REFERENCES: AUTHOR = Makris and others YEAR = 83 FIGNUMBER = 6 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, 54 locations were occupied and a total of 7 shots, each of 180 kg charge, were fired. The stations were separated by 5 to 6 km intervals.
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