Seismic observations of ponding plumes beneath the mantle transition zone

Lauren Waszek, New Mexico State University Main Campus, Las Cruces, NM, United States, Benoit Tauzin, Laboratoire de Sciences de la Terre, Université de Lyon I, CNRS and Ecole Normale Supérieure de Lyon, UMR5570, Villeurbanne, France, Nicholas C Schmerr, University of Maryland College Park, Geology, College Park, MD, United States, Maxim Ballmer, ETH Zürich, Department of Earth Sciences, Zürich, Switzerland and Juan Carlos Afonso, Macquarie University, Sydney, NSW, Australia