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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Validation of gravity data from the geopotential field model for subsurface investigation of the Cameroon Volcanic Line (Western Africa)

Fig. 2

Geological sketch map of the study area. FSZ Foumban shear Zone, SWCSZ South-Western Cameroon Shear zone, NP Neoproterozoic, Ar Archean, PP Paleoproterozoic, 1 fault, 2 thrust, 3 Sinistral trike slip, 4 Paleo-Neogene sand, 5 cenozoic sandstone and conglomerate, 6 upper cretaceous sandstone, 7 lower cretaceous sandstone, 8 cenozoic to actual volcanism, 9 garnetiferous gneiss, 10 lower gneiss, 11 schist from Yaounde Group, 12 gneiss and micaschist from Yaounde Group, 13 Quartzite, 14 Syn to late tectonic granitoid, 15 Pre to syn tectonic granitoid, 16 greenstone belt. Granitoid Complex of Nyong Group (modified from Koch 1953; Champetier de Ribes and Aubague 1956; Weecksteen 1957; Champetier de Ribes and Reyre 1959; Dumort 1968; Peronne 1969; Nsifa et al. 2013). The deadly maar lakes are highlighted in blue and Mount Cameroon in red

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