G
Gezahegn Yirgu
Researcher at Addis Ababa University
Publications - 84
Citations - 6221
Gezahegn Yirgu is an academic researcher from Addis Ababa University. The author has contributed to research in topics: Rift & Volcano. The author has an hindex of 35, co-authored 75 publications receiving 5428 citations.
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Journal ArticleDOI
Timing of the Ethiopian flood basalt event and implications for plume birth and global change
C. Hofmann,Vincent Courtillot,Gilbert Féraud,Pierre Rochette,Gezahegn Yirgu,E. Ketefo,Raphaël Pik +6 more
TL;DR: In this paper, geochronological (40Ar/39Ar) and magnetostratigraphic results for the Ethiopian traps, one of the last remaining flood basalts for which few such data were available, were presented.
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Magma-maintained rift segmentation at continental rupture in the 2005 Afar dyking episode
Tim J. Wright,Tim J. Wright,Cynthia Ebinger,Cynthia Ebinger,Juliet Biggs,Atalay Ayele,Gezahegn Yirgu,Derek Keir,Anna L Stork +8 more
TL;DR: A three-dimensional deformation field for the Dabbahu rifting episode derived from satellite radar data shows that the entire segment ruptured, making it the largest to have occurred on land in the era of satellite geodesy.
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Relationships between mafic and peralkaline silicic magmatism in continental rift settings: A petrological, geochemical and isotopic study of the Gedemsa volcano, Central Ethiopian rift
TL;DR: Petrological and geochemical data are reported for basalts and silicic peralkaline rocks from the Quaternary Gedemsa volcano, northern Ethiopian rift, with the aim of discussing the petrogenesis of peralkal magmas and the significance of the Daly Gap occurring at local and regional scales as mentioned in this paper.
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Evolution of the northern Main Ethiopian rift: birth of a triple junction
TL;DR: In this paper, the authors determined the timing and kinematics of rifting in the 3rd arm, the Main Ethiopian rift (MER), near its intersection with the southern Red Sea rift.
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Flood and shield basalts from Ethiopia: Magmas from the African superswell
Bruno Kieffer,Nicholas Arndt,Henriette Lapierre,Florence Bastien,Delphine Bosch,Arnaud Pêcher,Gezahegn Yirgu,Dereje Ayalew,Dominique Weis,Dougal A. Jerram,Francine Keller,Claudine Meugniot +11 more
TL;DR: The Ethiopian plateau is made up of several distinct volcanic centres of different ages and magmatic affinities as discussed by the authors, and the three main types of magma have very different major and trace element characteristics ranging from compositions low in incompatible elements in the tholeiites [e.g. 10 ppm La at 7 wt % MgO (=La7), La/εb = 4.2], moderate in the alkali basalts (La7 = 24, La/β = 9.2), and very high in the magnesian alkaline magmas (