IJSTR

International Journal of Scientific & Technology Research

IJSTR@Facebook IJSTR@Twitter IJSTR@Linkedin
Home About Us Scope Editorial Board Blog/Latest News Contact Us
CALL FOR PAPERS
AUTHORS
DOWNLOADS
CONTACT
QR CODE
IJSTR-QR Code

IJSTR >> Volume 2- Issue 1, January 2013 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Palynological Characterization Of The Tertiary Offshore Emi-1 Well, Dahomey Basin, Southwestern Nigeria.

[Full Text]

 

AUTHOR(S)

Adeigbe O.C, Ola-Buraimo A.O, Moronhunkola A.O.

 

KEYWORDS

Key words: Palynological zones, Paleoenvironment, Freshwater, Dinoflagellate and Swampy

 

ABSTRACT

ABSTRACT:- Palynological investigation was carried out on a sedimentary sequence of Emi- 1 well ranging in depth from 900-8000ft (247-2440m) with a view towards determining the lithological sequence, palynological zones, relative age and paleoenvironment of deposition.Three main palynozones were identified, these include Magnastriatites howardii/P680 zone characterized by quantitative base occurrence of Pachydermites diederixi and co-occurrence of Borteria sp, Magnastritites howardii and Racemonocolpites hians; dated Early Miocene; Crassoretitriletes vanraadshooveni/P700 zone 2 characterized by assemblage of Crassoretitriletes vanraadshooveni, Belskipollis elegans, Verrutricolporites rotundiporus, and Psilatricolporites crassus, dated Middle Miocene and Echitricolporites spinosus/P820 and Younger zone 3, characterized by co-occurrence of Multiareolites formosus, Anthocerus sp and Nymphae lotus, dated Late Miocene age. Paleoenvironmental deductions were based on the relative abundance of mangrove pollen to grass pollen, presence of environmentally diagnostic dinoflagellates and incursion of freshwater algae into the setting. The paleoenvironment varies from fluvial, swampy through marginal marine to open marine setting.

 

REFERENCES

[1] H.A. Jones, and R.D. Hockey, “Geology of Parts of Southwestern Nigeria”. Geological Survey Bulletin. No 31, 87p, 1965.

[2] O.S. Adegoke, , T.F.J. DessauvagieKogbe, C.A. Kogbe, F.A.G., Ogbe, “The Type Ewekoro (Paleocene) of western Nigeria, Biostratigraphy and Microfacies” In: 4th Collique African de Micropaleontologie, Abidjan, pp.27-39, 1970.

[3] E.A. Fayose, “Stratigraphical Paleontology of Afowo-1 well, Southwestern Nigeria” Journal of Mining and Geology, vol.5 (1&2), pp.1-9, 1970.

[4] F.G.A. Ogbe, “Stratigraphy of Strata exposed in the Ewekoro Quarry site Southwestern Nigeria”. In: T.F.J Dessauvagie and A.J.Whiteman (eds).African Geology, University of Ibadan Press, pp. 305-324, 1970. .

[5] C.A., Kogbe, 1976. “The Cretaceous and Paleocene sediments of Southwestern Nigeria”. In: C.A. Kogbe (ed), Geology of Nigeria, Elizabethan Publishing Company , Lagos, pp.50-61, 1976.

[6] B.D. Ako, O.S. Adegoke, and S.W. Petters, “Stratigraphy of Oshosun Formation in Southwestern Nigeria”. Journal of Mining and Geology, vol. 17, pp. 99-106, 1980.

[7] M.E. Omatsola, and O.S. Adegoke, “Tectonic Evolution and Cretaceous Stratigraphy of the Dahomey Basin”. Journal of Mining and Geology. vol.18 (1), pp.130-137,1981.

[8] M.B. Salami, “Upper Senomian and Lower Tertiary Pollen grains from the southwestern Nigeria sedimentary basin”. Revisa Espanol De Micropaleontogia. Vol 17, no. 1, pp5-26, 1983,

[9] M.B. Salami, “Late Cretaceous and Early Tertiary Palynofacies of Southwestern Nigeria”. Revista de Espanol Micropaleotogie, vol.16, pp. 415-423, 1984.

[10] O.K. Agagu,. “A Geological guide to bituminous sediments in Southwestern, Nigeria”. Department of Geology, University of Ibadan field guide, unpublished, pp.1-16, 1985.

[11] J.I. Nwachukwu, O.S. Adegoke, and M.B. Salami,. “Micropaleontology of the Upper Cretaceous and Lower Tertiary of Bodashe-1 and Ilepaw-1 wells, Southwestern Nigeria”. Journal of Mining and Geology, vol. 29(2), pp.163-170, 1992.

[12] E.A. Okosun,. “A Review of the Cretaceous Stratigraphy of the Dahomey Embayment”, West Africa. Cretaceous Research. London, vol. 11, pp. 17-27, 1990.

[13] C.M. Ekweozor, “Geochemistry of oil sands of southwestern Nigeria: In B.D Ako and E.I Enu (eds) Occurrences, utilization and economics of Nigeria Tar sands”. Nigeria Mining and Geosciences Society Publication on tar sands workshop, Ago-Iwoye. Pp 50-62, 1990.

[14] J.O. Idowu , S.A. Ajiboye, M.A. Ilesanmi and A. Tanimola, “Origin and Significance of Organic Matter of Oshosun Formation,Eastern Dahomey Basin Southwestern Nigeria”. Journal of Mining and Geology, vol.29, pp.9-16, 1993.

[15] M.E. Nton, “Sedimentology and Geochemical Studies of rock units in the Eastern Dahomey Basin, Southwestern Nigeria”. Ph.D Thesis, University of Ibadan, Ibadan, unpublished, 315p, 2001.

[16] A.A. Elueze and M.E. Nton, “Organic geochemical appraisal of limestones and shales in part of eastern Dahomey Basin, southwestern Nigeria”. Journal of Mining Geology, vol. 40(1), p29-40, 2004.

[17] O.A. Adekeye., S.O., Akande, R.B. Bale and B.D. Erdtmann, “Carbon and Oxygen Isotopic Compositions and Diagenesis of the Ewekoro Formation in the Eastern Dahomey Basin, Southwestern Nigeria”. Journal of Mining and Geology, vol.41 (1), pp.87-95, 2005.

[18] A.O. Ola-Buraimo and M. Adeleye, “Palynological characterization of the Late Maastrichtian Ute Coal measure deposit, Southwestern Nigeria”. Science Focus, vol. 15, (2), pp. 276-287, 2010.

[19] P.H. Ikhane, A.J. Akintola, A.O. Ola-Buraimo, O.O. Oyebolu, G.O. Akintola and B.T. Adesanwo, “Palynology and Paleoenvironmental reconstruction of the Early Maastrichtian Afowo Formation, Dahomey Basin, southwestern Nigeria”. Science Journal of Environmental Engineering Research, ISSN: 2276-7495; vol. 2012 (2012), Issue 2, 8p

[20] A.O. Ola-Buraimo, O.A. Oluwajana, and A. Olaniyan, “Palynological investigation of a Type Section of Early Maastrichtian Arimogija-Okeluse Shale sequence, Dahomey (Benin) Embayment, southwestern Nigeria”. International Journal of Science and Emerging Technologies, vol. 3, (1), pp. 37-45, 2012.

[21] R.A. Reyment, “Aspects of the Geology of Nigeria”. University of Ibadan Press, Nigeria”. 145p, 1965.

[22] O.S. Adegoke,. “Eocene Stratigraphy of Southern Nigeria”. Bulletin Bureau de research geologic et Miners Memoirs, vol.69, pp. 22-48, 1969.

[23] H.G. Billman, “Offshore Stratigraphy and Paleontology of the Dahomey Embayment”. Proc. of 7th African Micropaleontology Colloquium, Ile-Ife, Nigeria. pp. 2-42, 1976.

[24] S.J.L Coker, and J.E. Ejedawe, “Dynamic interpretation of organic matter maturation and evolution of the oil generative window”. AAPG Bulletin, vol. 68(8), p1024-1028, 1983.

[25] A.J. Whiteman, “Nigeria: Its Petroleum Geology Resources and Potential”,vol. 1 and 2, London. Graham an Trotman pp 176-238, 1982 .

[26] H.D. Klemme, “Geothermal Gradient, Heat Flow and Hydrocarbon Recovery”. In: A.G Fischer and S. Judson (eds). Petroleum and Global tectonics. Princeton University Press, pp.251-304, 1975.

[27] D.R. Kingston, C.P. Dishroon and P.A. Williams, “Global Basin Classification System”. American Association of Petroleum Geologists Bulletin. vol. 67, pp.2175-2193, 1983.

[28] K. Burke, T.F.J. Dessauvagie, and A.J. Whiteman, “Geological history of the Benue valley and adjacent areas”. In African Geology: Creatceous rocks of Nigeria and adjacent areas. University of Ibadan press, Ibadan, Nigeria. pp. 187-205, 1971.

[29] J.H., Germeraad, C.A. Hopping and J. Muller, “Palynology of Tertiary Sediments from Tropical areas”. Review of Paleobotany and Palynology 6, pp. 189-348, 1968.

[30] B.D. Evamy, J. Haremboure, P. Kamerling, W.A. Knaap, F.A. Molloy and P.H. Rowlands, “Hydrocarbon habitat of Tertiary Niger Delta”. American Association of Petroleum Geologist Bulletin, vol. 62, no 1, pp. 1-39, 1978.

[31] A.O. Ola-Buraimo and I.M. Akaegbobi, Neogene dinoflagellate cyst assemblages of the Late Miocene-Pliocene Ogwashi-Asaba sediment in Umuna-1 Well, Anambra Basin, southeastern Nigeria. Journal of Petroleum and Gas Exploration Research (ISSN 2276-6510), vol. 2, (6), pp. 115-124, 2012, 2012.

[32] J. Muller, “Palynology of recent Orinoco Delta and shelf sediments”. Reports of the Orinoco Shelf expedition vol. 5, Micropalaentology 5(1), pp-32, 1959.

[33] J. Muller and C. Caratini, “Pollen of Rhizophora (Rhizophoraceae) as a guide fossil”, Pollen and Spores, 19(3) pp. 361-389, 1977.

[34] J.H. Wrenn and J.P. Kokinos, “Preliminary comments on the Miocene through Pleistocene dinoflagellate cysts from De Soto Canyon, Gulf of Mexico, American”, Association of Stratigraphy Palynologists Contribution Series, no. 17, pp. 169-225, 1986.

[35] C.A. Van Mourik and H. Brinkhuis, “Middle to Late Eocene organic-walled Dinoflagellate cysts from ODP Leg 171B, offshore Florida”. In: Kroon, D., Norris, R.D. and Klaus, A., (Ed.), Western North Atlantic Paleogene and Cretaceous Palaeocenography. Geological Society Special Publication, 101: 225-251, 2001.

[36] K.E. Peters and J.M. Moldowan, “The Biomarker Guide – Interpreting Molecular fossils in Petroleum and Ancient Sediments”. Prentice Hall (Englewood Cliffs), 363pp, 1993