干旱区生态环境知识资源中心

A structural interpretation of aeromagnetic data of the Gabal Zubeir area, North Eastern Desert, Egypt, is presented. The average depth to the causative magnetic bodies within the basement complex (intrabasement) is determined in the form of aggregated bodies at two disturbing interfaces 1.0 km and 2.1 km depth through the application of two-dimensional power spectrum. Filtering, combined with analytical downward continuation on the two assigned interface has been carried out-this can assist in discriminating between shallow and deep anomalies. The structural elements affecting the basement complex at the two assigned interfaces with faults and folds (down-faulted and uplifted blocks) are delineated. The fault system is analysed in the form of azimuth-length frequency relations.