Gulf of Guinea - AbsoluteAstronomy.com

The Gulf of Guinea is the northeasternmost part of the tropical Atlantic Ocean

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

between Cape Lopez

Cape Lopez

Cape Lopez is a 55 km-long peninsula on the coast of west central Africa, in the country of Gabon. It separates the Gulf of Guinea from the South Atlantic Ocean, and is located at latitude -0.63° and longitude 8.7° . Lying in the delta of the Ogooué River, it shelters the seaport of Port-Gentil...

in Gabon

Gabon

Gabon , officially the Gabonese Republic is a state in west central Africa sharing borders with Equatorial Guinea to the northwest, Cameroon to the north, and with the Republic of the Congo curving around the east and south. The Gulf of Guinea, an arm of the Atlantic Ocean is to the west...

, north and west to Cape Palmas

Cape Palmas

Cape Palmas is a headland on the extreme southeast end of the coast of Liberia, West Africa, at the extreme southwest corner of the northern half of the continent. The Cape itself consists of a small, rocky peninsula connected to the mainland by a sandy isthmus. Immediately to the west of the...

in Liberia

Liberia

Liberia , officially the Republic of Liberia, is a country in West Africa. It is bordered by Sierra Leone on the west, Guinea on the north and Côte d'Ivoire on the east. Liberia's coastline is composed of mostly mangrove forests while the more sparsely populated inland consists of forests that open...

. The intersection of the Equator

Equator

An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass....

and Prime Meridian

Prime Meridian

The Prime Meridian is the meridian at which the longitude is defined to be 0°.The Prime Meridian and its opposite the 180th meridian , which the International Date Line generally follows, form a great circle that divides the Earth into the Eastern and Western Hemispheres.An international...

(zero degrees latitude

Latitude

In geography, the latitude of a location on the Earth is the angular distance of that location south or north of the Equator. The latitude is an angle, and is usually measured in degrees . The equator has a latitude of 0°, the North pole has a latitude of 90° north , and the South pole has a...

and longitude

Longitude

Longitude is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees, minutes and seconds, and denoted by the Greek letter lambda ....

) is in the gulf.

Among the many rivers that drain into the Gulf of Guinea are the Niger

Niger River

The Niger River is the principal river of western Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in southeastern Guinea...

and the Volta

Volta River

The Volta is a river in western Africa that drains into the Gulf of Guinea. It has three main tributaries—the Black Volta, White Volta and Red Volta...

. The coastline on the gulf includes the Bight of Benin

Bight of Benin

The Bight of Benin is a bight on the western African coast that extends eastward for about 400 miles from Cape St. Paul to the Nun outlet of the Niger River. To the east it is continued by the Bight of Bonny . The bight is part of the Gulf of Guinea...

and the Bight of Bonny

Bight of Bonny

The Bight of Bonny is a bight off the West African coast, in the easternmost part of the Gulf of Guinea...

.

The Niger River

Niger River

The Niger River is the principal river of western Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in southeastern Guinea...

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

Congo River

The Congo River is a river in Africa, and is the deepest river in the world, with measured depths in excess of . It is the second largest river in the world by volume of water discharged, though it has only one-fifth the volume of the world's largest river, the Amazon...

delta

River delta

A delta is a landform that is formed at the mouth of a river where that river flows into an ocean, sea, estuary, lake, reservoir, flat arid area, or another river. Deltas are formed from the deposition of the sediment carried by the river as the flow leaves the mouth of the river...

and Angola

Angola

Angola, officially the Republic of Angola , is a country in south-central Africa bordered by Namibia on the south, the Democratic Republic of the Congo on the north, and Zambia on the east; its west coast is on the Atlantic Ocean with Luanda as its capital city...

further south, are expected to provide around a quarter of the United States' oil import

Import

The term import is derived from the conceptual meaning as to bring in the goods and services into the port of a country. The buyer of such goods and services is referred to an "importer" who is based in the country of import whereas the overseas based seller is referred to as an "exporter". Thus...

s by 2015. This region is now regarded as one of the world's top oil and gas exploration hotspots.

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:

The name Guinea is usually said to have been a corrupt form of 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 fellow-countryman in Sijilmas

Sijilmasa

Sijilmasa was a medieval trade entrepôt at the northern edge of the Sahara Desert in Morocco. The ruins of the town lie along the River Ziz in the Tafilalt oasis near the town of Rissani...

[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 Jenne

Djenné

Djenné is an Urban Commune and town in the Inland Niger Delta region of central Mali. In the 2009 census the commune had a population of 32,944. Administratively it is part of the Mopti Region....

[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.

The name "Guinea

Guinea (region)

Guinea is a traditional name for the region of Africa that lies along the Gulf of Guinea. It stretches north through the forested tropical regions and ends at the Sahel.-History:...

" was also applied to south coast of West Africa

West Africa

West Africa or Western Africa is the westernmost region of the African continent. Geopolitically, the UN definition of Western Africa includes the following 16 countries and an area of approximately 5 million square km:-Flags of West Africa:...

, north of the Gulf of Guinea, which became known as "Upper Guinea", and the west coast of Southern Africa

Southern Africa

Southern Africa is the southernmost region of the African continent, variably defined by geography or geopolitics. Within the region are numerous territories, including the Republic of South Africa ; nowadays, the simpler term South Africa is generally reserved for the country in English.-UN...

, 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

Guinea , officially the Republic of Guinea , is a country in West Africa. Formerly known as French Guinea , it is today sometimes called Guinea-Conakry to distinguish it from its neighbour Guinea-Bissau. Guinea is divided into eight administrative regions and subdivided into thirty-three prefectures...

, Guinea-Bissau

Guinea-Bissau

The Republic of Guinea-Bissau is a country in West Africa. It is bordered by Senegal to the north, and Guinea to the south and east, with the Atlantic Ocean to its west....

, and Equatorial Guinea

Equatorial Guinea

Equatorial Guinea, officially the Republic of Equatorial Guinea where the capital Malabo is situated.Annobón is the southernmost island of Equatorial Guinea and is situated just south of the equator. Bioko island is the northernmost point of Equatorial Guinea. Between the two islands and to the...

, as well as New Guinea

New Guinea

New Guinea is the world's second largest island, after Greenland, covering a land area of 786,000 km2. Located in the southwest Pacific Ocean, it lies geographically to the east of the Malay Archipelago, with which it is sometimes included as part of a greater Indo-Australian Archipelago...

in Melanesia

Melanesia

Melanesia is a subregion of Oceania extending from the western end of the Pacific Ocean to the Arafura Sea, and eastward to Fiji. The region comprises most of the islands immediately north and northeast of Australia...

Geography

The International Hydrographic Organization

International Hydrographic Organization

The International Hydrographic Organization is the inter-governmental organisation representing the hydrographic community. It enjoys observer status at the UN and is the recognised competent authority on hydrographic surveying and nautical charting...

defines the southwest extent of the Gulf of Guinea as "A line running Southeastward from Cape Palmas

Cape Palmas

in Liberia

Liberia

to Cape Lopez

Cape Lopez

(0°38′S 8°42′E)".

Islands in the Gulf of Guinea

The Gulf of Guinea contains a number of islands, the largest of which are in a southwest-northeast chain, forming part of the Cameroon line

Cameroon line

The Cameroon line is a chain of volcanoes.It includes islands in the Gulf of Guinea and mountains that extend along the border region of eastern Nigeria and western Cameroon, from Mount Cameroon on the Gulf of Guinea north and east towards Lake Chad....

of volcanoes.

Annobón

Annobón may refer to:* Annobón Province* Annobonese language* Annobon people...

, also known as Pagalu or Pigalu, is an island that is part of Equatorial Guinea

Equatorial Guinea

Bioko

Bioko is an island 32 km off the west coast of Africa, specifically Cameroon, in the Gulf of Guinea. It is the northernmost part of Equatorial Guinea with a population of 124,000 and an area of . It is volcanic with its highest peak the Pico Basile at .-Geography:Bioko has a total area of...

is an island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

off the west coast of Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

in the Gulf of Guinea that is part of Equatorial Guinea.

The Elobeys

Elobey Grande

Elobey Grande or Great Elobey is an island of Equatorial Guinea, lying at the mouth of the Mitémélé River. It is sparsely inhabited. Elobey Chico is a smaller island offshore, now uninhabited but once the colonial capital of the Rio Muni....

and Elobey Chico

Elobey Chico

Elobey Chico or Little Elobey is a small island offshore the coast of Equatorial Guinea, lying near the mouth of the Mitémélé River. The island is now uninhabited but was once de facto colonial capital of the Spanish territory of Rio Muni....

are two small islands belonging to Equatorial Guinea.

São Tomé and Príncipe

São Tomé and Príncipe, officially the Democratic Republic of São Tomé and Príncipe, is a Portuguese-speaking island nation in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two islands: São Tomé and Príncipe, located about apart and about , respectively, off...

(officially the Democratic Republic of São Tomé and Príncipe) is a Portuguese-speaking island nation

Island nation

An island country is a state whose primary territory consists of one or more islands or parts of islands. As of 2011, 47 of the 193 UN member states are island countries.-Politics:...

in the Gulf of Guinea that became independent from Portugal

Portugal

Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

in 1975. It is located off the western equatorial coast of Africa and consists of two islands, São Tomé

São Tomé Island

São Tomé Island, at , is the largest island of São Tomé and Príncipe and is home in 2009 to about 157,000 or 96% of the nation's population. This island and smaller nearby islets make up São Tomé Province, which is divided into six districts. The main island is located 2 km north of the...

and Príncipe

Príncipe

Príncipe is the northern and smaller of the two major islands of the country of São Tomé and Príncipe lying off the west coast of Africa. It has an area of 136 km² and a population of approximately 5,000. The island is a heavily eroded volcano over three million years old, surrounded by other...

. They are located about 140 kilometres (87 mi) apart and about 250 and 225 km (155.3 and 139.8 mi), respectively, off the northwestern coast of Gabon

Gabon

. Both islands are part of an extinct volcanic

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

mountain range

Mountain range

A mountain range is a single, large mass consisting of a succession of mountains or narrowly spaced mountain ridges, with or without peaks, closely related in position, direction, formation, and age; a component part of a mountain system or of a mountain chain...

. São Tomé, the sizeable southern island, is situated just north of the Equator