Assessment of the Crustal Thickness within Southern Bida Basin and Surrounding Basement Rocks, North Central Nigeria, using Gravity Data
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Abstract
The crustal thickness within the Southern Bida Basin has been determined using Bouguer Gravity Data. This study focuses on a region situated in the southern part of the Bida Basin, a significant inland sedimentary basin in North Central Nigeria. Two distinct methods were employed to estimate crustal thickness from Bouguer anomaly values: (i) an empirical relationship between crustal thickness and Bouguer anomaly, and (ii) spectral analysis of the radial wave number. The average crustal thickness was derived by averaging results obtained from both methods. Additionally, a linear equation (HC = 34.39 – 0.17BG) was formulated for the study area, enabling straightforward determination of crustal thickness from any given Bouguer anomaly value. The estimated crustal thickness in the study area ranges from 32 km to 40 km, aligning closely with the overall crustal thickness of Nigeria as reported by Daniyan et al. (2002). The tectonic stability of the study area, situated on the stable African plate, further underscores its significance within the broader geological context of Nigeria.
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Ajakaiye, D. E., & Ojo, S. B. (1989). Preliminary Interpretation of Gravity Measurement in the Nupe Basin Area. Lagos, Nigeria. Elizabethan Publish.
ASTM, L. (2010). Standard Guide for Using the Gravity Method for Subsurface Investigation, ASTM International, West Conshohocken
Bansal, A. R., & Dimri, V. P. (2001). Depth Estimation from the Scaling Power Spectral Density of Non Stationary Gravity Profile. Pure and Applied Geophysics, 158, 799–812.
Braide, S. P. (1992). Geological Development Origin and Energy of Mineral Resources Potential of the Lokoja Formation in the Southern Bida Basin. Journal of Mining and Geology, 28, 33-44.
Bauer, P. W., Johnson, P. S., & Kelson, K. I. (1999) Geology and hydrogeology of the southern Taos valley, Taos County, New Mexico: Socorro, New Mexico Bureau of Geology and Mineral Resources, Final Technical Report to New Mexico Office of the State Engineer, 56 pages, 4 plates.
Brown, C., & Girlder, R. W. (1980). Interpretation of African Gravity and its Implication for the Breakup of the Continent. Journal of Geophysics, 85, 6443-6444.
Daniyan, M. A., Udensi, E. E., Ajakaiye, D. E., & Ige, T. E. (2002). The Crustal Thickness in Nigeria: Preliminary Result from Bouguer Gravity AnomalyData. Nigerian Journal of Technological Research, 1, 25-31
Demenitskaya, R. M. (1958). Planetary Structure and there Reflection in Bouguer Anomaly. Geology Bulletine, 8.
Hofstetter, A., Dorbath, C., Rybakov, M. & Goldmid, V. (2000). Crustal and Upper Mantle Structure across the Dead Sea Rift and Israel from Teleseismic P-Wave Tomography and Gravity Data. Tectonophysics, 327, 37–59.
Lewis, B. R. T. (1983). The Process of Formation of Ocean Crust. Science, 220, 151–157, doi: 10.1126/science.220.4593.151.
Mishra, D. C. (2000). Gravity Anomaly. National Geophysical Research Institute, Hyderabad, India. Geophysics and Geochemistry, 3.
Obaje, N. G., Musa, M. K., Odoma, A. N., & Hamza, H. (2009). The Bida Basin in North Central Nigeria. Sedimentology and Petroleum Geology. Journal of Petroleum and Gas Exploration Research, 1(1), 1-13.
Obaje, N. G., Moumouni, A., Goki, N. G., & Chanda, M. S. (2011). Stratigraphy, Paleogeography and Hydrocarbon Resource Potentials of the Bida Basin in North Central Nigeria. Journal of Miningand Geology, 47(2), 97-114.
Olusola, J. O., Suraj, A. A., Temitope, M. A., & Aminat, O. A. (2011). Sedimentological and Geochemical Studies of Maastrichtian Clays in Bida Basin, Nigeria: Implication for Resource Potential. Centre point Journal, 17(2), 71-88.
Poudjom Djomani, Y.H., Diament M. & Albouy Y., (1992). Mechanical Behaviour of the Lithosphere Beneath the Adamawa Uplift, Cameroon, West Africa, Based on Gravity Data. Journal of African Earth Sciences, 15, 81-90.
Shekwolo, P. D. (1992). Regional Hydrogeology of Bida Basin. Unpublished (Ph.D.Thesis). Ahmadu Bello University, Zaria, Nigeria.
Spector, A., & Grant, F.S. (1970). Statistical Models for Interpreting Aeromagnetic Data. Geophysics, 35, 293-302.
Syberg, F. J. R. (1972). A Fourier Method for the Regional-Residual Problem of Potential Fields. Geophysics Prospective, 20, 47-75.
Tealeb, A., & Riad, S. (1986). Regional Tectonics of Sinai Peninsula Interpreted from Gravity and Deep Seismic Data. E. G .S. 5th Annual Meeting, 29(30), l8-49.
Woolland, G. P. (1959). Crustal Structure from Gravity and Seismic Measurements. Geophysics Research, 64 (10), 152-154.
Woolland, G. P. & Strange, W. E. (1962). Gravity Anomalies and Crust of Earths in the Pacific Basin. Geophysical Monograph, 6, 60-80