Oxygen vacancy component (MgFeO2.5) produced by Fe3+ in bridgmanite and its implications for viscosity variation in the mid-mantle

Tomoo Katsura1,2, Hongzhan Fei1, Zhaodong Liu1 and Catherine A McCammon1, (1)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (2)Center for High Pressure Science & Technology Advanced Research, Beijing, China