Abstract

Oguta and Okigwe are landmark towns within the Benue trough that are surrounded by many physical features, which may have some tectonic implications. Aeromagnetic maps covering this study area were digitized along flight lines, electronically gridded and contoured. Other data processing techniques like spectral analysis, modeling etc were applied. The results indicated that the study area is characterized by low positive and negative anomaly amplitudes, smooth contours, magnetic lineaments etc. Amongst other findings, the magnetic signatures trending in the NE – SW show the existence of the charcot fault zone within this region. Hence civil structures like dams, bridges etc. if located along or near this lineament zone may experience serious damages in case of any crustal disturbances.

Key words: Aeromagnetic, tectonic, Okigwe, lineament, charcot.