GEOLOGY AND GEOHYDROLOGY 



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EXTRAPOLATIONS AND INTERPOLATIONS 



▼ LOCATION OF RECEIVING STATIONS 



-p^^TTvrTTTTTV^ 2,438 SEISMIC VELOCITY IN METERS/SEC. 



^Sy^'7 VERTICAL EXAGGERATION = 5X 



Fig. 4 Deep seismic refraction profiles of Enewetalt Atoll. [Adapted from Raitt, 1957.} 



