AEROMAGNETIC SURVEY FOR DETERMINING DEPTH TO MAGNETIC SOURCE OF ABAKALIKI AND UGEP AREAS OF THE LOWER BENUE TROUGH, NIGERIA
Journal Title: Engineering and Technology Journal - Year 2016, Vol 1, Issue 1
Abstract
Aeromagnetic data of Abakaliki- Ugep part of the lower Benue Trough was used to calculate the depth to magnetic source of the area. The study area is on latitudes 5o .30' and 6o .30'N and longitudes 8o.00' and 8o.30'E. Qualitative and Quantitative method of interpretation were adopted using spectral analysis method to compute for depth to basement and by visual inspection of aeromagnetic map to delineate structural lineament. The NE and NW are the main trends in the studied area. The magnetic anomalies also suggest a strong folding of the basement in a direction similar to the trend of the trough. The deeper source depth ranges along the profile between 2548m to 4246m, while the shallower depth varies between 637m to 877m.The result also shows a linear depression with sedimentary accumulation trending E-W. The finding of the results indicated that application of Aeromagnetic survey combined with geological studies provide a powerful tool in estimating the depth to basement and delineating the lithological and structural setting of the terrain.
Authors and Affiliations
Ugwu G. Z. , Alasi T. K.
Keywords
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