What is Dahomey basin?
The Dahomey Basin is an amalgamation of inland/coastal/offshore basin that expanses from southeastern Ghana through Togo and the. Republic of Benin to southwestern Nigeria. It is separated from the Niger Delta by a subsurface basement high referred to as the Okitipupa Ridge.
How was the Niger delta formed?
The Niger Delta Basin was formed by a failed rift junction during the separation of the South American plate and the African plate, as the South Atlantic began to open. Also at this time syn-rift sands and then shales were deposited in the late Cretaceous. This indicates that the shoreline regressed during this time.
Where is Benue trough in Nigeria?
The Benue Trough is a major geological structure underlying a large part of Nigeria and extending about 1,000 km northeast from the Bight of Benin to Lake Chad. It is part of the broader West and Central African Rift System.
Where is Dahomey basin located?
The Dahomey Basin is a combination of inland/coastal/offshore basin that stretches from southeastern Ghana through Togo and the Republic of Benin to southwestern Nigeria. It is separated from the Niger Delta by a subsurface basement high referred to as the Okitipupa Ridge.
What are the sedimentary basins in Nigeria?
Nigeria is underlain by seven major sedimenta- ry basins, viz: (from the oldest), the Calabar Flank, the Benue Trough, the Chad Basin, SE lullem- menden (Sokoto) Basin, the Dahomey Basin, and the Niger Delta Basin. Sedimentary succes- sions in these basins are of middle Mesozoic to Recent age.
Why is the Niger Delta important?
The Niger River and its Inner Delta are vital for agriculture, livestock, fisheries, transport, energy, tourism, and water filtration, as well as as a habitat for a range of fish and other aquatic animals, including a variety of protected species.
What is found in Niger Delta?
The Niger delta is a vast low-lying region through which the waters of the Niger River drain into the Gulf of Guinea. Characteristic landforms in this region include oxbow lakes, river meander belts (see meander), and prominent levees. Large freshwater swamps give way to brackish mangrove…
What is the stratigraphy of Benue Trough?
The stratigraphic succession in the Benue Trough comprises essentially thick continental and deltaic sandstones, paralic sandstones, shales, coal measures, and shallow epicontinental shales and limestone. The age of the sedimentary rocks in the Benue Trough ranges from Albian to Palaeogene.
Where is Bida Basin located?
The Bida Basin is a NW-SE trending intracratonic basin that extends northwestwards from the confluence of the Niger and Benue Rivers at the Lokoja/Dekina axis to the basement complex that separates it from the basal continental early Cretaceous to late Jurassic Illo and Gundumi Formations (Kogbe, 1989) of the Sokoto …
How many basins do we have in Nigeria?
In Nigeria there are eight main river basins, i.e. the Benue, Delta and Cross Rivers, the Imo-Anambra, Hadejia-Chad, Sokoto-Rima, Niger, Owena and Ogun, and Osun Basins.
How many sedimentary basins does Nigeria have?
Is Niger Delta part of Biafra?
The 2016 Niger Delta conflict is an ongoing conflict around the Niger Delta region of Nigeria in a bid for the secession of the region, which was a part of the breakaway state of Biafra.
Where are the Dahomey and Benin basins located?
The Benin (Dahomey) Basin is one of the sedimentary basins located in the Gulf of Guinea oil province and straddles through four major countries, namely, Ghana, the Republic of Benin, The Federal Republic of Nigeria and the Republic of Togo ( Figure 1 ).
How did the Dahomey basin form during the Cretaceous?
The Dahomey Basin is part of the strings of basins formed during the opening of the Gulf of Guinea of West Africa in the Cretaceous. The Dahomey Basin was formed from a combination of basement subsidence and block faulting. The initial subsidence resulted in the deposition of thick arenaceous sediments during the Early Cretaceous.
Where is the Eastern Dahomey embayment in Nigeria?
The Cretaceous stratigraphy of the eastern Dahomey Embayment based on boreholes and outcrops in onshore southwestern Nigeria has been studied.