Titlebook: Geology and Mineral Resources of Nigeria; Nuhu George Obaje Book 2009 Springer-Verlag Berlin Heidelberg 2009 Crystalline rock.Geological e

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較早

Introductiona. There are thirty six (36) federating states alongside the Federal Capital Territory (FCT) that make up the Federal Republic of Nigeria (Fig. 1). A total of 774 local government councils are recognized in the Constitution of the Federal Republic of Nigeria. Since 1991, the Nigeran capital has been

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The Basement Complexplex forms a part of the Pan-African mobile belt and lies between the West African and Congo Cratons (Fig. 1.2) and south of the Tuareg Shield (Black, 1980). It is intruded by the Mesozoic calc-alkaline ring complexes (Younger Granites) of the Jos Plateau and is unconformably overlain by Cretaceous

Retrieval

The Younger Granites 200?km wide and 1,600?km long extending from northern Niger to south central Nigeria. Rb/Sr whole rock dating indicates that the oldest complex of Adrar Bous in the north of Niger is Ordovician in age, with progressively younger ages southwards. The most southerly ring complex of Afu is Late Jurass

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angiography

強(qiáng)化

The Bornu Basin (Nigerian Sector of the Chad Basin)try. It represents about one-tenth of the total area extent of the Chad Basin, which is a regional large structural depression common to five countries, namely, Cameroon, Central African Republic, Niger, Chad, and Nigeria. The Bornu Basin falls between latitudes 11°N and 14°N and longitudes 9°E and

畸形

The Sokoto Basin (Nigerian Sector of the Iullemmeden Basin)average elevation varying from 250 to 400 m above sea-level. This plain is occasionally interrupted by low mesas. A low escarpment, known as the “Dange Scarp” is the most prominent feature in the basin and it is closely related to the geology.

群居動(dòng)物

The Mid-Niger (Bida) Basinn Niger State of Nigeria to areas slightly beyond Lokoja in the south. It is delimited in the northeast and southwest by the basement complex while it merges with Anambra and Sokoto basins in sedimentary fill comprising post orogenic molasse facies and a few thin unfolded marine sediments (Adeleye,

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The Dahomey Basinto southwestern Nigeria. It is separated from the Niger Delta by a subsurface basement high referred to as the Okitipupa Ridge. Its offshore extent is poorly defined. Sediment deposition follows an east-west trend. In the Republic of Benin, the geology is fairly well known (Billman, 1976; De Klasz,