Saudi Arabian refraction profile: Crustal structure of the Red Sea-Arabian shield transition☆

摘要: Abstract An interpretation of deep seismic sounding measurements across the ocean-continent transition Red Sea-Saudi Arabian Shield is presented. Using synthetic seismograms based on ray tracing we achieve a good fit to observed traveltimes and some characteristic amplitudes record sections. Crustal thickness varies along profile from 15 km in Sea Shelf 40–45 beneath Asir Mountains Saudi Shield. Based computation our model requires velocity inversion Sea-Arabian transition. High-velocity oceanic mantle material above continental crust mantle, thereby forming double-layered Moho. Our results indicate thick sedimentary basin shelf area, zone high velocities within (probably uplifted lower crust). Prominent secondary low-frequency arrivals are interpreted as multiples.