1. Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada
2. Institut für Geo- und Umweltnaturwissenschaften, Albert-Ludwigs-Universität, Mineralogie-Geochemie, 79104 Freiburg, Germany
3. Department of Geomicrobiology, Center for Applied Geosciences, University of Tübingen, 72074 Tübingen, Germany
4. Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa 50011, USA
5. Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong, China
6. Department of Microbiology and Immunology and Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
7. Department of Geology and Geophysics, Yale University, New Haven, Connecticut 06511, USA
8. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
9. European Institute for Marine Studies, CNRS-UMR6538 Laboratoire Domaines Océaniques, Technopôle Brest-Iroise, 29280 Plouzané, France