Volcanism and Evolution of the African Lithosphere

The Ethiopia Afar Geoscientific Lithospheric Experiment (EAGLE): Probing the transition from continental rifting to incipient seafloor spreading
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Published:June 01, 2011
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Ian D. Bastow, Derek Keir, Eve Daly, 2011. "The Ethiopia Afar Geoscientific Lithospheric Experiment (EAGLE): Probing the transition from continental rifting to incipient seafloor spreading", Volcanism and Evolution of the African Lithosphere, Luigi Beccaluva, Gianluca Bianchini, Marjorie Wilson
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The Miocene–Holocene East African Rift in Ethiopia is unique worldwide because it subaerially exposes the transition between continental rifting and seafloor spreading within a young continental flood basalt province. As such, it is an ideal study locale for continental breakup processes and hotspot tectonism. Here, we review the results of a recent multidisciplinary, multi-institutional effort to understand geological processes in the region: the Ethiopia Afar Geoscientific Lithospheric Experiment (EAGLE). In 2001–2003, dense broadband seismological networks probed the structure of the upper mantle, while controlled-source wide-angle profiles illuminated both along-axis and across-rift crustal structure of the Main Ethiopian Rift. These seismic...
- Africa
- anisotropy
- basalts
- body waves
- Bouguer anomalies
- broad-band spectra
- Cenozoic
- crust
- East Africa
- East African Rift
- elastic waves
- Ethiopia
- Ethiopian Rift
- flood basalts
- geophysical methods
- geophysical surveys
- gravity anomalies
- gravity methods
- guided waves
- Holocene
- hot spots
- igneous rocks
- kinematics
- lithosphere
- magnetotelluric methods
- Miocene
- Neogene
- P-waves
- partial melting
- plate tectonics
- processes
- propagation
- Quaternary
- receiver functions
- rifting
- S-waves
- sea-floor spreading
- seismic waves
- surface waves
- surveys
- Tertiary
- three-dimensional models
- tomography
- uplifts
- variations
- velocity
- volcanic rocks
- Main Ethiopian Rift
- Ethiopian Plateau
- EAGLE Project
- Ethiopia Afar Geoscientific Lithospheric Experiment