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South Atlantic (1961). Heezen, Bruce C. and Tharp, Marie. Physiographic Diagram of the South Atlantic Ocean. Together with printed notes. Geol Soc of America.
Indian Ocean (1964). Heezen, Bruce C. and Tharp, Marie. Physiographic Diagram of the South Atlantic Ocean,New York: Geological Society of America. Together with printed notes. Geol Soc of America.
Darwin, Charles (1845). Journal of Researches into the Natural History of the Countries visited During the Voyage of H.M.S. Beagle Round the World, 2nd edition. John Murray.