. The Earth beneath the sea : History . (Sh»>W#^ \ ps**^ t«4,-4 -+":^Tir^^'5f-«k. t 1 i 1 i Ml 6 0 1 2 3 APPROX SCALE NAUTICAL MILES P'ig. 14. Portion of a profile about 90 miles bearing 256°T from Bermuda, on the Bermuda Rise. Source : 25,000 joule sparker Receiver: 40 ft, five-element hydrophone array Towing speed: about 5 knots Analysis filter: 100-200 c/s band-pass SECONDS TRAVEL TIME .*.C\J . ' ,.0

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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom