. The Earth beneath the sea : History. Ocean bottom; Marine geophysics. 328 HEEZEN AND LAUGHTON G. Abyssal Plains of Adjacent Seas [chap. 14 Although geiieraUy smaller in size than the great abyssal i^lains of the oceans, abyssal plains are also found in the adjacent seas. a. Mediterranean Sea The ^Mediterranean Sea is divided into three deep basins, the Western Mediterranean, the Tyrrhenian Sea and the Eastern Mediterranean. The floor of the Western Mediterranean is nearly completely filled by the Balearic 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80. 98 97 96 95 94 93 92 91 90 89
. The Earth beneath the sea : History. Ocean bottom; Marine geophysics. 328 HEEZEN AND LAUGHTON G. Abyssal Plains of Adjacent Seas [chap. 14 Although geiieraUy smaller in size than the great abyssal i^lains of the oceans, abyssal plains are also found in the adjacent seas. a. Mediterranean Sea The ^Mediterranean Sea is divided into three deep basins, the Western Mediterranean, the Tyrrhenian Sea and the Eastern Mediterranean. The floor of the Western Mediterranean is nearly completely filled by the Balearic 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80. 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 Fig. 11. Chart of the physiographic provinces of the Gulf of Mexico showing the location of the Sigsbee Abyssal Plain. The floor of the eastern Gulf of Mexico is dominated by the Mississippi Cone. Turbidity currents originating at the mouth of the Mississippi have built the large Mississippi Cone and the Sigsbee Abyssal Plain. (After Ewing, Ericson and Heezen, 1958.) Abyssal Plain. The Balearic Abyssal Plain seems to be fed predominantly from the north. It apparently spreads out from the foot of the Rhone Abyssal Cone. However, the plain is probably also fed from the south, as indicated by the numerous submarine canyons of the Algerian continental slope and by the events associated with the Orleansville earthcjuake (Heezen and Ewing, 1955). The area of the Balearic Abyssal Plain probably exceeds 30,000 mi^. A small abyssal plain is found in the center of the nearly circular Tyrrhenian Sea. Many small abyssal hills ])rotrude from this abyssal plain. In the eastern. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hill, M. N. (Maurice Neville), 1919-. New York : Interscience Pub.
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