NIGERIAN JOURNAL OF SCIENCE AND ENVIRONMENT
Journal of the Faculties of Science and Agriculture, Delta State University, Abraka, Nigeria
ISSN: 1119-9008
DOI: 10.5987/UJ-NJSE
Email: njse@universityjournals.org
PALAEOPALYNOLOGY AND SEQUENCE STRATIGRAPHY OF THE MAMU FORMATION AROUND ORHUA, SOUTHWESTERN NIGERIA
DOI: 10.5987/UJ-NJSE.17.106.1 | Article Number: 64EBD420 | Vol.12 (1) - May 2013
Author: Odedede O.
Keywords: Palynology, Sequence stratigraphy, organic, nearshore, transgressive
A section of the Mamu Formation exposed at River Adewogun in Orhua, southwestern Nigeria, consists of dark grey, fissile, shale overlain by dark -brown, fine to medium- grained moderately sorted, thinly bedded sandstone of the Ajali Sandstone. The shale yielded a rich assemblage of spore and pollen of Late Maastrichtian age namely, Monocolpites marginatus, Longapertite marginatus, Constructipollenites ineffectus, Foveotrilete margaritae, Spinizonocolpites echinatus, and Ulmaideipites krempii. A back mangrove to nearshore palaeoenvironment of deposition is inferred. The sequence stratigraphy revealed a flooding surface with high organic productivity representing a short period of poor circulation associated with transgressive events.
Akande, S.O., Andreas, H. and Benrd, D. E. (1992). Upper Cretaceous and Tertiary coals from Southern Nigeria, Composition, Rank, Depositional Environments and their technological properties. Bulletin of the Nigerian Association of Petroleum Explorationists 7(1): 26-38.
Akkiraz, M.S., Kayseri M.S. and Akgun, F. (2008). Paleoecology of coal – Bearing
Eocene Sediments in Central Anatolia (Turkey) based on Quantitative
palynological Data. Turkish Journal of Earth Science 17: 320-332.
Allien, L.O. (2004). Pollen and spores (compilation). In: The Northwest European
Tertiary Basin (Vinken, R. ed), Geologisches Jahrbuch, 288-320.
Burke, K.C., Dessauvage, T.F. and whiteman, A.J. (1971). The opening of the Gulf of Guinea and the geological history of the Benue depression and Niger Delta. Nature 233 (38): 51 – 55.
De Swardt, A.J. and Casey, O.P. (1961). The Coal Resources of Nigeria. Geological Survey of Nigeria Bulletin no.28, 100pp.
Germeraad, J.J., Hoppings, C.A. and Muller, J. (1968). Palynology of Tertiary sediment from Tropical areas. Review of Paleobotany and Palynology. 3(4): 187-348.
Herngreen, G.F. and Chlonova, A.F. (1981). Cretaceous microfloral provinces. Pollen et Spore, 23: 235-245.
Jan du chene, R. (1980). Palynological study of the Tar sand, Upper Maastrichtian of the southwest Nigeria. Proceedings 4th International Palynological conference
(1976-77). Pp. 794 – 799.
Jardine, S. and Magloire, L. (1965). Palynologic et stratigraphic due Cretace des
Basins du Senegal et de Cote d’Ivoire. Memoires de Bureau des Recherches
Geologiques et Minieres 32: 187 –245.
Jimenez, J. A. (1984). A Hypothesis to explain the reduced distribution of the
Mangrove Pellicera rhizophorae. Biotropical 16(4): 304 – 308
Lawal, O. and Moullade M. (1986). Palynological Biostratigraphy of Cretaceous sediment in the Basin, N.E. Nigeria. Reviews of Micropaleontology 29: 61 – 83.
Murat, R.C. (1972). Stratigraphy and Palegeography of the Cretaceous and lower
Tertiary in Southeastern Nigerian In: African Geology (Dessauvagie, J.F.J. and Whiteman, A.J. ed.), University of Ibadan, Press, Ibadan, Nigeria, 251- 161.
Ojo, O. J. (1999). Depositional environments, palynological and organic geochemical studies of Gongola and Yola Basins, Nigeria. Implications for Hydrocarbon Potentials. Ph.D Thesis, University of llorin 355pp.
Reyment, R.A. (1965). Aspects of the Geology of Nigeria. Ibadan University Press,
Ibadan, 133pp
Shrank, E. (1994). Palynology of the Yessuma Formation in northern somalie. A study of the pollen, spores and associated phytoplankton from the Late Cretaceous
palmae province, Palaeotographica Abstract B, 231: 63 – 112.
Simpson, A. (1954). The Nigeria coal field, The Geology of part of Onisha, Owerri, and Benue provinces. Bulletin of Geological survey of Nigeria, no. 24, 85p.
Sultan, Z. I. (1985). Maastrichtian plant microfossils from the EI Mahamid area,
Nile valley, southern Egypt. Review of Micropalaeontology 28: 213 – 222
Tattam, C. M. (1944). A review of Nigeria stratigraphy. Reports of the Geological
Survey of Nigeria. 27pp.
Tucker, M. E .( 1988). Sedimentary Petrology. An introduction. Blackwell
Sceintific Publications, Oxford. 252pp.
Umeji, O.P. (2005). Palynological study of the Okaba coal mine section in the
Anambra Basina southern Nigeria. Journal of Mining and Geology 41 (2): 193-203.
Van der Hammen, T. (1963). A palynological study on the Quaternary of British
Guiana, Leidese Geologiche Mededelingen 29: 125-180.
Van Hoeken-Klinkenberg, P.M.P. (1964). A palynological investigation of some Upper Cretaceous sediments in Nigeria. Pollen et spores 6: 209-231