Structural set-up of Southern Sinai and Gulf of Suez areas indicated by geophysical data

• Main Author: T. Rabeh
• Format: Article
• Language: English
• Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 2003-06-01
• Series: Annals of Geophysics
• Subjects: geomagnetic survey; sub-surface structures; aeromagnetic data; seismic lines
• Online Access: http://www.annalsofgeophysics.eu/index.php/annals/article/view/3475
• ISSN: 1593-5213; 2037-416X

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.