Rates of mantle cooling and exhumation during rifting constrained by REE‐in‐pyroxene speedometry

Andrew Smye1, Spencer Seman1, Michael Hudak1,2 and Katherine L Crispin3, (1)Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, (2)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (3)Pennsylvania State University Main Campus, Materials Characterization Laboratory, University Park, PA, United States