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Map of the Gulf of Guinea, showing the chain of islands formed by the Cameroon line of volcanoes.The Gulf of Guinea is the part of the Atlantic Ocean ...
Map of the Gulf of Guinea, showing the chain of islands formed by the Cameroon line of volcanoes.The Gulf of Guinea is the part of the Atlantic Ocean west of Africa. The intersection of the Equator and Prime Meridian (zero degrees latitude and longitude) is in the gulf. According to the International Hydrographic Organization, the Gulf's oceanic border is the rhumb line that runs from Cape Palmas in Liberia to Cape Lopez in Gabon.
Among the many rivers that drain into the Gulf of Guinea are the Niger and the Volta. The coastline on the gulf includes the Bight of Benin and the Bight of Bonny.
The Niger River in particular deposited organic sediments out to sea over millions of years which became crude oil. The Gulf of Guinea region, along with the Congo River delta and Angola further south, are expected to provide around a quarter of the United States' oil imports by 2015. This region is now regarded as one of the world's top oil and gas exploration hotspots.
Origin of the Name
The origin of the name Guinea is thought to be an area in the region, although the specifics are disputed. Bovill (1995) gives a thorough description:
name Guinea is said to derived form the name Ghana, picked up by the Portuguese in the Maghrib. The present writer finds this unacceptable. The name Guinea has been in use both in the Maghrib and in Europe long before Prince Henry's time. For example, on a map dated about 1320 by the Genoese cartographer Giovanni di Carignano, who got his information about Africa from a fellowcountryman in Sijilmasa [ancient trading city in North Africa], we find Gunuia, and in the Catalan atlas of 1375 as Ginyia. A passage in Leo [Africanus] (vol. III, 822) points to Guinea having been a corrupt form of Djenne [2,000 year old city in central Mali on Niger river], less famous than Ghana but nevertheless for many centuries famed in the Maghrib as a great market and a seat of learning. The relevant passage reads: "The Kingdom of Ghinea . . . called by the merchants of our nation Gheneoa, by the natural inhabitants thereof Genni and by the Portugals and other people of Europe Ghinea." But it seems more probable that Guinea derives from aguinaou, the Berber for Negro. Marrakech [city in southeastern Morocco] has a gate, built in the twelfth century, called the Bab Aguinaou, the Gate of the Negro (Delafosse, Haut-Sénégal-Niger, II, 277-278). The modern application of the name Guinea to the coast dates only from 1481. In that year the Portuguese built a fort, São de Mina (modern day Elmina), on the Gold Coast, and their king, John II, was permitted by the Pope [Sixtus II or Innocent VIII] to style himself Lord of Guinea, a title that survived until the recent extinction of the monarchy.
Modern Uses of the Name
The name Guinea was also applied to south coast of West Africa, north of the Gulf of Guinea, which became known as "Upper Guinea", and the west coast of Southern Africa, to the east, which became known as "Lower Guinea." The name "Guinea" is still attached to the names of three countries in Africa: Guinea, Guinea-Bissau, and Equatorial Guinea, as well as New Guinea in Melanesia