REFERENCES: AUTHOR = Makris and others YEAR = 83 FIGNUMBER = 3 SOURCE = Bull. Fac. Earth Sci., King Abdulaziz Univ., 6, 435-447. TITLE = Crustal Structure in the Northwestern region of the Arabian Shield and its Transition to the Red Sea. Two different types of mobile seismic stations were used. Ten of these stations were of the MARS-66 type, recording one time and three seismic channels on magnetic tape. Another eight units were of Sprengnether MEQ-800 type, recording one time and one seimic channel on smoked paper. Both types of instruments are equipped with MARK-II geophones. Positions of the shots at sea were fixed by satellite navigation, and the arrivals of sound waves generated by the shots were recorded by an ocean botton seismograph (OBS). For this profile, reverse observations were obtained by one OBS unit which had previously been placed at the end of the marine section. The OBS observed eleven 50 kg shots between 0 and 30 km.
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