e/West African craton

Information
has gloss	eng: The West African craton is one of the four large masses, or cratons, of the Precambrian basement rock of Africa that make up the African Plate, the others being the Kalahari craton, Congo craton and Sahara craton. These land masses came together in the late Precambrian and early Palaeozoic eras to form the African continent. At one time, volcanic action around the rim of the craton may have contributed to a major global warming event.
lexicalization	eng: West African Craton
instance of	c/Cratons