keywords: Heat flow, geothermal, curie, energy and electricity
The Quantitative Interpretations of Aeromagnetic Data of Bashar and its environs, northcentral Nigeria were carried out with the aim of determining the Curie Point Depth, Geothermal Gradient, Heat Flow, and depth to magnetic source. The geomagnetic gradient was removed from the aeromagnetic data using the International Geomagnetic Reference Field (IGRF) and the obtained data were shown as Total Magnetic Intensity (TMI) maps. Software used for the analysis include: Oasis Montaj Version 8.4, Matlab Version R2010a, Grapher 5, SUFER 11, Georient and Microsoft Excel. The Total Magnetic Intensity (TMI) map has an intensity ranges from 32876.4 to 33189.7 nT, showing significant magnetic high and low signatures. The Reduce-to-Equator (RTE) map has an intensity range of -732.6 to -405.5 nT. The heat flow increases with decrease in Curie point depth, and the Curie depths vary from 5.19 to 9.53 km. The heat flow values are suggestive of anomalous geothermal conditions and are recommended for detailed geothermal exploration. However, the geothermal gradient varies from 60.86 to 111.75oC km-1 and heat flow value ranges from 152.15 to 279.38 mWm-2. The average geothermal gradients and heat flow is an indication that the area is suitable for harnessing of geothermal energy, which could be used to generate electricity.