (3), 325-353.
[3]	Benkhelil, J. (1989). The origin and evolution of the Cretaceous Benue Trough (Nigeria).. Journal of African Earth Sciences. 8, 251-282.
[4]	Petters, S. W., 1982, Central west African Cretaceous –Tertiary benthic foraminifera and stratigraphy: Palaeontographica Abteilung v. 179, 1-104.
[5]	Guiraud, M. (1990). Tectono-sedimentary framework of the Early Cretaceous continental Bima Formation (Upper Benue Trough, NE Nigeria). Journal of African Earth Sciences 10, 341-353.
[6]	Dike, E .F. C. (2002). Sedimentation and tectonic evolution of the Upper Benue Trough and Bornu Basin, NE Nigeria. 38th Annual International Conference of Nigeria Mining and Geoscience. Society, Port Harcourt, Nigeria. (Abstract).
[7]	Allix, P. (1983). Environnements mesozoiques de la pattie nord-orientale du Fossel de la Bornu (Nigeria). Stratigraphie, sedimentologie, evolution geodynamique. Travaux des Lab. Sci. Terre, St. Jerome Marseille. 21, 1-200.
[8]	Whiteman, A.. (1982). Nigeria: Its petroleum geology, resources and potential: London, Graham and Trotman, 381 p.
[9]	Zarboski, P., Ugodunlunwa, F. Idornigie, A., Nnabo, P and Ibe, K. (1997). Stratigraphy and structure of the Cretaceous Gongola basin, Northeastern Nigeria. Bulletin des Centres de Recherches Exploration-Production. ElF-Aquitaine 21, 153-185.
[10]	Adegoke, O.S., Jan du Chene, R.E., Agumanu, E.A. and Ajayi, P.O. (1978). Palynology and Age of the Keri-keri Formation, Nigeria. Nigeria Revista Espanola Micropal. 10(2), 265-272.
[11]	Abubakar, M.B., Luterbacher, H.P., Ashraf A.R. and Ziedner M. A.S. (2011). Late Cretaceous palynostratigraphy in the Gongola Basin (Upper Benue Trough, Nigeria). Journal of African Earth Sciences. 60, 19-27.
[12]	Raine J.I., Mildenhall D.C., Kennedy E.M. (2008). New Zealand fossil spores and pollen: an illustrated catalogue. 3rd edition. GNS Science miscellaneous series No 4.
[13]	Edet, J.J. and E.E. Nyong. (1994). Depositional environments, sea-level history and palaeobiogeography of the late Campanian- Maastrichtian on the Calabar flank, SE Nigeria. Palaeogeogr. Palaeoclimatol. Palaeoecol. 102: 161-175
[14]	Salami, M. B. (1986). Palynomorph taxa of Lower Coal Measures deposits (Campanian-Maastrichtian) of Anambra Basin of Southeastern Nigeria: Nigerian Mining and Geoscience Society, Annual Conference Abstracts, p. 26.
[15]	Umeji, O.P. (2006). Palynological evidence for the Turonian/Campanian Boundary between the Abakaliki and Anambra Basin. Journal of Mining and Geology. 42 (2), 141-155.
[16]	Raymer, J.D. (2010). Cretaceous/Paleogene boundary biostratigraphy and palynofacies of the Alo-1 well, Southeastern Nigeria. Unpublished thesis. Missouri University of Science and Technology. U.S.A. 87p.
[17]	Ogala J.E, Ola-Buraimo A.O and Akaegbobi I.M. (2009). Palynological and palaeoenvironmental study of the Middle-Upper Maastrichtian Mamu coal facies in Anambra Basin, Nigeria. World Applied Sciences Journal 7 (12), 1566-1575.
[18]	Jardiné, S. and Magloire, L. (1965). Palynologie et stratigraphie du Crétacé des Bassins du Sénégal et de Côte d'Ivoire. Premier Colloq. Afr. Micropal., Dakar, 1963; Mém. Bur. Rech. Géol. Min. 32, 187-245.
[19]	Oboh-Ikuenobe, F.E., Yepes, O., ODP Leg 159 Scientific Party. (1997). Palynofacies analysis of sediments from the Cote de Ivoire-Ghana transform margin: preliminary correlation with some regional events in the Equatorial Atlantic. Palaeogeography, Palaeoclimatology, Palaeoecology. 129, 291-314.
[20]	Schrank, E. (1987). Palæozoic and Mesozoic palynomorphs from northeast Africa (Egypt and Sudan) with special reference to Late Cretaceous pollen and dinoflagellates. Berliner Geowissenschaftliche Abhandlungen, Reihe. 75 (1), 249–310.
[21]	Schrank, E., and M. I. A. Ibrahim. (1990). Cretaceous (Aptian-Maastrichtian) palynology of foraminifera-dated wells (KRM-1, AG-18) in northwestern Egypt: Berliner Geowissenschaftliche Abhandlungen, Reihe. 177p
[22]	Singh, C. (1964). Microflora of the Lower Cretaceous Mannville Group, East-Central Alberta. Alberta Res. Council, Bull. 15, 1-239.
[23]	Muller, J. (1978). Palynology of the Pedawan and Plateau Sandstone Formations (Cretaceous- Eocene) in Sarawak, Malaysia. Micropaleontology, Vol.14(1), 1-37.
[24]	Atta-Peters, D. and Salami, M. B.(2004). Late Cretaceous to Early Tertiary pollen grains from offshore Tano basin, Southwestern Ghana. Revista Española de Micropaleontología, 36(3), 451-465.
[25]	Oloto, I. N. (1994). Maastrichtian dinoflagellate cyst assemblages from Nkporo shale on the Benin Flank of the Niger Delta. Rev. paleob. and Palyn. (57), 173-186.
[26]	Van Hoeken-Klinkenberg P.M.J. (1964). A palynological investigation of some Upper Cretaceous sediments in Nigeria. Pollen Spores. 6 (1), 209-231.
[27]	Wilscht J.G. (1968). Paleocene – Lower Cretaceous Epoch palynological Zone Markers. EP Report 30309. 43p
[28]	Germaraad, J. H., C.A. Hopping and J. Muller. (1968). Basin, Nigeria. Palynology of Tertiary sediments from tropical areas. Rev. Paleobot. Palynol. 20(6), 189-348.
[29]	Ojo, O. J. and Akande, S.O., 2008. Microfloral assemblage, age and paleoenvironment of the Upper Cretaceous Patti Formation, southeastern Bida Basin, Nigeria: Journal of Mining and Geology 44: 71-78.
[30]	Okoro, A. U., Nwojiji, C. N. Osegbo F.N., Ndubueze V.O. (2012). Palynological analysis of late Cretaceous Nkporo Formation in the Afikpo Sub-basin, Southeast Nigeria. Asian Transactions on Science and Technology 2 (3), 35-46.
[31]	Onuigbo, E.N., Etu- Efiotor, J.O., and Okoro, A.U. (2012). Palynology, paleoenvironment and sequence stratigraphy of Campanian- Maastrichtian Deposits in the Anambra Basin, southeastern Nigeria. European Journal of Scientific Research 78, (3), 333-348.
[32]	Couper, R.A. (1964). British Misozoic microspores and pollen grains - a systematic and stratigraphic study. Palaentographica, Abst. B, Stuttgart, 103: 75-179.
[33]	Stover, L.E. and Partridge, A.D. (1973). Tertiary and Late Cretaceous spores and pollen from the Gippsland Basin, southeastern Australia. Proceedings of the Royal Society of Victoria 85: 237-286.
[34]	Lawal O. and Moullade M. (1986). Palynological biostratigraphy of the Cretaceous sediments in the Upper Benue Basin, N.E. Nigeria. Rev. Micropaleontol., 29:1 (1986), 61983.