Gezahegn Yirgu

TL;DR: In this paper, a 40 Ar/39 Ar thermochronological study has been carried out on the Panafrican basement in Ethiopia and Yemen using the furnace step heating procedure.

TL;DR: In this article, a petrographic and geochemical study of pyroxenite xenoliths erupted on the western Ethiopian plateau from along the Yerer Tullul Wellel Volcano-Tectonic lineament (YTVL).

TL;DR: It is shown that peralkaline rhyolite pumice cones are the product of moderate to intense eruptions, meaning that such eruptions can generate extensive tephra-fall and pyroclastic density currents.

TL;DR: In this paper, a combination of cosmogenic (36Cl and 3He) surface exposure dating of basaltic lava-flows, field observations, geological mapping and geochemistry was used to uncover the volcanic history of the Dabbahu/Manda Hararo rift segment in the Afar depression (Ethiopia).

TL;DR: It is shown that lavas, which erupted since ~200 ka along part of the on-land Red Sea rift system in Afar, Ethiopia, have a consistent age-progression from the rift axis outwards, indicating that axial dyke intrusion has been the primary mechanism of segment growth and that focused magmatic accretion and extension in the crust have remained stable here over this period.