Abstract
The purpose of this study is to identify areas with requisite sedimentary thickness and geothermal gradient capable of supporting the formation and accumulation of hydrocarbon fluids from organic rich source rocks. It also aims to delineate intra-sedimentary features that promote hydrocarbon migration and compartmentalization within reservoir rocks in Afikpo, Oban Massif and Niger Delta basins, southeastern Nigeria. Depths to the top and base of the magnetized crust were determined using statistical-spectral analysis of the aeromagnetic data contained in several square windows. The centroid method was applied and the results verified using forwarding modeling of the spectral peak. The results of spectral analysis show that the sedimentary thickness within the study area ranges from 1.35 to 3.84 km. Curie point depths (CPDs) obtained varies between 12.99 and 34.92 km. The maximum and minimum geothermal gradient values are 43.99° and 15.75°Ckm−1, respectively. These values show reasonable agreement with the results of earlier studies carried out in the region and nearby analogue basins. Some of the areas with shallow CPDs coincide with locations of thin sedimentary thickness, and deeper CPD regions correlate with areas of thick sedimentary cover. Good consistency was observed between the CPDs and geothermal gradient as areas of shallow CPDs tallied with zones of moderate and high temperature gradients. These results of geothermal gradients show remarkable agreement with wells data acquired within the Niger Delta Basin. The north–central, north–western and southeastern regions, which show sedimentary thickness of over 3 km in the presence of active intra-sedimentary structural elements as well as favorable temperature gradients, are recommended for further detailed petroleum system analysis.
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References
Abdelrahman EM, Essa KS (2015) A new method for depth and shape determinations from magnetic data. Pure Appl Geophys 172:439–460
Abdelrahman EM, El-Araby TM, Essa KS (2003) A least-squares minimization approach to depth, index parameter, and amplitude coefficient determination from magnetic anomalies due to thin dykes. Explor Geophys 34:241–248
Abdelrahman EM, Abo-Ezz ER, Essa KS, El-Araby TM, Soliman KS (2007) A new least-squares minimization approach to depth and shape determination from magnetic data. Geophys Prospect 55:433–446
Abdullahi M, Kumar R (2021) Basement and structure near the southwestern margin of the lower benue trough between, and including, the Anambra Basin and Afikpo Syncline, as derived from aeromagnetic and gravity data. Pure Appl Geophys 178:3953–3970
Abdullahi M, Kumar R, Sing UK (2019) Magnetic basement depth from high resolution aeromagnetic data of parts of lower and middle Benue Trough (Nigeria) using scaling spectral method. J Afri Earth Sci 150:337–345
Abraham EM, Lawal KM, Ekwe AC, Alile O, Murana K, Lawal AA (2014) Spectral analysis of aeromagnetic data for geothermal energy investigation of Ikogosi warm spring – Ekiti State, southwestern Nigeria. Geothermal Energy 2:1–21
Abraham E, Itumoh O, Chukwu C, Rock O (2019) Geothermal energy reconnaissance of southeastern Nigeria from analysis of aeromagnetic and gravity data. Pure Appl Geophys 176:1615–1638
Adetona AA, Salako KA, Rafiu AA (2017) Curie point depth and geothermal gradient from spectral analysis of aeromagnetic data over upper Anambra and Lower Benue Trough, Nigeria. NJTR 12:1–13
Afshar A, Norouzi GH, Moradzadeh A, Riahi A, Porkhial S (2017) Curie point depth, geothermal gradient and heat flow estimation and geothermal anomaly exploration from integrated analysis of aeromagnetic and gravity data on the Sabalan area. NW Iran Pure Appl Geophys 174:1133–1152
Airo ML, Wennerström M (2010) Application of regional aeromagnetic data in targeting detailed fracture zones. J Appl Geophys 71:62–70
Alasi TK, Ugwu GZ, Ugwu CM (2017) Estimation of sedimentary thickness using spectral analysis of aeromagnetic data over Abakaliki and Ugep areas of the Lower Benue Trough. Nigeria Int J Phys Sci 12:270–279
An Z, Di Q (2016) Investigation of geological structures with a view to HLRW disposal, as revealed through 3D inversion of aeromagnetic and gravity data and the results of CSAMT exploration. J Appl Geophys 135:204–211
Anakwuba EK, Onwuemesi AG, Chinwuko AI, Onuba LN (2011) The Interpretation of aeromagnetic anomalies over Maiduguri Dikwa depression, Chad Basin, Nigeria: a structural view. scholars research library. Arch Appl Sci Res 3:499–508
Anudu GK, Stephenson RA, McDonald DIM (2012a) Using high-resolution aeromagnetic data to recognize and map intra-sedimentary volcanic rocks and geological structures across the Cretaceous middle benue trough. Nigeria J Afri Earth Sci 99:625–636
Anudu GK, Obrike SE, Iyakwari S, Ikpokonte AE (2012b) Preliminary structural study of Landsat imagery over Wamba and environs, Nasarawa State north-central Nigeria. Res J Appl Sci 7:1–9
Anudu GK, Randell AS, David IM (2014) Using high resolution aeromagnetic data to recognize and map intra-sedimentary volcanic rocks and geological structures across the Cretaceous middle Benue Trough, Nigeria. J Afr Earth Sci 99:625–636
Arinze IJ, Emedo CO, Ngwaka AC (2019) Analysis of aeromagnetic anomalies and structural lineaments for mineral and hydrocarbon exploration in Ikom and its environs southeastern Nigeria. J Afri Earth Sci 159:284–285
Banerjee I (1981) Storm lag and related facies of bioclastic limestones of Eze-Aku Formation (Turonian), Nigeria. Sed Geol 26:133–147
Bansal AR, Gabriel G, Dimri VP, Krawczyk CM (2011) Estimation of depth to the bottom of magnetic sources bya modified centroid method for fractal distribution of sources: an application to aeromagnetic data in Germany. Geophysics 76:11–22
Bello R, Ofoha CC, Wehiuzo N (2017) Geothermal gradient, curie point depth and heat flow determination of some parts of lower benue trough and Anambra Basin, Nigeria using high resolution aeromagnetic data. Phys Sci Int J 15:1–11
Benkhelil J (1989) The origin and evolution of the cretaceous benue trough (Nigeria). J Afri Earth Sci 8:251–282
Bhattacharyya BK, Leu LK (1975) Spectral analysis of gravity and magnetic anomalies due to two-dimensional structures. Geophysics 40:993–1013
Biswas A, Rao K (2021) Interpretation of magnetic anomalies over 2D fault and sheet-type mineralized structures using very fast simulated annealing global optimization: an understanding of uncertainty and geological implications. Lithosphere 6:2964057
Chinwuko AI, Onwuemesi AG, Anakwuba EK, Nwokeabia NC (2012) Interpretation of aeromagnetic anomalies over parts of Upper Benue Trough and southern Chad Basin, Nigeria. Adv Appl Sci Res 3:1757–1766
Chukwu CG, Udensi EE, Abraham EM, Ekwe AC, Selemo AO (2018) Geothermal energy potential from analysis of aeromagnetic data of part of the Niger Delta Basin, southern Nigeria. Energy 143:846–853
Durogbo EU, Ogundipe OT (2019) Palynostratigraphy, palaeoenvironments and Kerogen assessment of mid-Cretaceous Ezea-Aku Shales succession from River Obey in Umudi-Lokpanta, Abia State, southeastern Nigeria. World News Nat Sci 25:84–112
Ehinola O (2010) Biostratigraphy and depositional environment of the oil shale deposit in the Abakaliki Fold Belt, southeastern Nigeria. Oil Shale 27:90–99
Ekpa MM, Ibuot JC, Okeke FN, Obiora DN (2020) Investigation of sub-surface structures within parts of Niger Delta, Nigeria, via aeromagnetic data. GBR 4:78–83
Ekwok SE, Akpan AE, Ebong ED (2019) Enhancement and modeling of aeromagnetic data of some inland basins, southeastern Nigeria. J Afri Earth Sci 155:43–53
Emujakporue GO, Nwosu LI (2017) Subsurface temperature prediction from multilayer solution of heat flow equation: acase study of Anambra Sedimentary Basin, Nigeria. IOSR-JAGG 5:60–67
Essa KS, Elhussein M (2017) A new approach for the interpretation of magnetic data by a 2-D dipping dike. J Appl Geophys 136:431–443
Essa KS, Elhussein M (2020) Interpretation of magnetic data through particle swarm optimization: mineral exploration cases studies. Nat Resour Res 29:521–537
Essa KS, Nady AG, Mostafa MS, Elhussein M (2018) Implementation of potential field data to depict the structural lineaments of the Sinai Peninsula. Egypt J Afri Earth Sci 147:43–53
Ewa K, Kryrowska S (2010) Geothermal exploration in Nigeria, Proceedings of World Geothermal Congress 2010, Zaria, Nigeria, 3:50–78.
Gluyas J, Swarbrick R (2005) Petroleum geoscience. Blackwell Science
Ijeh BI, Ohaegbuchu HE, Okpetue C (2018) Integration of aeromagnetic data and landsat imagery for structural analysis: a case study of Awgu in Enugu State, southeastern Nigeria. World News Nat Sci 18:79–105
Kasidi S, Nur A (2012) Curie depth isotherm deduced from spectral analysis of magnetic data over Sarti and environs of northeastern Nigeria. Sch J Biotech 1:49–56
Khojamli A, Ardejani FD, Moradzadeh A, Kalate AN, Kahoo AR, Porkhial S (2016) Estimation of curie point depths and heat flow from Ardebil province, Iran, using aeromagnetic data. Arab J Geosci 9:383–393
Mohamed HS, Senosy MM, Zaher MA (2016) Interactive interpretation of airborne gravity, magnetic, and drill-hole data within the crustal framework of the northern Western Desert. Egypt J Appl Geophys 134:291–302
Mohammadzadeh M, Moghaddam S, Mirzaei S, Nouraliee J, Porkhial S (2016) Integrated magnetic and gravity surveys for geothermal exploration in Central Iran. Arab J Geosci 9:506
Nwachukwu SO (1976) Approximate geothermal gradients inNiger Delta Sedimentary Basin. AAPG Bull 60:1073–1077
Obaje NG (2009) Geology and mineral resources of Nigeria. Springer
Obi GC, Okogbue CO (2004) Sedimentary response to tectonism in the Campanian-Maastrichtian succession, Anambra Basin, southeastern Nigeria. J Afri Earth Sci 38:99–108
Oden MI, Okpamu TA, Amah EA (2012) Comparative analysis of fracture lineaments in Oban and Obudu areas, SE Nigeria. JGG 4:36–47
Odigi M (2012) Sedimentology of the Nkporo Campanian-Maastrichtian conglomeratic formation, Afikpo sub-Basin, southeastern Benue Trough. Nigeria J Min Geol 48:45–55
Odigi MI, Amajor LC (2009) Brittle deformation in the Afikpo Basin (southeast Nigeria): evidence for a terminal Cretaceous extensional regime in the lower Benue Trough. Nigeria Chin J Geochem 28:369–373
Odumodu CF (2009) Subsurface temperatures, geothermal gradients and hydrocarbon studies in the Calabar Flank. Global J Geol Sci 7:55–65
Odumodu CF (2012) Temperatures and geothermal gradient fields in the Calabar Flank and parts of the Niger Delta. Nigeria PTD Journ 2:1–15
Odumodu CFR, Mode AW (2014) The faunal assemblage of the Nkporo shale at Asaga-Ohafia in southeastern Nigeria: implications for age and depositional environments. J Min Geol 50:167–182
Ofoegbu CO, Onuoha KM (1991) Analysis of magnetic data over the Abakaliki Anticlinorium of the lower Benue Trough. Nigeria Mar Pet Geol 8:174–183
Oha IA, Onuoha KM, Nwegbu AN, Abba AU (2016) Interpretation of high resolution aeromagnetic data over southern Benue Trough, southeastern Nigeria. J Earth Syst Sci 125:369–385
Oha IA, Onuoha KM, Dada SS (2017) Contrasting styles of lead-zinc-barium mineralization in the Lower Benue Trough, Southeastern Nigeria. ESRJ21:7–16.
Ojoh KA (1992) The southern part of the Benue Trough (Nigeria) Cretaceous stratigraphy, basin analysis, paleooceanography and geodynamic evolution in the equatorial domain of the south Atlantic. NAPE Bull 7:131–152
Okoro A, Igwe E (2018) Sequence stratigraphy and controls on sedimentation of the Upper Cretaceous in the Afikpo Sub-basin, southeastern Nigeria. Arab J Geosci 11:1–22
Okubo Y, Graf RJ, Hansen RO, Ogawa K, Tsu H (1985) Curie point depths of the Island of Kyushu and surrounding areas, Japan. Geophysics 53:481–494
Onuba LN, Onwuemesi AG, Egboka BC, Anudu GK, Omali A (2013) A review of hydrocarbon prospects in the lower Benue Trough, Nigeria: Another insight from potential field study. Extended Abstract, AAPG Annual Convention and Exhibition, Pittsburgh, U.S.A.
Onuoha KM, Ekine AS (1999) Subsurface temperature variation and heat flow in the Anambra Basin. Nigeria J Afri Earth Sci 28:641–652
Onwuemesi AG (1997) One dimensional spectral analysis of aeromagnetic anomalies and curie depth isotherm in the Anambra Basin of Nigeria. J Geodyn 23:95–107
Osinowo OO, Taiwo TO (2020) Analysis of high-resolution aeromagnetic (HRAM) data of lower Benue Trough, southeastern Nigeria, for hydrocarbon potential evaluation. NRIAG J Astron Geophys 9:350–361
Pochat S, Castelltort S, Choblet G, Van Den Driessche J (2009) High resolution record of tectonic and sedimentary processes in growth strata. Mar Pet Geol 26:1350–1364
Prutkin I, Vajda P, Jahra T, Bleibinhaus F, Novak P, Tenzer R (2017) Interpretation of gravity and magnetic data with geological constraints for 3D structure of the Thuringian Basin. Germany J Appl Geophys 136:35–41
Ravat D (2004) Constructing full spectrum potential-field anomalies for enhanced geodynamical analysis through integration of surveys from different platforms. EOS. Trans Am Geophys Un 85:47
Ravat D, Pignatelli A, Nicolosi I, Chiappini M (2007) A study of spectral methods of estimating the depth to the bottom of magnetic sources from near-surface magnetic anomaly data. Geophys J Int 169:421–434
Reijers TJA, Petters SW, Nwajide CS (1997) The Niger Delta basin. In: Selley RC (ed) Sedimentary basins of the world. Elsevier, pp 151–172
Salem A, Ushijima K, Elsiraft A, Mizunaga H (2000) Spectral, analysis of aeromagnetic data for geothermal reconnaissance of Quseir area, northern Red Sea. Egypt. In: Proceedings of the world geothermal congress, vol 3. pp 1669–1674
Shuey RT, Schellinger DK, Tripp AC, Alley LB (1977) Curie depth determination from aeromagnetic spectra. Geophys J Int 50:75–101
Spector A, Grant FS (1970) Statistical models for interpreting aeromagnetic data. Geophysics 35:293–302
Ugbor CC, Emedo CO, Arinze IJ (2020) Interpretation of airborne magnetic and geo-electric data: resource potential and basement morphology of the Ikom-Mamfe Embayment, Southeastern. Nigeria Nat Resour Res 30:153–174
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The authors would like to acknowledge the Nigerian Geological Survey Agency for providing airborne magnetic data used in this study. We highly appreciate the reviewers' insightful and helpful comments that improved the quality of the manuscript.
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CCA and LIM conceptualized the project. CCA played major roles in data curation, formal analysis, data interpretation and manuscript drafting. IJA and COE provided immense technical assistance and made inputs during manuscript drafting. LIM supervised and edited the final version of this work.
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Ani, C.C., Mamah, L.I., Arinze, I.J. et al. Reconnaissance Hydrocarbon Prospecting of Afikpo, Oban Massif and Up-Dip Niger Delta, Nigeria. Iran J Sci Technol Trans Sci 46, 1599–1612 (2022). https://doi.org/10.1007/s40995-022-01368-5
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DOI: https://doi.org/10.1007/s40995-022-01368-5