Early Terrestrial Mantle Differentiation Recorded in Paleoarchean Komatiites

Igor S Puchtel1, Janne Blichert-Toft2, Mathieu Touboul3, Mary F Horan4 and Richard J Walker1, (1)University of Maryland College Park, Department of Geology, College Park, MD, United States, (2)Ecole Normale Supérieure de Lyon, CNRS, and Université de Lyon, Lyon, France, (3)University of Maryland College Park, Geology, College Park, MD, United States, (4)Carnegie Institution for Science Washington, Washington, DC, United States