The aim of this project was to study the deep-sea basins of the Atlantic Ocean. Described in this paper are the morphology and deep crustal structure of the Argentine, Brazil, Cape, Angola, North American, Newfoundland, Canary, Sierra Leone, Iberia, and West-European basins. It is shown that they differ substantially in geological history. Also different are their internal structures. The subsidence of the respective segments of the Earth's crust took place not only following the spreading model, but also as a result of crustal extension between the spreading ridge and the continental margin, caused by the pulling apart of the continental blocks.
deep-sea basins, Atlantic ocean, spreading model, crustal extension, spreading ridge, continental margin.
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