Refining Age Models of Columbia River Basalt Emplacement and the Miocene Climate Optimum with High-Precision Geochronology

Jennifer Kasbohm1, Blair Schoene2, Darren Mark3, Joshua Murray4, Stephen Paul Reidel5 and Pincelli M Hull1, (1)Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States, (2)Princeton University, Department of Geosciences, Princeton, United States, (3)ERC Argon Isotope Facility, Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom, (4)Massachusetts Institute of Technology, Cambridge, MA, United States, (5)Washington State University, Benton City, WA, United States