. The Earth beneath the sea : History . ^ Coymaa B Trench Jamaica Ridge Beafa Ridge 2 . li Colombia Abyssal Plain _^^ Beata Rise Aruba Abyssol Gap i 1 ^ _ BiM ^ â â ^^1 1000 2000 3000 100 200 300 Nautical miles 400 500 Fig. 14. Caribbean abyssal plains. Abyssal Plain, which spreads out from the foot of the Magdalena Cone. This abyssal plain is primarily fed from the south by the Magdalena River (Heezen, 1955, 1956a) and to a lesser extent from the west via the submarine canyons of Costa Rica and possibly Panama. Seismic-refraction studies off the northern coast of Colombia indicate that the se

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. The Earth beneath the sea : History . ^ Coymaa B Trench Jamaica Ridge Beafa Ridge 2 . li Colombia Abyssal Plain _^^ Beata Rise Aruba Abyssol Gap i 1 ^ _ BiM ^ â â ^^1 1000 2000 3000 100 200 300 Nautical miles 400 500 Fig. 14. Caribbean abyssal plains. Abyssal Plain, which spreads out from the foot of the Magdalena Cone. This abyssal plain is primarily fed from the south by the Magdalena River (Heezen, 1955, 1956a) and to a lesser extent from the west via the submarine canyons of Costa Rica and possibly Panama. Seismic-refraction studies off the northern coast of Colombia indicate that the sedimentary beds thin from approximately 3 km at the base of the continental slope to less than 2 km on the northern part of the Colombia Abyssal Plain (Ewing, Antoine and Ewing, 1960). The Colombia Abyssal Plain is separated from the Venezuela Basin by the Beata Ridge, which extends in a southerly direction from Cape Beata on the island of Hispaniola. However, north of Aruba there is an abyssal gap between the southern end of the Beata Ridge and the continental slope of South America. The Aruba Gap provides a narrow connection between the Colombia Abyssal

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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom