IJG  Vol.8 No.6 , June 2017
Evidence of Structural Facts Inferred from Aeromagnetic Data Analysis over the Guider-Maroua Area (Northern Cameroon)
In this study, we performed some filters to highlight geological structures and/or features which are found in the igneous rocks, between the latitudes 9°45'N to 10°45'N and longitudes 13°15'E to 14°30'E. The application of the first vertical derivative (FVD) and the horizontal gradient magnitude (HGM) on a total magnetic data over the study area has led to put in evidence: 1) geological features as geological boundaries, faults, dykes, folds on the FVD map; 2) abundant aeromagnetic lineaments probably fractures, dykes and contacts, ex-hibit a conjugate relationship suggesting a near NE and NW tectonic trends; 3) existence of a possible prominent near E-W compression, characterized by a possible dextral displacement of geological formations by the shear movements; 4) and the magnetic signature of the country rocks.
Cite this paper
Ngoh, J. , Mbarga, T. , Assembe, S. , Meying, A. , Owono, O. and Tabod, T. (2017) Evidence of Structural Facts Inferred from Aeromagnetic Data Analysis over the Guider-Maroua Area (Northern Cameroon). International Journal of Geosciences, 8, 781-800. doi: 10.4236/ijg.2017.86044.
[1]   Foulger, G.R. and Pierce, C. (2007) Geophysical Methods in Geology. Teaching Handbook, University of Durham, UK, 78 p.

[2]   Xu, X.F., Deng, Y.Y. and He, Z.X. (2007) Application of Magnetic Directional Derivatives in Petroleum Geology Interpretation. EAGE 69th Conference & Exhibition, London, UK, 11-14 June 2007.

[3]   Songfa L. and Tim, M. (1998) Using Images in a Geological Interpretation of Magnetic Data. AGSO Research Newsletter 28.

[4]   Toteu, S.F., Van Schmus, R.W., Penaye, J. and Michard, A. (2001) New U-Pb and Sm-Nd Data from North-Central Cameroon and Its Bearing on the Pre-Pan-African History of Central Africa. Precambrian Research, 108, 45-73.

[5]   Tchameni, R., Pouclet, A., Penaye, J., Ganwa, A.A. and Toteu, S.F. (2006) Petrography and Geochemistry of the Ngaoundéré Pan-African Granitoids in Central Cameroon: Implications for Their Sources and Geological Setting. Journal of African Earth Sciences, 44, 511-529.

[6]   Paterson, Grant & Watson Ltd. (1976) études aéromagnétiques sur certaines régions de la République Unie du Cameroun. Rapport d’interprétation, Agence Canadienne de Développement International, Toronto, Canada, 192 p.

[7]   Manga, S.C., Loule, J.P. and Koum, J.J. (2001) Tectonostratigraphic Evolution and Prospectivity of Logone Birni Basin, North-Cameroon-Central Africa. AAPG Extended Abstracts, 124.

[8]   Njandjock, N.P., Manguelle-Dicoum, E., Ndougsa-Mbarga, T. and Tabod, C.T. (2006) Spectral Analysis and Gravity Modelling in Yagoua, Cameroon, Sedimentary Basin. Geofísica International, 45, 209-215.

[9]   Poudjom Djomani, Y.H., Nnange, J.M., Diament, M., Ebinger, C.J. and Fairhead, J.D. (1995) Effective Elastic Thickness and Crustal Thickness Variations in West Central Africa Inferred from Gravity Data. Journal of Geophysical Research: Solid Earth, 100, 22047–22070.

[10]   Nguimbous-Kouoh, J.J., Ndougsa-Mbarga, T., Njandjock-Nouck, P., Eyike, A., Campos-Enriquez, J.O. and Manguelle-Dicoum, E. (2010) The Structure of the Goulfey-Tourba Sedimentary Basin (Chad-Cameroon): A Gravity Study. Geofisica Internacional, 49, 181-193.

[11]   Loule, J.P. and Lumbomil, P. (2009) The Logone Birni Basin (LLB) in Northern Cameroon: Transition between the West African Rift Sub-System (WAS) and the Central African Rift Sub-System (CAS); Tectonic and Geophysical Models. Search and Discovery Article #50171.

[12]   Toteu, S.F., Penaye, J., Deloule, E., Van Schmus, W.R. and Tchameni, R. (2006) Diachronous Evolution of Volcano-Sedimentary Basins North of the Congo Craton: Insights from U-Pb Ion Microprobe Dating of Zircons from the Poli, Lom and Yaoundé Groups (Cameroon). Journal of African Earth Sciences, 44, 428-442.

[13]   Penaye, J., Kroner, A., Toteu, S.F., Van Schmus, W.R. and Doumnang, J.C. (2006) Evolution of the Mayo Kebbi Region as Revealed by Zircon Dating: An Early (ca. 740 Ma) Pan-African Magmatic Arc in Southwestern Chad. Journal of African Earth Sciences, 44, 530-542.

[14]   Toteu, S.F., Penaye, J. and Djomani, Y.P. (2004) Geodynamic Evolution of the Pan-African Belt in Central Africa with Special Reference to Cameroon. Canadian Journal of Earth Sciences, 41, 73-85.

[15]   Van Schmus, W.R., Oliveira, E.P., Da Silva Filho, A.F., Toteu, S.F., Penaye, J. and Guimaraes, I.P. (2008) Proterozoic Links between the Borborema Province, NE Brazil, and the Central African Fold Belt. In: Pankhurst, R.J., Trouw, R.A.J., de Brito Neves, B.B. and De Wit, M.J., Eds., West Gondwana. Pre-Cenozoic Correlations across the South Atlantic Region, Geological Society, London, Special Publication 294, 69-99.

[16]   Bouyo Houketchang, M., Toteu, S.F., Deloule, E., Penaye, J. and Van Schmus, W.R. (2009) U-Pb and Sm-Nd Dating of High-Pressure Granulites from Tcholliré and Banyo Regions: Evidence for a Pan-African Granulite Facies Metamorphism in North-Central Cameroon. Journal of African Earth Sciences, 54, 144-154.

[17]   Ngako, V., Affaton, P., Nnange, J.M. and Njanko, T. (2003) Pan-African Tectonic Evolution in Central and Southern Cameroon: Transpression and Transtension during Sinistral Shear Movements. Journal of African Earth Sciences, 36, 207-214.

[18]   Ngako, V., Affaton, P. and Njonfang, E. (2008) Pan-African Tectonics in Northwestern Cameroon Implication for the History of Western Gondwana. Gondwana Research, 14, 509-522.

[19]   Ngako, V. and Njonfang, E. (2011) Plates Amalgamation and Plate Destruction, the Western Gondwana History. In: Closson, D., Ed., Tectonics, InTech, UK, 3-34.

[20]   Dawai, D., Bouchez, J.-L., Paquette, J.-L. and Tchameni, R. (2013) The Pan-African Quartz-Syenite of Guider (North-Cameroon): Magnetic Fabric and U-Pb Dating of a Late-Orogenic Emplacement. Precambrian Research, 236, 132-144.

[21]   Ndougsa-Mbarga, T., Feumoé, A.N., Manguelle-Dicoum, E. and Fairhead, J.D. (2012) Aeromagnetic Data Interpretation to Locate Buried Faults in South-East Cameroon. Geophysica, 48, 49-63.

[22]   Feumoé, A.N., Ndougsa-Mbarga, T., Manguelle-Dicoum, E. and Fairhead, J.D. (2012) Delineation of Tectonic Lineaments Using Aeromagnetic Data for the South-East Cameroon area. Geofizika, 29, 33-50.

[23]   Cordell, L. and Grauch, V.J.S. (1982) Mapping Basement Magnetization Zones from Aeromagnetic Data in the San Juan Basin, New Mexico. SEG Technical Program Expanded Abstracts, 246-247.

[24]   Cordell, L. and Grauch, V.J.S. (1985) Mapping Basement Magnetization Zones from Aeromagnetic Data in the San Juan Basin, New Mexico. In: Hinze, W.J., Ed., The Utility of Regional Gravity and Magnetic Anomaly Maps, Society of Exploration Geophysicists, 181-197.

[25]   Blakely, R.J. and Simpson, R.W. (1986) Approximating Edges of Source Bodies from Magnetic or Gravity Anomalies. Geophysics, 51, 1494-1498.

[26]   Cooper, G.R.J. (1997) GravMap and PFproc: Software for Filtering Geophysical Map Data. Computers & Geosciences, 23, 91-101.

[27]   Gunn, P.J. (1975) Linear Transformation of Gravity and Magnetic Fields. Geophysical Prospecting, 23, 300-312.

[28]   Phillips, J.D. (2000) Locating Magnetic Contacts: A Comparison of the Horizontal Gradient, Analytic Signal, and Local Wavenumber Methods: Society of Exploration Geophysicists. Abstracts with Programs, Calgary, 2000.

[29]   Li, J. and Morozov, I. (2004) Continuous Equivalent Source Surface Approach for Accurate Interpolation and Continuation. 2004 CSEG, Calgary.

[30]   Pilkington, M. and Roest, W.R. (1992) Draping Aeromagnetic Data in Areas of Rugged Topography. Journal of Applied Geophysics, 29, 135-142.

[31]   Grauch, V.J.S. and Ruleman, C.A. (2013) Identifying Buried Segments of Active Faults in the Northern Rio Grande Rift Using Aeromagnetic, LiDAR, and Gravity Data, South-Central Colorado, USA. International Journal of Geophysics, 2013, Article: ID 804216.

[32]   Phillips, J.D., Hansen, R.O. and Blakely, R.J. (2007) The Use of Curvature in Potential-Field Interpretation. Exploration Geophysics, 38, 111-119.

[33]   Henry, L., Dinu, P., Reg, O. and Lorraine, G. (2003) Mapping of Basement Faults with Gravity and Magnetic Data in Northern Alberta. 12 p.

[34]   Raimi, J., Dewu, B.B.M. and Sule, P. (2014) Existence of a Possible Subsurface Ring Complex in the Northwestern Part of the Nigerian Younger Granite Province: A Contribution from Aeromagnetic and Remote Sensing Data.

[35]   Goodluck, K.A., Randell, A.S. and David, I.M.M. (2014) Using High-Resolution Aeromagnetic Data to Recognise and Map Intra-Sedimentary Volcanic Rocks and Geological Structures across the Cretaceous Middle Benue Trough, Nigeria. Journal of African Earth Sciences, 99, 625-636.

[36]   Vignes-Adler, M., Le Page, A. and Adler, P.M. (1991) Fractal Analysis of Fracturing in Two African Regions, from Satellite Imagery to Ground Scale. Tectonophysics, 196, 69-86.

[37]   Fairhead, J.D. and Okereke, C.S. (1987) A Regional Study of the West African Rift System in Nigeria and Cameroon and Its Tectonic Interpretation. Tectonophysics, 143, 141-159.

[38]   Eyike, A., Werner, S.C., Ebbing, J. and Dicoum, E.M. (2010) On the Use of Global Potential Field Models for Regional Interpretation of the West and Central African Rift system. Tectonophysics, 492, 25-39.

[39]   Rolin P. (1995) La zone de décrochements panafricains des Oubanguides en République Centrafricaine. Comptes Rendus de l’Académie des Sciences (Paris), 320, 63-69.

[40]   Rolin P. (1998) Nouvelles données tectoniques sur le Précambrien en Centrafrique, implication géodynamique. Ed. Collect. Géocam.l/1998. Presse Univ.Yaoundé I P. 240, 224.

[41]   Burg, J.P., Corsini, M., Diop, C. and Maurin, J.C. (1993) Structure et cinématique du Sud de la chaine des Mauritanides: Un système de nappe tégumentaire varisque. Comptes Rendus de l’Académie des Sciences, 317, 697-703.

[42]   Ganno, S., Nzenti, J.P., Ngnotue, T., Kankeu, B. and Kouankap, N.G.D. (2010) Polyphase Deformation and Evidence for Transpressive Tectonics in the Kimbi Area, Northwestern Cameroon Pan-African Fold Belt. Journal of Geology and Mining Research, 2, 001-015.

[43]   Njanko, T., Nédélec, A., Kwékam, M., Siqueira, R. and Esteban, L. (2010) Emplacement and Deformation of the Fomopéa Pluton: Implication for the Pan-African History of Western Cameroon. Journal of Structural Geology, 32, 306-320.

[44]   Heine, C., Zoethout, J. and Müller, R.D. (2013) Kinematics of the South Atlantic rift. Solid Earth, 4, 215-253.

[45]   Fairhead, J.D. (1986) Geophysical Controls on Sedimentation within the African Rift Systems. In: Frostick, L., et al., Eds., Sedimentation in the African Rifts, Geological Society of London Special Publication 25, 19-27.

[46]   Genik, G.J. (1992) Regional Framework, Structural and Petroleum Aspects of Rift Basins in Niger, Chad and the Central African Republic (C.A.R.). Tectonophysics, 213, 169-185.

[47]   Maurin, J.C. and Guiraud, R. (1993) Basement Control in the Development of the Early Cretaceous West and Central African Rift System. Tectonophysics, 228, 81-95.