Titlebook: Geology of Afar (East Africa); Jacques Varet Book 2018 Springer International Publishing AG 2018 Afar Region.Afar Triangle.Cradle of Human

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Geophysical Frame: Mantle Plume(s), Triple Points, Rifting Processesh situations are commonly considered as resulting from the presence of a hot spot, or mantle plume, that generated the 120° angle continental break-up and consequent rifting. Contrasting with this centrifuge concept for the development of the rift systems in such environments, another approach empha

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Pre-quaternary Geological Frameop along the Afar margins and in the plateaus escarpments. The study of these formations is of high interest as they allow to understand how pre-rift structures played a role in the rift process, as pre-existing lines of weakness appear to have determined the fracturation process of the continental

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First Stage of Oceanisation of the Afar Floor: The Stratoid Series (4–1 Million Years Ago)eri et al. (., .). It is made of flat lying piles of flows of fissural origin, with no identified emission centres, except for silicic, frequently products found in the uppermost part of the series. Age determinations obtained for this unit are ranging in ages from 5.3 to 0.56 million years. The pet

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Vulnerary

极为愤怒

Central Silicic Volcanoes of the Afar Marginsd along the margins of the depression. Their location and nature are clearly linked with the pre-rift surrounding discontinuities—on the western side the Ma’alalta massif and on the eastern side the Biddu range including the Nabro volcano. Both sit on the deeply faulted pre-Mesozoic sequence. Differ

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resistant

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Original