Preliminary results from a pseudogravity study of the Benue Trough, Nigeria

  • Ofoegbu C
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As part of a Benue Trough project, a pseudogravimetric study of the Benue Trough is being carried out and preliminary results of this study are here presented. Several aeromagnetic profiles have been taken across the Benue Trough and transformed to their corresponding pseudogravimetric profiles using the equivalent layer method. Qualitative interpretation and comparison of the pseudogravimetric, aeromagnetic and gravity profiles have been carried out in order to find possible origins of the short and long wavelength anomalies observed over the trough. The results of this analysis point to the fact that the short wavelength anomalies are possibly due to the minor intrusive bodies at shallow depths, while the medium to long wavelength anomalies are possibly due to the combined effects of variations in the magnetic susceptibility and topography of the underlying basement and deeply seated intrusive bodies. © 1986.

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  • Charles O. Ofoegbu

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