1. The Institute for Geoscience Research (TIGeR), Department of Applied Geology, Curtin University, Perth, WA 6845, Australia
2. NASA Astrobiology Institute, Department of Geoscience, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
3. Department of Earth and Environmental Sciences, University of St Andrews, St Andrews KY16 9AL, UK
4. Department of Geoscience, University of Derby, Derby DE22 1GB, UK
5. Centre for Microscopy, Characterisation and Analysis, University of Western Australia, Perth, WA 6009, Australia
6. Department of Earth Sciences, University of Oxford, Oxford OX1 3AN, UK
7. Department of Earth Sciences, Stellenbosch University, Matieland, 7602 Stellenbosch, South Africa
8. GeoHistory Facility, John de Laeter Centre, Department of Applied Geology, Curtin University, Perth, WA 6102, Australia