Download e-book for kindle: Volcanism and Evolution of the African Lithosphere by Luigi Beccaluva, Cathryn A. Manduca

By Luigi Beccaluva, Cathryn A. Manduca

ISBN-10: 0813724783

ISBN-13: 9780813724782

The distribution of volcanism within the African plate is the skin expression of quite a few tactics, lots of that are poorly understood, regarding interplay among the lithosphere and the underlying convective mantle. regardless of the adulthood of the plate tectonic paradigm, our wisdom of the methods all for the breakup of continents and the formation of latest ocean basins continues to be restricted. The African Rift approach offers a distinct average laboratory to review the transition from continental breakup to seafloor spreading. hence, you will need to discover the similarities one of the volcanic provinces of the Saharan region, Cameroon volcanic line, Angola and Namibia, and the East African Rift procedure. the purpose of this quantity is to assemble contemporary and up to date contributions on African volcanism (and linked mantle xenoliths), supplying multidisciplinary contexts that come with volcanology, geochemistry, petrology, geophysics, and structural geology, for a greater knowing of the geological evolution of the African lithosphere

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143–163. , 2005, Numerical modeling of Quaternary deformation and post-rifting displacement in the Asal-Ghoubbet rift (Djibouti, Africa): Earth and Planetary Science Letters, v. 239, p. 028. , 1998, New age constraints on the timing of volcanism and tectonism in the northern Main Ethiopian Rift–southern Afar transition zone (Ethiopia): Journal of Volcanology and Geothermal Research, v. 80, p. 1016/S0377 -0273(97)00035-8. , 1994, Northwest to north-northwest extension direction in the Ethiopian Rift deduced from the orientation of extension structures and fault-slip analysis: Geological Society of America Bulletin, v.

Y. , 2004). The Main Ethiopian Rift progressively widens northward. This widening is associated with a decrease in the length of its rift segments, of the separation of magmatic centers, and of the effective elastic thickness of the crust (Fig. 3; Ebinger and Hayward, 1996; Hayward and Ebinger, 1996). , 2006). During the Pliocene and Quaternary, the Main Ethiopian Rift progressively deepened, evolving through a sequence of interacting half-graben segments marking the boundary between the Nubia and Somalia Plates (Hayward and Ebinger, 1996).

113, p. 1007/BF00320827. , 1988, Crustal contributions to arc magmatism in the Andes of central Chile: Contributions to Mineralogy and Petrology, v. 98, p. 1007/BF00372365. , 1997, Timing of the Ethiopian flood basalt event and implications for plume birth and global change: Nature, v. 389, p. 1038/39853. , 2004, High-pressure melting experiments on garnet clinopyroxenite and the alkalic to tholeiitic transition in ocean-island basalts: Earth and Planetary Science Letters, v. 223, p. 029. , 2003, High-pressure partial melting of garnet pyroxenite: Possible mafic lithologies in the source of ocean island basalts: Earth and Planetary Science Letters, v.

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Volcanism and Evolution of the African Lithosphere by Luigi Beccaluva, Cathryn A. Manduca

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