Captura de pantalla 2017-07-27 a las 11.39.13

Fig. 1 Sketch map of the central portion of the Cameroon Volcanic Line in West Equatorial Africa (see inset). 40Ar/39Ar ages of the onset of the silicic volcanism in the continental sector, including K/Ar age of Mt. Manengouba silicic volcanics (Dunlop 1983), and those of the onset of the basic volcanism in the oceanic sector (K/Ar and 40Ar/39Ar dates; Fitton and Dunlop 1985; Lee et al. 1994a) are shown. WAC, CC, and KC in the inset are the West African, Congo and Kalahari cratons, respectively