Non-linear temperature dependence of the post-garnet transition boundary in Mg3Al2Si3O12 revealed by accurate equilibrium experiment in a multi-anvil press with in-situ X-ray diffraction

Takayuki Ishii1, Daniel J Frost2, Artem Chanyshev2, Keisuke Nishida3, Rintaro Ban4, Xiaowan Su5, Yuji Higo6, Yoshinori Tange7 and Tomoo Katsura2, (1)Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany, (2)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (3)University of Bayreuth, Bayreuth, Germany, (4)Tohoku University, Sendai, Japan, (5)Center for High Pressure Science and Technology Advanced Research, Beijing, China, (6)Japan Synchrotron Radiation Institute, Hyogo, Japan, (7)Ehime University, Ehime, Japan