1. Bayerisches Geoinstitut BGI, University of Bayreuth, 95440 Bayreuth, Germany
2. Department of Earth Sciences, University of Oxford, Oxford OX1 3AN, United Kingdom
3. University of Utah, 115 So. 1460 E., Salt Lake City, Utah UT84112-0111, USA
4. German Research Center for Geosciences GFZ, 14473 Potsdam, Germany
5. Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
6. Photon Sciences, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany