Iron Speciation in Minerals and Melts at High Pressure: Implications for the Redox Evolution of the Early Mantle

Katherine Armstrong1, Daniel J Frost2, Catherine A McCammon3, David C Rubie3, Tiziana Boffa Ballaran2 and Nobuyoshi Miyajima4, (1)University of California Davis, Davis, CA, United States, (2)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (3)University of Bayreuth, Bayreuth, Germany, (4)Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany