Structural and lithological interpretation of aero-geophysical data in parts of the Lower Benue Trough and Obudu Plateau, southeast Nigeria

Abdelrahman, 2006, Separation of anomalous aerial radiospectrometric zones using least-squares method on a sample area in Egypt, Arabian J. Sci. Eng., 32, 19 Airo, 2003, Characterization of sulfide deposits by airborne magnetic and gamma-ray responses in eastern Finland, Ore Geol. Rev., 24, 67, 10.1016/j.oregeorev.2003.08.008 Airo, 2002, Aeromagnetic and aeroradiometric response to hydrothermal alteration, Surv. Geophys., 23, 273, 10.1023/A:1015556614694 Airo, 2004, Characterization of sulfide deposits by airborne magnetic and gamma-ray responses in eastern Finland, Ore Geol. Rev., 24, 67, 10.1016/j.oregeorev.2003.08.008 Akande, 1989, Mineralogical, textural and paragenetic studies of the Lead- Zinc-Copper mineralization in the lower Benue Trough (Nigeria) and their genetic implications, J. Afr. Earth Sc., 9, 23, 10.1016/0899-5362(89)90004-3 Akın, 2011, Using the tilt angle in gravity and magnetic methods, Bull. Min. Res. Explor., 143, 1 Akpan, 2014, Geophysical and Geological Studies of the Spread and Industrial Quality of Okurike Barite Deposit, Am. J. Environ. Sci., 10, 566, 10.3844/ajessp.2014.566.574 Arinze, 2019, Analysis of aeromagnetic anomalies and structural lineaments for mineral and hydrocarbon exploration in Ikom and its environs southeastern Nigeria, J. Afr. Earth Sci., 151, 274, 10.1016/j.jafrearsci.2018.12.011 Beckett, K.A., 2003. Airborne geophysics applied to groundwater modelling. In: Roach, I.C. (ed.), Advances in Regolith, pp. 8–10. Benkhelil, 1987, Cretaceous deformation, magmatism and metamorphism in the lower Benue Trough, Nigeria. Geo. J., 22, 467 Bierlein, 1996, Origin of hydrothermal Cu-Zn-Pb mineralisation in the Olary Block, South Australia: evidence from fluid inclusions and sulphur isotopes, Precambr. Res., 79, 281, 10.1016/0301-9268(95)00098-4 Blakely, 1995 Boadi, 2013, Geological and structural interpretation of the Konongo area of the Ashanti gold belt of Ghana from aeromagnetic and radiometric data, Int. Res. J. Geol. Min. (IRJGM), 3, 124 Burke, 1971, Opening of the gulf of Guinea and geological history of the Benue Depression and Niger delta, Nature, 233, 51 Burke, 1974, Two plates in Africa during the Cretaceous?, Nature, 249, 313, 10.1038/249313a0 Cordell, 1985, Mapping basement magnetization zones from aeromagnetic data in the San Juan basin, New Mexico, 181 Davis, 1973, Distribution of radioelements potassium, uranium and thorium in selected porphyry copper deposits, Econ. Geol., 68, 145, 10.2113/gsecongeo.68.2.145 Dill, 2010, The origin of pre- and synrift, hypogene Fe-P mineralization during the Cenozoic along the Dead Sea Transform Fault, Northwest Jordan, Econ. Geol., 105, 1301, 10.2113/econgeo.105.7.1301 Dill, 2013, Sulfidic and non-sulfidic indium mineralization of the epithermal Au–Cu–Zn–Pb–Ag deposit San Roque (Provincia Rio Negro, SE Argentina)-with special reference to the “indium window” in zinc sulfide, Ore Geol. Rev., 51, 103, 10.1016/j.oregeorev.2012.12.005 Doucet, 1985, Rapport de mission 1984–1985. Bassins d'Anambra (partie nord) et d'Afikpo, Trav. Lab. Sei. Terre, Marseille St-Jerome, 86, 46 Egesi, 2019, Structural Characteristics of Parts of the Abakaliki Area South-Eastern Nigeria, Pacific J. Sci. Technol., 20, 382 Ekwok, 2019, Enhancement and modelling of aeromagnetic data of some inland basins, southeastern Nigeria, J. Afr. Earth Sc., 155, 43, 10.1016/j.jafrearsci.2019.02.030 Ekwok, 2020, Exploratory mapping of structures controlling mineralization in Southeast Nigeria using high resolution airborne magnetic data, J. Afr. Earth Sci., 162, 1, 10.1016/j.jafrearsci.2019.103700 Ekwok, 2020, Assessment of groundwater potential using geophysical data: a case study in parts of Cross River State, south-eastern Nigeria, Appl. Water Sci., 10, 1, 10.1007/s13201-020-01224-0 Ekwok, 2021, Assessment of depth to magnetic sources using high resolution aeromagnetic data of some parts of the Lower Benue Trough and adjoining areas, Southeast Nigeria, Adv. Space Res., 67, 2104, 10.1016/j.asr.2021.01.007 Ekwok, 2021, Assessment of crustal structures by gravity and magnetic methods in the Calabar Flank and adjoining areas of Southeastern Nigeria-a case study, Arabian J. Geosci., 14, 1, 10.1007/s12517-021-06696-1 Eldosouky, 2017, Integration of remote sensing and aeromagnetic data for mapping structural features and hydrothermal alteration zones in Wadi Allaqi area, South Eastern Desert of Egypt, J. Afr. Earth Sci., 130, 28, 10.1016/j.jafrearsci.2017.03.006 Eldosouky, 2018, Texture analysis of aeromagnetic data for enhancing geologic features using co-occurrence matrices in Elallaqi area, South Eastern Desert of Egypt, NRIAG J. Astron. Geophys., 7, 155, 10.1016/j.nrjag.2017.12.006 Ene, 2012, Structural styles and economic potentials of some barite deposits in the Southern Benue Trough, Nigeria, Romanian J. Earth Sci., 86, 27 Eseme, E., 2001. Geochemistry of salt springs in the Southwestern Mamfe Basin and its significance to Applied Sedimentology. M.Sc. Dissertation, Buea University, Buea, Cameroon, 111p. Eseme, 2002, Geochemistry and genesis of brine emanations from Cretaceous strata of the Mamfe Basin, Cameroon, J. Afr. Earth Sci., 35, 467, 10.1016/S0899-5362(02)00171-9 Essa, 2017, A new approach for the interpretation of magnetic data by a 2-D dipping dike, J. Appl. Geophys., 136, 431, 10.1016/j.jappgeo.2016.11.022 Essa, 2018, PSO (particle swarm optimization) for interpretation of magnetic anomalies caused by simple geometrical structures, Pure Appl. Geophys., 175, 3539, 10.1007/s00024-018-1867-0 Fatoye, 2013, Geology and mineral resources of the Lower Benue Trough, Nigeria, Adv. Appl. Sci. Res., 4, 21 Gandhi, 1996, Geological and geophysical signatures of a large polymetallic exploration target at Lou Lake, southern great Bear magmatic zone, Northwest Territories; in Current Research 1996-E, Geol. Survey Canada, 147 Geological Survey of Canada, 1992. Airborne geophysical survey, Mount Milligan area, British Columbia (NTS 93 O/4W, N/1, N/2E); GSC Open File 2535. Geological Survey of Canada, 1994. Airborne geophysical survey, Selwyn River, Yukon Territory, (NTS 115I/12W, J/9, J/10, and parts of J/11, 12, 13); GSC Open File 2816. Gunn, P., Minty, B., Milligan, P., 1997. The airborne gamma-ray spectrometric response over arid Australian Terranes. In: Gubins, A. (Ed.), Proceedings of Exploration 97: Fourth Decennial International Conference on Mineral Exploration, 733-740, Australia. Gunn, 1975, Linear transformations of gravity and magnetic fields, Geophys. Prospect., 23, 300, 10.1111/j.1365-2478.1975.tb01530.x Hassanein, 2009, Aeromagnetic Data Interpretation of Wadi Hawashiya Area for Identifying Surface and Subsurface Structures, North Eastern Desert, Egypt, JKAU: Earth Sci., 20, 117 Hoover, 1990, Annotated Bibliography of Gamma-Ray methods applied to gold exploration, U.S.G.S. Open-file Rep., 90–203, 23p Lee, M.K., Peart R.J., Cuss, R.J., Jones, D.G., Beamish, D., Vironmaki, J., 2001. Application and challenges for high resolution airborne surveys in populated areas. In: EAGE extended abstract, Amsterdam. Miller, 1994, Potential Field tilt - A new concept for location of potential field sources, Appl. Geophys., 32, 213, 10.1016/0926-9851(94)90022-1 Milligan, 1997, Enhancement and presentation of airborne geophysical data, AGSO J. Aust. Geol. Geophys, 17, 63 Mineral resources of the western US, 2017. The teacher-friendly guide to the Earth scientist of the Western US. http://geology.Teacherfriendlyguide.Org/index.php/mineral-w. Moxham, 1965, Gamma ray spectrometer studies of hydrothermally altered rocks, Econ. Geol., 60, 653, 10.2113/gsecongeo.60.4.653 Murat, 1970, Stratigraphy and palaeogeography of the Cretaceous and Lower Tertiary in southern Nigeria, 251 Nabighian, 1972, The analytical signal of two dimensional magnetic bodies with polygon cross-section: Its properties and use for automated anomaly interpretation, Geophysics, 37, 507, 10.1190/1.1440276 Nabighian, 1984, Towards the three-dimensional automatic interpretation of potential field data via generalized Hilbert transforms. Fundamental relations, Geophysics, 53, 957 Nguimbous-Kouoh, 2012, Structural interpretation of the Mamfe sedimentary basin of Southwestern Cameroon along the Manyu River using audiomagnetotellurics survey, Geophysics, 4, 34 Nweke, 2015, Comparative evaluation of clays from Abakaliki Formation with commercial bentonite clays for use as drilling mud, Afr. J. Environ. Sci. Technol., 9, 508, 10.5897/AJEST2015.1904 Obiora, 2006, Petrology and geotectonic setting of the basement complex rocks around Ogoja, South-eastern Nigeria, Ghana J. Sci., 46, 13 Offler, 1992, Wall-rock alteration and metamorphism of a volcanic-hosted massive sulphide deposit at Que River, Tasmania—petrology and mineralogy, Econ. Geol., 87, 686, 10.2113/gsecongeo.87.3.686 Oha, 2016, Interpretation of high resolution aeromagnetic data over southern Benue Trough, southeastern Nigeria, J. Earth Syst. Sci., 125, 369, 10.1007/s12040-016-0666-1 Oha, I.A., Onuoha, K.M. 2013. Contrasting Styles of Pb-Zn-Ba Mineralization in the Lower Benue Trough, Southern Nigeria. A paper presented at the 49th Annual International Conference and Exhibitions organized by Nigerian Mining and Geosciences Society (NMGS), Ibadan-Nigeria. Olade, 1985, Origin of lead-zinc mineralization in the southern Benue Trough, Nigeria - Fluid inclusion and trace element studies, Miner. Deposita, 20, 76, 10.1007/BF00204313 Osae, 2006, Provenance and tectonic setting of Late Proterozoic Buem sandstones of southeastern Ghana: Evidence from geochemistry and detrital modes, J. Afr. Earth Sci., 44, 85, 10.1016/j.jafrearsci.2005.11.009 Pal, 2015, Geological appraisal over the Singhbhum-Orissa Craton, India using GOCE, EIGEN6-C2 and in situ gravity data, Int. J. Appl. Earth Obs. Geoinf., 11, 155 Paoletti, 2004, Aeromagnetic and radiometric data filtering at the Vesuvian Volcanic Area, Bollettino di Geofisica Teorica ed Applicata, 46, 245 Ramadass, 2015, Structural Analysis of Airborne Radiometric data for Identification of Kimberlites in Parts of Eastern Dharwar Craton, Int. J. Sci. Res. (IJSR), 4, 2375 Ranjbar, 2001, Integration and analysis of airborne geophysical data of the Darrehzar area, Kerman Province, Iran, using principal component analysis, J. Appl. Geophys., 48, 33, 10.1016/S0926-9851(01)00059-3 Ranjbar, 2004, Integration and analysis of airborne geophysical and ETMþ data for exploration of porphyry type deposits in the Central Iranian Volcanic Belt using fuzzy classification, Int. J. Remote Sens., 25, 4729, 10.1080/01431160410001709011 Ranjbar, 2004, Application of the Crosta technique for porphyry copper alteration mapping, using ETMþ data in the southern part of the Iranian Volcanic Sedimentary Belt, J. Asian Earth Sci., 24, 237, 10.1016/j.jseaes.2003.11.001 Ranjbar, 2011, Evaluation of geophysics and space borne multispectral data for alteration mapping in the Sar Cheshmeh mining area, Iran, Int. J. Remote Sens., 32, 3309, 10.1080/01431161003745665 Reeves, C., Reford, S., Millingan, P., 1997. Airborne geophysics: old methods, new images. In: Gubins, A. (Ed.), Proceedings of the Fourth Decennial International Conference on Mineral Exploration, 13–30 (Australia). Roest, 1992, Magnetic interpretation using the 3-D analytic signal, Geophysics, 57, 116, 10.1190/1.1443174 Salem, 2007, Tilt-depth method: a simple depth estimation method using first-order magnetic derivatives, Lead. Edge, 26, 1502, 10.1190/1.2821934 Schroeter, 1995, 888 Shives, R.B.K., Charbonneau, B.W., Ford, K.L., 1997. The detection of potassic alteration by gamma-ray spectrometry—recognition of alteration related to mineralization. In: Proceedings of Exploration 97: Fourth Decennial International Conference on Mineral Exploration, pp. 741–752. Shives, 2000, The detection of potassic alteration by gamma-ray spectrometry—Recognition of alteration related to mineralization, Geophysics, 65, 2001, 10.1190/1.1444884 Shives, 1995, Applications of gamma ray spectrometric/magnetic/VLF-EM surveys—Workshop Manual; Geological Survey of Canada, Open File, 3061, 82 Telford, 1990 Tijani, 1996, Origin of saline groundwaters in the Ogoja area, Lower Benue Trough, Nigeria, J. Afr. Earth Sci., 23, 237, 10.1016/S0899-5362(96)00065-6 Ugbor, 2010, Geophysical investigation in the Lower Benue Trough of Nigeria using gravity method, Int. J. Phys. Sci., 5, 1757 Ukwang, 2003, Petrology of granulite facies rocks in Ukwortung area of Obudu Plateau, Southeastern Nigeria, Global J. Geol. Sci., 1, 159 Wemegah, 2015, Geophysical Interpretation of possible gold mineralization zones in Kyerano, South- Western Ghana using aeromagnetic and radiometric datasets, J. Geosci. Environ. Protect., 3, 67, 10.4236/gep.2015.34008 Wilford, 1997, Application of airborne gamma-ray spectrometry in soil or regolith mapping and applied geomorphology, J. Aust. Geol. Geophys., 17, 201