An interpretation of high resolution aeromagnetic data was carried out to provide new information about the study area. Located between latitude 10° 30 ' N and 11° 00 ' N and longitude 8° 30 ' E and 9° 00 ' E, the interpretation revealed previously unknown folds and magnetic anomaly with a signature that is similar to those associated with ring complexes in the study area but without the surface manifestation that is associated with the complexes. Qualitatively interpreted as unexposed ring complex, the magnetic anomaly is underlain by cross-over of major lineaments; implying presence of weak zone that probably allowed the volcanic eruption that initiated the emplacement of the source of the anomaly. A depth that ranges from outcrop to 1200 m and from outcrop to 1800 m is respectively suggested for the unexposed ring complex and folds by the Euler deconvolution results.
Bennett, J.N., Turner, D.C. and Ike, E.C. (1984) The Geology of Some Northern Nigerian Anorogenic Ring Complexes. Overseas Geology and Mineral Resources, 61, 65 p.
Jacobson, R.R.E. and Macleod, W.N. (1977) Geology of the Liruei, Banke and Adjacent Younger Granite Ring Complexes. Bulletin of Geological Survey of Nigeria, 33, 1-117.
Kinnaird, J.A. (1985) Mineralization and Hydrothermal Alteration of the Alkaline Anorogenic Ring Complexes of Nigeria. Journal of African Earth Sciences, 3, 229-251. http://dx.doi.org/10.1016/0899-5362(85)90038-7
Turner, D.C. (1972) Structural and Tectonic Setting of the Younger Granite Ring Complexes of Nigeria and Southern Niger. Part I: Ring Complexes and Their Component Units. Savana I, 223-236.
Turner, D.C. (1989) Structure and Petrology of the Younger Granite Complexes. In: C. A. Kogbe, Ed., Geology of Nigeria, 2nd Edition, Elizabethan Publ. Co., Lagos, 175-190.
Ajakaiye, D.E. (1968) A Gravity Interpretation of the Liruei Younger Granite Ring Complex of Northern Nigeria. Geological Magazine, 105, 256-263. http://dx.doi.org/10.1017/S0016756800052274
Ajakaiye, D.E. (1970) Gravity Measurements over the Nigerian Younger Granite Province. Nature, 225, 50-52. http://dx.doi.org/10.1038/225050b0
Ajakaiye, D.E. (1974) A Gravity Profile across the Banke Ring Complex, Nigeria. Geoexploration, 12, 59-66. http://dx.doi.org/10.1016/0016-7142(74)90007-6
Ajakaiye, D.E. (1989) A Gravity Survey over the Nigerian Younger Granite Province. In: C. A. Kogbe, Ed., Geology of Nigeria, 2nd Edition, Elizabethan Publ. Co., Lagos, 227-244.
Ajakaiye, D.E. and Sweeney, J.F. (1974) A Three-Dimensional Gravity Interpretation of the Dutsin-Wai Complex, Nigerian Younger Granite Province. Tectonophysics, 24, 331-341. http://dx.doi.org/10.1016/0040-1951(74)90016-X
Ajakaiye, D.E., Hall, D.H. and Millar, T. (1982) Preliminary Interpretation of Aeromagnetic Data across the Central Crystalline Shield of Nigeria. Annual Report, Centre for Precambrian Studies, 63-68.
Ajakaiye, D.E., Hall, D.H. and Millar, T. (1985) Interpretation of Aeromagnetic Data across the Central Crystalline Shield Area of Nigeria. Geophysical Journal of the Royal Astronomical Society, 83, 503-517. http://dx.doi.org/10.1111/j.1365-246X.1985.tb06500.x
Ajakaiye, D.E., Hall, D.H., Ashiekaa, J.A. and Udensi, E.E. (1991) Magnetic Anomalies in the Nigerian Continental Mass Based on Aeromagnetic Surveys. Tectonophysics, 192, 211-230. http://dx.doi.org/10.1016/0040-1951(91)90258-T
Aina, A. and Olarewaju, V.O. (1992) Geological Interpretation of Aeromagnetic Data in Some Part of Northcentral Nigeria. Journal of African Earth Sciences, 14, 103-109. http://dx.doi.org/10.1016/0899-5362(92)90059-L
Ofoeghu, C.O. and Hein, K. (1991) Analysis of Magnetic Data over Part of the Younger Granite Province of Nigeria. Pure and Applied Geophysics, 136, 173-189. http://dx.doi.org/10.1007/BF00876370
Telford, W.M., Geldert, L.P., Sheriff, R.E. and Keys, D.A. (1990) Applied Geophysics. Cambridge University Press, Cambridge.
Blakely, R.S. (1995) Potential Theory in Gravity and Magnetic Applications. Cambridge University Press, Cambridge. http://dx.doi.org/10.1017/CBO9780511549816
Oluyide, P.O. (1988) Structural Trends in the Nigerian Basement Complex. Precambrian Geology of Nigeria, Geological Survey of Nigeria, 93-98.
Bowden, P. and Turner, D.C. (1974) Peralkaline and Associated Ring Complexes in the Nigeria-Niger Province, West Africa. In: H. Sorensen, Ed., Alkaline Rocks, John Wiley & Sons New York, 330-351.
Wright, J.B. (1970) Control of Mineralization in the Older and Younger Tin Fields of Nigeria. Economic Geology, 65, 945-951. http://dx.doi.org/10.2113/gsecongeo.65.8.945
Kinnaird, J.A. and Bowden, P. (1987) African Anorogenic Alkaline Magmatism and Mineralization—A Discussion with Reference to the Niger-Nigeria Province. Geological Journal, 22, 279-340. http://dx.doi.org/10.1002/gj.3350220622
Mantovani, M.S.M., Rugenski, A., Diogo, L.A. and Shukowsky, W. (2005) Integrated Geophysical Investigation of a Possible New Alkaline Occurrence in SE Brazil. Journal of South American Earth Sciences, 20, 259-266. http://dx.doi.org/10.1016/j.jsames.2005.05.011
Dutra, A.C. and Marangoni, Y.R. (2009) Gravity and Magnetic 3D Inversion of Morro do Engenho Complex, Central Brazil. Journal of South American Earth Sciences, 28, 193-203. http://dx.doi.org/10.1016/j.jsames.2009.02.006
Dutra, A.C., Marangoni, Y.R. and Junqueira-Brod, T.C. (2011) Investigation of the Goiás Alkaline Province, Central Brazil: Application of Gravity and Magnetic Methods. Journal of South American Earth Sciences, 33, 43-55. http://dx.doi.org/10.1016/j.jsames.2011.06.004
Louro, V.H.A. and Mantovani, M.S.M. (2012) 3D Inversion and Modeling of Magnetic and Gravimetric Data Characterizing the Geophysical Anomaly Source in Pratinha I in the Southeast of Brazil. Journal of Applied Geophysics, 80, 110-120. http://dx.doi.org/10.1016/j.jappgeo.2012.01.013
Kogbe, C.A. (1985) Landsat Imagery Interpretation Map of Curve-Linear Structures in North-Central Nigeria. Journal of African Earth Sciences, 3, 269-270. doi.org/10.1016/0899-5362(85)90041-7
Wright, J.B. (1989) Volcanic Rocks in Nigeria. In: C. A. Kogbe, Ed., Geology of Nigeria, 2nd Edition, Elizabethan Publ. Co., Lagos, 125-173.
Thompson, D.T. (1982) EULDPH—A Technique for Making Computer Assisted Depth Estimates for Magnetic Data. Geophysics, 47, 31-37. http://dx.doi.org/10.1190/1.1441278
Reid, A.B., Allsop, J.M., Granser, H., Millett, A.J. and Somerton, I.W. (1990) Magnetic Interpretation in Three Dimensions Using Euler Deconvolution. Geophysics, 55, 80-91. http://dx.doi.org/10.1190/1.1442774