Integrating Aeromagnetic and Landsat ETM data in Structural Interpretation of upper Benue Trough Nigeria

Abstract

This study was aimed at investigating the Structural styles of the Upper Benue Trough as revealed in the Aeromagnetic and Landsat –ETM data. The Lineaments varied between 0 and 400m per 25km square in area and comprised faults, joints, ridges and folds – a majority of them trending in the NE – SW direction. The topography ranged from 272m to 900m in the North East region and from 200m to 915m in the North West region. An average sediment thickness of 3.98km was estimated which could favor hydrocarbon accumulation and maturation. Series of possible mineralization veins (especially those very close to faults) were interpreted which could house minerals like Lead, anhydrates and Tin. A semi-circular Horst was interpreted around Lafia which could possibly contain hydrocarbon beneath- within sediments draped over at high corners.