Estimation of Depth to Magnetic Sources Using Gradient Inversion Method: A Case of Aeromagnetic Field of Binji, North-Western Nigeria
No Thumbnail Available
Date
2016-09-01
Journal Title
Journal ISSN
Volume Title
Publisher
Al-Hikmah Journal of Pure & Applied Sciences
Abstract
The depth to magnetic sources has been estimated from gradient inversion analysis of the acquired aeromagnetic magnetic data of Binji, north-western Nigeria. The study area is bounded by Longitude 4° 30’ E and 5° E and Latitude 13° N and 13°30’ N. The total magnetic field was separated into regional and residual fields using least squares polynomial fit, while twenty two (22) profiles of the residual magnetic fields were subsequently used to determine depth to magnetic sources.
The depths vary from 0.22 km to 2.19 km with an average of 1.26 km. Since estimation of depth to magnetic sources is also regarded as a proxy for sedimentary thickness; the results showed that the sedimentary layer is not thick enough for hydrocarbon prospect and therefore confirm that petroleum exploration may not be plausible in the study area.
Description
Keywords
Aeromagnetic, basement depth, gradient inversion, residual anomaly
Citation
Nwankwo et al. (2016). Estimation of Depth to Magnetic Sources Using Gradient Inversion Method: A Case of Aeromagnetic Field of Binji, North-Western Nigeria