Earth, Energy & Environment

Earth, Energy & Environment


Pages: 21  ,  Volume: 5  ,  Issue: 2 , May   2018
Received: 01 Jun 2018  ,  Published: 03 June 2018
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# Author Name
1 Uzoegbu, M.U., Ikwuagwu, C.S., Agbo, C.C. and Amoke, A.I.



The thermal maturity parameter used in the evaluation of the hydrocarbon generative potential of the sedimentary organic matter is based largely on the extent of molecular transformation of the biological markers due to geothermal stress which is a function of depth or burial history. In particular the transformations leading to the formation of Polynuclear Aromatics usually occur at the end of diagenesis up to the onset of catagenesis. An in-depth study of the transformation leading to the formation of polynuclear aromatic steroidal hydrocarbons revealed a step by step thermally mediated aromatization of the non-aromatic biogenic species during diagenetic/catagenetic evolution of organic matter in an anoxic environment. The results of the study based on the most dominant polynucear aromatic species namely, methylphenanthrenes and phenanthrene revealed that coal samples from various locations in the Basin had an average PAH of 0.41mg/Kg (methylphenanthrenes) and 0.91mg/Kg (phenanthrene). High (Pr/Ph) ratio (1.73-12.47) and distributions of polyaromatic hydrocarbons showed that Mamu samples consisted of terrestrial organic matter with marine incursion deposited under oxic/suboxic-oxic in lacustrine-fluvial/deltaic environment. Based on the foregoing, PAH values can be used to evaluate the maturation level of organic matter in the coals.




Achari, R. G., Shaw, G. and Holleyhead, R. 1973. Identification of ionene and other carotenoid degradation products from the pyrolysis of sporopollenins derived from some pollen exines, a spore coal and the green river shale. Chemical Geology 12: 229–234.


Adedosu, T. A. (2009). Aspects of Organic Geochemistry of Nigerian Coal as a Potential Source-Rock of Petroleum. Ph.d Thesis, University of Ibadan, pp. 144-167.


Adeleye, D.R. and Fayose, E.A. (1978), Stratigraphy of the type section of Awe Formation, Odukpani area, southeastern Nigeria. Nig. Jour. Min. Geol., 15, 33-37.


Akande, S. O. and Erdtmann, B. D. (1998), Burial metamorphism (thermal maturation) in Cretaceous sediments of the southern Benue trough and Anambra Basin, Nigeria. Amer. Assoc. Petrol. Geol. Bull., 82 (6), 1191-1206.


Akande, S. O., Erdtmann, B. D. and Hetenyi, M. (1998), Paleoenvironments, source rock potential and thermal maturity of the Upper Benue rift basins, Nigeria: Implications for hydrocarbon exploration. Org. Geochem., 29, 531-542.


Alexander, R., Bastow, T. P., Kagi, R. I. and Singh, R. K. 1992. Identification of 1,2,2,5-Tetramethyltetralin and 1,2,2,3,4-Pentamethyltetralin as Racemates in Petroleum. Journal of the Chemical Society, Chemical Communications 1906:1712–1714.


Alexander, R., Bastow, T. P., Fisher, S. J. and Kagi, R. I. 1995. Geosynthesis of Organic compounds: II. Methylation of phenanthrene and alkylphenanthrenes. Geochimica et Cosmochimica Acta 59:4259–4266.


Bastow, T.P., Alexander, R., Sosrowidjojo, I.B. and Kagi, R.I. 1998.Pentamethylnaphthalenes and related compounds in sedimentary organic matter. Organic Geochemistry 28.9-10:585-595.


Bastow, T.P., Alexander, R., Fisher, S.J., Singh, R.K., van Aarssen, B.G.K. and Kagi, R.I. 2000.Geosynthesis of organic compounds. Part V-methylation of alkylnaphthalenes. Organic Geochemistry 31:523-534.


Bechtel, A., Gruber, W., Sachsenhofer, R.F., Gratzer, R. and Püttmann, W. 2001.Organic geochemical and stable carbon isotopic investigations of coals formed in low-lying and raised mires within the Eastern Alps (Austria). Organic geochemistry 32:1289-1310.


Benkhelil, J. (1989), The evolution of the Cretaceous Benue Trough, Nigeria. Jour. Afri. Earth Sci., 8, 251-282.


Betrand, P., Behar, F. and Durand, B. 1986.Composition of potential oil from humic coals in relation to their petrographic nature. Organic Geochemistry 10:601-608.


Boreham, C.J. and Powell, T.G. 1991. Variation in pyrolysate composition of sediments from the Jurassic Walloon coal measures, eastern Australia as a function of thermal maturation. Organic Geochemistry 17:723-733.


Brooks, J.D. and Smith, J.W. 1967.The diagenesis of plant lipids during the formation of coal, petroleum and natural gas-I. Changes in the n-paraffin hydrocarbon. Geochimica et Cosmochimica Acta 31:2389-2397.


Brooks, J.D. and Smith, J.W. 1969.The diagenesis of plant lipids during the formation of coal, petroleum and natural gas-II. Coalification and the formation of oil and gas in the Gippsland Basin. Geochimica et Cosmochimica Acta 33:1183-1194.


Budzinski, H., Garrigues, P.H., Connan, J., Devillers, J., Domine, D., Radke, M. and Oudin, J.L. 1995.Alkylated phenanthrene distributions as maturity and origin indicators in crude oils and rock extracts. Geochimica et Cosmochimica Acta 59.10:2043-2056.


Carter, J.D., Barber, W. and Jones, G.P. 1963.The Geology of Parts of Adamawa, Bauchi and Bornu provinces in Northeastern Nigeria.Bulletin of the Geological Survey of Nigeria 30:109.


Chakhmakhchev, A., Suzuki, M. and Takayama, K. 1997.Distribution of alkylated dibenzothiophenes in petroleum as tool for maturity assessments. Organic Geochemistry 26:483-490.


Day, W. C. and Erdman, J. G. 1963. Ionene: a thermal degradation product of carotene. Science 141:808.


De Graaf, W., Sinninghe Damsté, J.S. and de Leeuw, J.W. 1992.Laboratory simulation of natural sulphurisation I.Formation of monomeric and oligomeric isoprenoid polysulphides with low temperature reactions of inorganic polysulphides with phytol and phytadienes. Geochimica et Cosmochimica Acta 56:4321-4328.


Dike, E.F.C. (1976a), Hydrocarbon prospects of Nigerian Basins, Vol. 1: Niger Delta Basin, 142pp. Consultancy Report for The Superior Oil Company, Houston Texas, U.S.A.


Dike, E.F.C. (1976b), Hydrocarbon prospects of Nigerian Basins, Vol. 2: Interior Basins- Anambra, Benue, Gongola and Bornu (Chad) Basins, 143-233. Consultancy Report for The Superior Oil Company, Houston Texas, U.S.A.


Dike, E.F.C. (1993), Stratigraphy and structure of the Kerri-Kerri Basin, north-eastern Nigeria. Jour. Min. Geol., 29 (2), 77-93.


Dike, E.F.C. (2002), Sedimentation and tectonic evolution of the Upper Benue Trough and Bornu Basin, NE Nigeria. Nig. Min. Geosci. Soc. Annual Intern. Conf., Port Harcourt, Nigeria, 2002 (NMGS/ELF Award Winning Paper), Abs. Vol.


Dike, E.F.C. and Onumara, I.S. (1999), Facies and facies architecture and depositional environments of the Gombe Formation, Gombe and Environs, NE Nigeria. Sci. Assoc. Nigeria Annual Conf., Bauchi, Nigeria, 1999. Abs. Vol.


Dzou, L. I. P., Noble, R. A. and Senflte, J. T. 1995. Maturation effects on absolute biomarker concentrations in a suite of coals and associated vitrinite concentrates. Organic Geochemistry 23:681–697.


Ellis, V.O., De Baroos, A.M.A., De Baroos, A.B., Simoneit, B.R.T. and Cardoso, J.N. 1997.Sesquiterpenoids in sediments of hypersaline lagoon: A possible algal origin. Organic Geochemistry 26.11-12:721-730.


Enu, I. E. (1987), The palaeoenvironment of deposition of Late Maastrichtian to Paleocene black shale in the eastern     Dahomey Basin, Nigeria.  Geol. Mijinbouw, 66, 15-20


Ficken, K.J., Li, B., Swain, D.L. and Eglinton, G. 2000.An n-alkane proxy for the sedimentary input of submerged/floating fresh water aquatic macrophytes. Organic Geochemistry 31.7-8:745-749.


Freeth, S.J. (1990), The origin of the Benue Trough.  In: The Benue Trough Structure and Evolution (Edited by Ofoegbu, C.O).  Vieweg and Sohn, Braunchweig, Germany. 217-227.


Grice, K., Schouten, S., Nissembaum, A., Charrach, J. and Sinninghe Damsté, J.S. 1998.A remarkable paradox: Sulfurised freshwater algal (Botryococcus braunii) lipids in an ancient hypersaline euxinic ecosystem. Organic Geochemistry 28:195-216.


Huang, H. and Pearson, M.J. 1999.Source rock paleoenvironments and controls on the distribution of dibenzothiophenes in lacustrine crude oil, Bohai basin, Eastern China.Organic Geochemistry 30:1455-1470.


Hughes, W.B., Holba, A.G. and Dzhou, L.I.P. 1995.The ratios of dibenzothiophene to phenanthrene and pristane to phytane as indicators of depositional environment and lithology of petroleum source rocks. Geochimica et Cosmochimica Acta 59:3581-3598.


Hunt, J.M. 1991.Generation of gas and oil from coal and other terrestrial organic matter. Organic Geochemistry 17:673-680.


Hunt, J.M. 1996.Petroleum Geochemistry and Geology.Second Edition. New York: W.H. Freeman and Company.


Hunt, J.M., Philp, R.P. and Kvenvolden, K.A. 2002.Early developments in petroleum geochemistry. Organic Geochemistry 33:1025-1052.


Hutton, A., Daulay, B., Herudiyanto Nas, C., Pujobroto, A. and Sutarwan, H. 1994.Liptinite in Indonesian Tertiary coals. Energy and Fuels 8:1469-1477.


Isasken, G.H., Curry, D.J., Yeakel, J.D. and Jensen, A.I. 1998.Controls on the oil and gas potential of humic coals. Organic geochemistry 29:23-44.


Jones, H. A. (1965), Ferruginous oolites and pisolites.  Jour. Sed. Petrol., 35,838-845.


Killops, S.D. and Killops, V.J. 1993.An introduction to organic geochemistry. UK: Longman Group Ltd. offshore New Zealand sediments. Organic Geochemistry 15:193-197.


Killops, S.D. and Killops, V.J. 2005.Introduction to organic geochemistry. Second edition.U.K: Blackwell Publishing Limited.


Killops, S.D., Funnel, R.H., Suggate, R.P., Sykes, R., Peters, K.E., Walters, C., Woolhouse, A.D., Weston, R.J. and Boudou, J.P. 1998.Predicting generation and expulsion of paraffinic oil from the vitrinite-rich coals. Organic Geochemistry 29:1-9.


Kolonic, S., Sinninghe Damsté, J.S., Böttcher, M.E., Kuypers, M.M., Beckmann, B., Scheeder, G. and Wagner, T. 2002.Geochemical characterization of Cenomanian/Turonian black shales from the Tarfaya basin (SW Morocco). Journal of Petroleum Geology 25.3:325-350.


Meyers, P.A. 2003. Application of Organic Geochemistry to paleolimnological reconstructions: a summary of examples from Laurentian Great Lakes.Organic Geochemistry 34.2:261-289.


Murat, R.C., (1972), Stratigraphy and paleogeography of the Cretaceous and lower Tertiary in southern Nigeria. In: African Geology (Ed. by Dessauvagie, T.F.J. and Whiteman, A.J.), 251-266. Ibadan University press, Ibadan, Nigeria.


Obaje N. G. and Hamza, H. (2000), Liquid hydrocarbon source rock.  Potential of mid-Cretaceous coals and coal measures in the Middle Benue Trough of Nigeria.  Intern. Jour. Earth Sci., 89, 130-139.


Obaje, N.G., Ulu, O.K. and Petters, S.W. (1999), Biostratigraphic and geochemical controls of hydrocarbon prospects in the Benue Trough and Anambra Basin, Nigeria. Nig. Assoc. Petrol. Expl. Bull., 14(1), 18-54.


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. Amer. Assoc. Petrol. Geol. Bull., 88(3), 325-353.


Obaje, N. G., Attah, D. O., Opeloye, S. A. and Moumouni, A. (2006), Geochemical evaluation of the hydrocarbon prospects of sedimentary basins in Northern Nigeria. Geochem. Jour., 40, 227 – 243.


Offodile, M. E. (1976), The geology of the Middle Benue, Nigeria. Spec. Vol. Palaeont. Inst. Uni. Uppsala, 4, 1-166.


Ojoh, K. A. (1990), Cretaceous geodynamic evolution of the southern part of the Benue Trough (Nigeria) in the equatorial domain of the South Atlantic: Stratigraphy, basin analysis and paleo-oceanography.  Bull. Cent. Rech. Expl. Prod., Elf-Aquitaine, 14, 419-442.


Olvella, M.A., Gorchs, R. and de las Heras, F.X.C. 2006.Origin and distribution of biomarkers in the sulphur rich Utrillas coal basin-Teruel minning district- Spain. Organic geochemistry 37:1727-1735.


Osazuwa, I. B., Ajakaiye, D. E. and Verheijen, P. J. T. (1981), Analysis of the structure of part of the Upper Benue rift valley on the basis of new geophysical data. Earth  Evol. Sci., 2, 126-135.


Pearsen, M. J. and Obaje, N. G. (2000), Onocerane and other triperpenoids in Late Cretaceous sediments from the Upper Benue Trough of Nigeria: tectonic and palaeoenvironmental.  Amer. Assoc. Petrol. Geol. Bull., 83, 1943-1964.


Petersen, H.I., Nytoft, H.P. 2006.Oil generation capacity of coals as a function of coal age and aliphatic structure. Organic Geochemistry 37:558-583.


Petters, S. W. (1978), Stratigraphic evolution of the Benue Trough and its implications for the Upper Cretaceous paleography of West Africa. Jour. Geol., 86, 311-322.


Petters, S. W. (1979), Maastrichtian arenaceous foraminifera from northwestern Nigeria. Paleontology, 22, 947-963.


Petters, S. W. (1980), Biostratigraphy of upper Cretaceous foraminifera of the Benue Trough, Nigeria.  Jour. Fora. Res., 10, 199-204.


Petters, S. W. (1982), Central West Africa Cretaceous-Tertiary benthic foraminfera and stratigraphy.   Paleont. (A) 179, 1-104.


Petters, S. W. (1991), Regional Geology of Africa. Springer- Verlage, Berlin, 722pp.


Petters, S.W. and Ekweozor, C. M. (1982), Petroleum geology of the Benue Trough and southeastern Chad Basin, Nigeria: Amer. Assoc. Petrol. Geol. Bull., 60(8), 1141-1149.


Püttmann, W. and Villar, H. 1987.Occurrence and geochemical significance of 1,2,5,6-tetramethylnaphthalene. Geochimica et Cosmochimica Acta 51:3023-3029.


Radke, M., Welte, D.H. and Wilsch, H. 1982.Geochemical study on a well in the Western Canada Basin: relation of the aromatic distribution pattern to maturity of organic matter. Geochimica et Cosmochimica Acta 46:1-10.


Radke, M. and Welte, D.H. 1983.The methylphenanthrene index (MPI): a maturity parameter based on aromatic hydrocarbons. In: Bjoroy M, editor. Advances in Organic Geochemistry 10:51-63.


Radke, M. 1987.Organic geochemistry of aromatic hydrocarbons. In: Brooks, J., Welte, D.H. (Eds.). Advances in Petroleum Geochemistry, Vol.2.London: Academic Press.141-207.


Radke, M., Welte, D.H. and Willsch, H. 1990.Methylated dicyclic and tricyclic aromatic hydrocarbons in crude oils from Handil Field (Indonesia). Organic Geochemistry 15:17-34.


Radke, M., Hilkert, A. and Rullkoter, J. 1994.Molecular stable carbon isotope compositions of alkylphenanthrenes in coals and marine shales related to source and maturity. Organic Geochemistry 28.12: 785-795.


Radke, M., Vriend, S. P. and Ramanampisoa, L. R. 1995. Alkyldibenzofurans in terrestrial rocks: Influence of organic facies and maturation. Geochimica et Cosmochimica Acta 64:275–286.


Radke, M., Horsefield, B., Littke, R. and Rullkotter, J. 1997.Maturation and Petroleum generation. In: Migration of hydrocarbons in sedimentary basins.B.Dohgez (Ed.). 649-665.


Requejo, A. G. 1994. Maturation of petroleum source rocks-II. Quantitative changes in extractable hydrocarbon content and composition associated with hydrocarbon generation. Organic Geochemistry 21:91–105.


Revill, A.T., Volkman, J.K., O’Leary, T., Summons, R.E., Boreham, C.J., Banks, M.R. and Denver, K. 1994.Hydrocarbon biomarkers, thermal maturity, and depositional setting of Tasmania, Australia.Geochimica et Cosmochimica Acta 58:3803-3822.


Reyment, R.A. (1965), Aspects of the geology of Nigeria. Ibadan. Univ. Press, Ibadan, Nigeria, 145pp.


Sachsenhofer, R.F., Kogler, A., Polesny, H., Strauss, P. and Wagreich, M. 2000a.The Neogene Fohnsdorf Basin: basin formation and basin inversion during lateral extrusion in the Eastern Alps.International Journal of Earth Sciences 89:415-430.


Schouten, S., Eglinton, T.E., Sinninghe Damsté, J.S. and de Leeuw, J.W. 1995a.Influence of sulphur-crosslinking on the molecular size distribution of sulphur-rich macromolecules in bitumen. In: Vairavamurthy M.A., Schoonen, M.A.A (Eds.), Geochemical Transformations of Sedimentary Sulphur.American Chemical Society symposium Series 612:80-92.


Simpson, A. (1954), The Nigeria coalfield. The geology of parts of Onitsha, Owerri and Benue provinces. Bull. Geol. Sur. Nigeria, 24, 1-85.


Sinninghe Damsté, J.S., Englinton, T.I., de Leeuw, J.W. and Schenck, P.A. 1989a.Organic sulphur in macromolecular sedimentary organic matter. PartI.Structure and origin of sulphur-containing moieties in kerogen, asphaltene and coal as revealed by flash pyrolysis. Geochimica et Cosmochimica Acta 53:873-889.


Smith, J.W., George, S.C. and Batts, B.D. 1994.Pyrolysis of aromatic compounds as a guide to synthetic reactions in sediments. American Petroleum Explorationists Association Journal 30:504-512.


Strachan, M.G., Alexander, R. and Kagi, R.I. 1988.Trimethylnaphthalenes in crude oils and sediments: Effects of source and maturity. Geochimica et Cosmochimica Acta 52:1255-1264.


Sykes, R., Snowdon, L.R. and Jahansen, P.E. 2004.Leaf biomass-a new paradigm for sourcing terrestrial oil of Taranaki basin. In: Boult, P.J., Johns, D.R., Lang, S.C., editors. Eastern Australia basin symposium II.Petroleum exploration society of Australia, Special Publication.553-574.


Uzoegbu, U.M., Ekeleme, I.A., Kus, J. and Uchebo, U.A. 2013. Petrology, rank and geochemical evaluation of Maastrichtian coals from SE Nigeria: implication for petroleum generation. International Organization of Scientific Research (IOSR): Journal of Applied Geology and Geophysics, Vol. 1(3), 23-41.


Van Aarssen, B.G.K., Bastow, T.P., Alexander, R. and Kagi, R.I. 1999.Distribution of methylated naphthalenes in crude oils: indicators of maturity, biodegradation and mixing. Organic Geochemistry 30:1213-1227.


Van Kaam-Peters, H.M.E., Rijipstra, W.I.C., de Leeuw, J.W. and Sinninghe Damsté, J.S. 1998.A high resolution biomarker study of different lithofacies of organic sulphur- rich carbonate rocks of a Kimmeridgian lagoon (French Southern Jura). Organic Geochemistry 28. (3-4): 151-177.


Wakeham, S.G., Schaffner, C. and Giger, W. 1980. Polycyclic aromatic hydrocarbons in recent lakesediments. II. Compounds derived from biogenic precursors during early diagenesis. Geochimica et Cosmochimica Acta, 44.13:415-429.


Whiteman, A. J. (1982), Nigeria: its Petroleum Geology, Resources and Potential. 1, 176pp; 2, 238pp. Graham and Trotman, London, UK.


Wright, J. B. (1981), Review of the origin and evolution of the Benue Trough in Nigeria. Earth Evol. Sci., 2, 98-103.


Yangming, Z., Huanxin, W., Aiguo, S., Digang, L. and Dehua, P. 2005.Geochemical characteristics of Tertiary saline lacustrine oils in the Western Qaidam Basin, northwest China.Applied Geochemistry 33:1225-1240.


Yessalina, S., Suzuki, N., Nishita, H. and Waseda, A. 2006.Higher plant biomarkers in Paleogene crude oils from the Yufutsu oil- and gas field and offshore wildcats, Japan.Journal of Petroleum Geology 29.4:327-336.


Younes, M.A. and Philp, R.P. 2005.Source rock characterization based on biological marker distributions of crude oils in the southern Gulf of Suez, Egypt.Journal of Petroleum Geology 28.3:301-317.


Zaborski, P. M. (1998), A review of the Cretaceous system in Nigeria. Afri. Geol. Rev., 5(4), 385-483.