. The Earth beneath the sea : History . 0 12 3 4 5 NAUTICAL MILES CONTOUR INTERVAL 25 FATHOMS I Uss. Fig. 13. The Ganges Submarine Trough. Contours are from a detailed survey by the Pakistan Navy. The change in gradient between 200 and 225 fm may be an error of position or alternatively due to a small fault on the floor of the trough. Note the absence of any appreciable tributaries along the sides of the trough. enough for either ravines or gullies to be applicable names (Fig. 14) (Shepard, 1955). These stop on the slope at depths of approximately 33 fm (60 m). They are found off the portions
. The Earth beneath the sea : History . 0 12 3 4 5 NAUTICAL MILES CONTOUR INTERVAL 25 FATHOMS I Uss. Fig. 13. The Ganges Submarine Trough. Contours are from a detailed survey by the Pakistan Navy. The change in gradient between 200 and 225 fm may be an error of position or alternatively due to a small fault on the floor of the trough. Note the absence of any appreciable tributaries along the sides of the trough. enough for either ravines or gullies to be applicable names (Fig. 14) (Shepard, 1955). These stop on the slope at depths of approximately 33 fm (60 m). They are found off the portions of the Birdfoot Delta which have recently built across the shelf so that sediments are being added to the continental slo]ie. The gullies are about 8 fm (15 m) deep on the average. They have small hills and depressions along their courses and mounds out beyond. Tributaries are almost entirely missing among these gullies. A few valleys are found in the foreset slope of the Eraser Delta (Mathews and Shepard, 1962). These also stop on the slope with many hills outside. The gullies in the Mediterranean off the Rhone Delta (van Straaten, 1959) differ only in having a suggestion of natural levees along
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom
