Abstract
This work deals with the evaluation of the structural set-up of the southern part of Sinai Peninsula, Gulf of Suez and western part of Gulf of Suez from magnetic, gravity, and seismic data. The utilised techniques including the Least Squares separation method suggest NW, NE, and E-W trends. The trend analysis shows north 35°-45° west, north 15°-25° east and E-W which may be related to the Gulf of Suez and Red Sea stresses.The Euler deconvolution illustrates that the area is highly affected by these trends. Depths range from 1 km to more than 3 km below sea level and its magnetic susceptibility ranges between 1 to 3 SI units. The 2.5D magnetic modelling and analytical signal techniques confirm the depths to the magnetic sources deduced by the Euler method, whereas the depth to the basement rocks ranges between 0 km to about 3 km indicating that it is subjected to strong tectonic activities. In addition, two seismic sections (EG-31 and MP-70), compiled by the Egyptian General Petroleum Cooperation (EGPC), were interpreted together with a geologic cross section. The studied area may be divided into several major blocks along the Gulf of Suez area. It can be concluded that the sedimentary was affected by basement tectonics as revealed by the two seismic sections.
Highlights
The studied area lies in the southern part of the Sinai Peninsula, Gulf of Suez and northern part of the Eastern Desert between latitudes 27°50′ and 30°05′ north and longitudes 32°48′ and 34°23′ east covering an area of about 24 000 km2
The results of tectonic trend analysis indicate that most of the predominant directions are north 35°-45° west direction that related to Gulf of Suez and Red Sea tectonics, and the least predominant direction is north 10°-25° east, that related to Gulf of Aqaba tectonics
The application of Euler deconvolution with a suitable sliding window to estimate the position of the subsurface intruded magnetic bodies indicates that the depth to these bodies ranges from 0 km to about 3 km and the magnetic susceptibility ranges between 1 to 3 SI units
Summary
The studied area lies in the southern part of the Sinai Peninsula, Gulf of Suez and northern part of the Eastern Desert (fig. 1) between latitudes 27°50′ and 30°05′ north and longitudes 32°48′ and 34°23′ east covering an area of about 24 000 km. 1) between latitudes 27°50′ and 30°05′ north and longitudes 32°48′ and 34°23′ east covering an area of about 24 000 km. 1) between latitudes 27°50′ and 30°05′ north and longitudes 32°48′ and 34°23′ east covering an area of about 24 000 km2 It is a Tertiary cratonic rift south of Egypt’s Sinai Peninsula between North-Eastern Africa and the Arabian Peninsu-. The tectonics of this area has been constructed using different geophysical tools (e.g., aeromagnetic, land magnetic gravity, and seismic). These tectonics were analyzed from deep depths to show depths along the studied area
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