A5064857799- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- Geological formations and processes
- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Geological and Geophysical Studies Worldwide
- Karst Systems and Hydrogeology
- Geophysical and Geoelectrical Methods
- Hydropower, Displacement, Environmental Impact
- Paleontology and Stratigraphy of Fossils
- Geological and Geophysical Studies
- Transboundary Water Resource Management
- Geomagnetism and Paleomagnetism Studies
- earthquake and tectonic studies
- Landslides and related hazards
- Clay minerals and soil interactions
- Methane Hydrates and Related Phenomena
University of Florence
2019-2024
Institut des Sciences de la Terre
2024
Université d'Orléans
2024
University of Pisa
2020
Abstract Continental rift systems form by propagation of isolated segments that interact, and eventually evolve into continuous zones deformation. This process impacts many aspects rifting including morphology at breakup, eventual ocean-ridge segmentation. Yet, segment growth interaction remain enigmatic. Here we present geological data from the poorly documented Ririba (South Ethiopia) reveals how two major sectors East African rift, Kenyan Ethiopian rifts, interact. We show formed...
Magmatism in extensional tectonic settings, such as the East African Rift System, is mainly modulated by interaction of plume upwelling and plate dynamics, resulting complex processes associated to rifting (e.g., rift migration, focusing) generating a large compositional variability erupted products, even over small distances short time periods. The Ririba rift, formed from southward propagation Main Ethiopian Rift, well exemplifies these complexities providing unique opportunity investigate...
The Late Pleistocene-Holocene Dilo-Dukana and Mega volcanic fields (Ririba rift, South Ethiopia) formed through monogenetic eruptions of limited volumes alkaline basalts containing abundant mantle crustal xenoliths. This activity postdated the emplacement voluminous Pliocene subalkaline basaltic lavas related to main rifting phase. Several NE-SW aligned vents, that abruptly cut rift-related structures, form two fields, indicating occurrence magmatism disconnected from rift (Corti et al.,...
The Plio-Pleistocene volcanism of the Main Ethiopian Rift (Ethiopia) is characterized by a bimodal distribution with abundant mafic and felsic compositions rare intermediate magmas, feature commonly known as Daly Gap. Quaternary activity large explosive eruptions associated caldera collapses that define regional paroxysm silicic basaltic volcanism. genesis evolved their relationship basalts still represents matter debate, interpretations ranging from pure fractional crystallization to more...
The East African Rift is one of Earth's largest continental landforms. It recognized as a critical region for understanding hominin evolution yet has also undergone important transformation through ongoing tectonic and volcanic activity. An the interplay rift kinematics, magma genesis geomorphic requires firm geochronology but this been lacking much Rift. Here we present detailed stratigraphic observations high-precision 40Ar/39Ar ages major units in Central Main Ethiopian Our new data...
Abstract Bimodal magmatism is characteristic of the geodynamic evolution Main Ethiopian Rift (MER), which a reference area for study processes leading to continental break-up before seafloor spreading. There are abundant emissions basalts and rhyolites, in possible parent-daugther relationships. However, P-T-H2O conditions production storage basaltic end member remain unclear. Crystallization experiments have been conducted on an alkali basalt from MER define its pre-eruptive shed light...
<p>The Ririba rift represents the southern termination of Main Ethiopian Rift and formed from southward propagation this latter during, or shortly after, emplacement subalkaline basalts that produced a widespread basaltic lava basement, at ~3.7 Ma.</p><p>The activity was short-lived ceased between 2.8 2.3 Ma, when deformation migrated westward into an oblique, throughgoing zone directly connecting Kenyan rifts. Rifting followed by eruption limited...
<p>The volcano-tectonic evolution of the Main Ethiopian Rift (MER) is punctuated with periods intense silicic volcanism, characterized by large explosive caldera-forming eruptions and production several ignimbrite deposits. These volcanic paroxysms require volume evolved magma accumulated in shallow chambers into continental crust; however, relations between magmatism tectonics during rifting, influence distribution timing regional on ascent its stalling magmatic reservoirs...