1. Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland
2. UMR CNRS 6112 - LPG-BIAF, Université d'Angers, 49045 Angers Cedex, France
3. Department of Earth and Planetary Sciences, University of California Davis, Davis, CA 95616, USA
4. College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
5. Department of Geosciences, National Taiwan University, Taipei, Taiwan
6. Center for Advanced Surface Analysis, Institute of Earth Sciences, University of Lausanne, Switzerland