Volcanism and Evolution of the African Lithosphere

The upper-mantle low-velocity anomaly beneath Ethiopia, Kenya, and Tanzania: Constraints on the origin of the African superswell in eastern Africa and plate versus plume models of mantle dynamics
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Published:June 01, 2011
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CiteCitation
Andrew A. Nyblade, 2011. "The upper-mantle low-velocity anomaly beneath Ethiopia, Kenya, and Tanzania: Constraints on the origin of the African superswell in eastern Africa and plate versus plume models of mantle dynamics", Volcanism and Evolution of the African Lithosphere, Luigi Beccaluva, Gianluca Bianchini, Marjorie Wilson
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To further advance our understanding of the way in which a portion of the African superswell in eastern Africa formed, and also to draw attention to the importance of eastern Africa for the plume versus plate debate about mantle dynamics, upper-mantle structure beneath eastern Africa is reviewed by synthesizing published results from three types of analyses applied to broadband seismic data recorded in Tanzania, Kenya, and Ethiopia. (1) Joint inversions of receiver functions and surface wave dispersion measurements show that the lithospheric mantle of the Ethiopian Plateau has been significantly perturbed, much more so than the lithospheric mantle of the...
- Africa
- body waves
- broad-band spectra
- dynamics
- East Africa
- elastic waves
- Ethiopia
- geodynamics
- guided waves
- Kenya
- lithosphere
- low-velocity zones
- mantle
- mantle plumes
- measurement
- models
- Mozambique Belt
- plate tectonics
- receiver functions
- rifting
- seismic waves
- superswells
- surface waves
- Tanzania
- temperature
- thermal anomalies
- thermal properties
- tomography
- upper mantle
- velocity structure
- volcanism
- wave dispersion
- 410-km discontinuity
- Ethiopian Plateau