STRUCTURAL PATTERN OF NORTH RAS MILLAN AREA, SOUTHERN SINAI PENINSULA, EGYPT, AS DEDUCED FROM GROUND MAGNETIC SURVEY

Abstract

The present study aims mainly to delineate and outline the structural pattern of North Ras Millan area, Southern Sinai Peninsula, Egypt. The study area is delimited by latitudes 27° 55' & 28° 0' N and longitudes 33° 55' & 34° 0' E. Interpretation of ground magnetic data is carried out in the study area. Ground magnetic anomalies in the area reflect significant features on the basement tectonics, on the deep-seated structures and on the detailed geologic mapping. Major faults and unexposed basic dykes, which play an important role in the emplacement of mineralized bodies, have been interpreted and two tectonic blocks are suggested. The ground magnetic features show major NW – SE lineaments, which associated with the Gulf of Suez, and NE – SW trends with their intersections between them indicating locations of magmatic intrusions of basic nature, as well as N-S (Meridional trend). The magnetic depth computations indicate shallow to nearsurface magnetic sources, as well as deeper ones. The constructed residual, regional and upward continuation maps, respectively, emphasize these features. The surface rocks of Quaternary wadi sediments, Cambro-Ordovician sandstone and granite rocks are reflected on the magnetic map. The forementioned faults are interpreted from the magnetic maps; as total magnetic, RTP, residual, regional and upward continuation maps.