1. School of Earth Sciences, University of Melbourne, L4 McCoy Building, Parkville, Victoria, 3010, Australia (Corresponding author), e-mail: g.beardsmore@unimelb.edu.au, https://orcid.org/0000-0003-4812-1146
2. Hot Dry Rocks Pty Ltd, L1 253–283 Elgin St., Carlton, Victoria, 3053, Australia
3. School of Earth Sciences, University of Melbourne, L4 McCoy Building, Parkville, Victoria, 3010, Australia, https://orcid.org/0000-0002-9757-745X