Abstract
One-dimensional spectral analysis of aeromagnetic data over the Anambra Basin, which is a subsidiary depression within the Benue Trough of Nigeria, was made to map the sedimentary thickness variations and the Curie temperature isotherm. Sedimentary thickness (depth to the basement) varies between 0.9 and 5.6 km, while depth to the Curie temperature isotherm varies between 16 and 30 km below the mean sea level. The result also shows that the Curie temperature isotherm within the basin is not a horizontal level surface, but is undulating, and the geothermal gradients associated with it range between 20 and 35 °C/km.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have