1. Department of Earth & Atmospheric Sciences; University of Alberta; Edmonton; AB; Canada
2. UMR 6538 Domaines Océaniques; European Institute for Marine Studies; Technopôle Brest-Iroise; Plouzané; France
3. Marine Chemistry and Geochemistry Department; Woods Hole Oceanographic Institution; Woods Hole; MA; USA
4. Department of Earth Sciences; University of California; Riverside; CA; USA
5. Department of Earth and Planetary Sciences; McGill University; Montreal; QC; Canada
6. Microbial and Environmental Genomics Group; J. Craig Venter Institute; San Diego; CA; USA
7. Geomicrobiology Group; Center for Applied Geoscience; University of Tuebingen; Tuebingen; Germany