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The Niger Delta Basin is an extensional rift basin where rifting occurred from the Late Jurassic to the Late Cretaceous.Cretaceous fracture zones, expressed as trenches and ridges, control the tectonic framework of the delta and separate the margin into individual sub-basins, which form the boundary faults of the Cretaceous Benue-Abakaliki trough.
Geologic map of the Niger Delta Basin and the Benue trough, and the oil fields in the region. The Niger Delta Basin , also referred to as the Niger Delta province , is an extensional rift basin located in the Niger Delta and the Gulf of Guinea on the passive continental margin near the western coast of Nigeria [ 1 ] with suspected or proven ...
Sketch map of Benue Trough. The trough has its southern limit at the northern boundary of the Niger Delta, where it dips down and is overlaid with Tertiary and more recent sediments. It extends in a northeasterly direction to the Chad Basin, and is about 150 km wide. The trough is arbitrarily divided into lower, middle and upper regions, and ...
Western Niger Delta consists of the western section of coastal South-South Nigeria which includes Delta, and the southernmost parts of Edo, and Ondo States. The western (or Northern) Niger Delta is a heterogeneous society with several ethnic groups including the Urhobo , Isoko , Ijaw (or Izon) and Ukwuani , Itsekiri the Bini , Esan , Auchi ...
Shaded relief map of the Llano Estacado. Texas contains a wide variety of geologic settings. The state's stratigraphy has been largely influenced by marine transgressive-regressive cycles during the Phanerozoic, with a lesser but still significant contribution from late Cenozoic tectonic activity, as well as the remnants of a Paleozoic mountain range.
The oldest rocks in Niger, along the border with Burkina Faso and northern Ghana predate the 2.2 billion year old Proterozoic Birimian rocks common in much of West Africa. . The pre-Birimian crystalline basement rocks include gneiss and migmatite metamorphosed to amphibolite grade in the sequence of metamorphic fac
Major continental divides, showing drainage into the major oceans and seas of the world--Drainage basins of the principal oceans and seas of the world.Grey areas are endorheic basins that do not drain to the ocean.
The Niger Delta with the Forcados (middle left). The Forçados River (originally Forcados) [1] is a channel in the Niger Delta, in southern Nigeria. [2] It flows for approximately 198 kilometres (123 mi) and meets the sea at the Bight of Benin in Delta State. [3] It is an important channel for small ships.