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Jos Plateau
The Jos Plateau is a plateau located near the centre of Nigeria. It covers 8600 km² and is bounded by 300-600 meter escarpments around much of its circumference. With an average altitude of 1280 metres it is the largest area over 1000 metres in Nigeria, with a high point of 1829 metres in the Shere Hills. The plateau has given its name to the State, Plateau State in which it is found and is itself named for the state's capital, Jos. == Geology == The Jos Plateau is dominated by three rock types. The Older Granites date to the late Cambrian and Orduvician. The Younger Granites are emplacements dating to the Jurassic, and forming part of a series that includes the Aïr Massif in the central Sahara. There are also many volcanoes and sheets of basalt extruded since the Pliocene (Morgan 1983). The Younger Granites contain tin which was mined since the beginning of the 20th century, during and after the colonial period. Important rivers are Kaduna, Gongola, Hadejia and Yobe, which have their source in this place.
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