. The Earth beneath the sea : History . Canon de la Cossidagne du Planier Canon du Cap Couronne 5 20'E Fig. 9. The juncture between the submarine canyons off the French Riviera and those off the Gulf of Lyons. Note the absence of any indication of a major break which should be found if the canyons are respectively drowned river valleys and eroded by turbidity currents as suggested by Kuenen (1953). Contour interval 100 m. (After Bourcart, 1959.) California, the entire slope is cut up into what appears to be a maturely eroded subaerial joattern, very much like the mountain slopes on the adjacen
. The Earth beneath the sea : History . Canon de la Cossidagne du Planier Canon du Cap Couronne 5 20'E Fig. 9. The juncture between the submarine canyons off the French Riviera and those off the Gulf of Lyons. Note the absence of any indication of a major break which should be found if the canyons are respectively drowned river valleys and eroded by turbidity currents as suggested by Kuenen (1953). Contour interval 100 m. (After Bourcart, 1959.) California, the entire slope is cut up into what appears to be a maturely eroded subaerial joattern, very much like the mountain slopes on the adjacent land. Canyon center cores reported by Bourcart (1959) (some taken while the writer was assisting in the operation) indicated the jDresence of sand layers inter- bedded between mud, as in many other submarine canyons. The wall rocks are evidently crystalline along the deeply indented coast of Corsica and both granite and metamorphosed Paleozoics were found by Bourcart along the canyon walls off the Maritime Alps. The rather remarkable conformity between the canyon heads and the west coast bays of Corsica (Fig. 8) is unique. Yet the
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom
