. The Earth beneath the sea : History . AA 43 42 41 2700 . AH -AJ -AK -AI -AL -AM âAN ,K â¢.'â¢V-âAO -AP -AG AT 'AU ^AR AS h AZI ^ I 40 39 38 45 Fig. 22. Forty-eight profiles across the Northwest Atlantic Mid-Ocean Canyon. (After Heezen et al., 1959.) is associated with an abyssal gap through a ridge dividing the northwest arm of the Sohm Plain from the rest. In the Indian Ocean, soundings taken by the Swedish Deep-Sea Expedition in the Albatross have shown the existence of trough-shaped features in an otherwise flat and featureless floor, which have been interpreted as grabens

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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom