Interpretation of High Resolution Aeromagnetic Data for Hydrocarbon Potentials over Parts of Nasarawa and Environs North-Central Nigeria
World Journal of Applied Physics
Volume 4, Issue 1, March 2019, Pages: 1-11
Received: Jun. 20, 2018;
Accepted: Aug. 1, 2018;
Published: May 29, 2019
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Rowland Akuzigi Ayuba, Department of Geology, Moddibbo Adama University of Technology Yola, Adamawa State, Nigeria
Ahmed Nur, Department of Geology, Moddibbo Adama University of Technology Yola, Adamawa State, Nigeria
Spectral depth analysis over parts of Nasarawa area was carried out using high resolution aeromagnetic data to determine the depth to bottom of magnetic sources, to enable build up a subsurface picture of basement configuration and possible sediments distribution that promote hydrocarbon exploration in the area. The study revealed one and in most cases two source model, these are the deep magnetic anomaly sources and the shallow magnetic anomaly sources. The deep sources anomalies vary between 2.23km and 5.11km with an average depth of 3.05km and this represents the magnetic basement depth. The shallow anomaly sources vary from 0.07km to 0.42km with an average of 0.21km and this may be regarded as the magnetic intrusions into the sediment, probably through the magmatic activities. The revelation from this study of 3.05km magnetic basement depth at the southern part of the area is synonymous to depth of Cretaceous sediment, which is very significant to hydrocarbon generation potential in the area. The result shows the graben nature and indicated the existence of a deeper sub basin in the area. The central and south-western parts with higher sedimentary thicknesses are the most probable sites for hydrocarbon accumulation.
Rowland Akuzigi Ayuba,
Interpretation of High Resolution Aeromagnetic Data for Hydrocarbon Potentials over Parts of Nasarawa and Environs North-Central Nigeria, World Journal of Applied Physics.
Vol. 4, No. 1,
2019, pp. 1-11.
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