. The Earth beneath the sea : History . Key to profiles ^^^^^ / '^^V Br' 1 Wm ^^ mm- [tfiiHM 2650 I E 2700 I 2 I 3 â I I i 2650-1 i [Southern Chonnel _^ STOO-T 20 noullcol miles Fig. 26. Profiles of southwestern portion of the Biscay Abyssal Plain, showing feeding channels. Depth in fathoms (uncorrected). Vertical exaggeration, 100 : 1. (After Laughton, 1960.) turbidity flows from the north Avould pour into the Iberia Plain and start to cut a channel back toward the north. The stage reached at present is that the cutting back has left the region of the gap itself and is in the Biscay Plain. Dr
. The Earth beneath the sea : History . Key to profiles ^^^^^ / '^^V Br' 1 Wm ^^ mm- [tfiiHM 2650 I E 2700 I 2 I 3 â I I i 2650-1 i [Southern Chonnel _^ STOO-T 20 noullcol miles Fig. 26. Profiles of southwestern portion of the Biscay Abyssal Plain, showing feeding channels. Depth in fathoms (uncorrected). Vertical exaggeration, 100 : 1. (After Laughton, 1960.) turbidity flows from the north Avould pour into the Iberia Plain and start to cut a channel back toward the north. The stage reached at present is that the cutting back has left the region of the gap itself and is in the Biscay Plain. Dredging, coring and photography of the head of this erosion have shown semi- consolidated pelagic sediments, vertical cliffs and exposed rocks. A similar abyssal gap, the Vema Gap,i has been found between the Hatteras Abyssal Plain and the Nares Abyssal Plain. This is 20 mi wide, 70 mi long and the change of depth of the interplain channel is 170 fm. Associated with the 1 For a new chart of Veina Gap and associated interplain channels see Chapter 12, Fig. 14, p. 247.
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