Interim results of seismic imaging and earthquake analyses of the Turkana Depression region, Kenya and Ethiopia by Prof. CYNTHIA EBINGER

Marshall-Heape Chair, Tulane University, New Orleans, LA New Orleans, Louisiana

Professional Preparation
Duke University, Durham, NC BS, Marine Geology
MIT/WHOI Joint Program in Oceanography PhD, Marine Geology & Geophysics
NASA Goddard Space Flight Center Nat. Acad. Sci. Postdoctoral Associate
University of Leeds, UK NATO Postdoctoral Fellow

2006-16: Professor, University of Rochester, Rochester, NY
1999-06: Reader, Professor, Royal Holloway, University of London
1991-98: Lecturer, University of Leeds, Leeds

Fellow, Geol Soc America and American Geophysical Union
Chair, American Geophysical Union College of Fellows
International Lithospheric Panel Advisory Board
East Africa Institute for Fundamental Research-ICTP Advisory Board (Kigali, Rwanda)

Talk abstract
We report the first results of the multi-stage, inter-disciplinary TRAILS project in the unusually wide Turkana depression of Kenya and S Ethiopia. The magma-rich Eastern rift, E. Africa formed near the eastern edge of the Archaean Tanzania craton in northeastern Tanzania, which has been affected by a deep-seated mantle upwelling, and provides an example of active rifting in a region with large lateral heterogeneities of lithospheric structure. Patterns of active faulting and magmatism in the East African rift indicate that lateral heterogeneities in crust and mantle structure influence the distribution of earthquakes, rift basins and volcanoes. Our results indicate that active faulting, magmatism, and lithospheric thinning occurs across a narrow part of the rift, and that the largest and most frequent earthquakes are concentrated at kinks or bends in the rift. Tomographic imaging indicates that the source of magma is located east of the rift, suggesting that the rift

Start Time: Jun 29, 2021 10:

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