A Geophysical Study of the Red Sea

Abstract

A description is given of the bottom topography, seismic refraction profiles, magnetic and gravity observations in the Red Sea. The deep trough along the centre is associated with positive Bouguer gravity anomalies, large magnetic anomalies and seismic velocities of 7.1 km/s. It appears that this represents a fissure in the continental crust, partly filled with basic, igneous material. A structural map, based on all the geophysical evidence, has been prepared and it is suggested that the complex Red Sea rift was formed as a result of crustal tension. Finally, a discussion is given of the Red Sea as part of the world rift system.