phone spacing 25 meters, inner offset 300 meters survey=land area=N.Africa source=Vibroseis spread=offend n1=1325 d1=.004 f1=.004 label1="Time (sec)" n2=120 d2=.025 f2=.300 label2="Offset (km)" n3=1 title="Oz 10" plottpow=1.975586