Seismic evidence for Seismic evidence for present-day plume present-day plume upwelling at the upwelling at the core-mantle boundary core-mantle boundary Sebastian Rost Edward J. Garnero Sebastian Rost Edward J. Garnero Quentin Williams Quentin Williams Michael Manga Michael Manga University of California University of California Santa Cruz Santa Cruz University of California University of California Berkeley Berkeley
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Seismic evidence for present-day plume upwelling at the core-mantle boundary
Seismic evidence for present-day plume upwelling at the core-mantle boundary. Sebastian Rost Edward J. Garnero. Quentin Williams. University of California Santa Cruz. Michael Manga. University of California Berkeley. ULVZ structure and detection. 0.5 to 10’s km thick - PowerPoint PPT Presentation
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Seismic evidence for present-Seismic evidence for present-day plume upwelling at the day plume upwelling at the
core-mantle boundarycore-mantle boundary
Sebastian Rost Edward J. GarneroSebastian Rost Edward J. Garnero
Quentin WilliamsQuentin Williams
Michael MangaMichael Manga
University of CaliforniaUniversity of CaliforniaSanta CruzSanta Cruz
University of CaliforniaUniversity of CaliforniaBerkeleyBerkeley
ULVZ structure and detection
0.5 to 10’s km thick0.5 to 10’s km thick 10 to 30 % velocity decrease10 to 30 % velocity decrease density ?density ?
Thorne and Garnero, 2004
CMB are probed < 50 %CMB are probed < 50 % ULVZ evidence < 10%ULVZ evidence < 10%