1. Department of Earth and Ocean Sciences Tufts University Medford MA USA
2. Department of Earth and Environmental Sciences Columbia University New York NY USA
3. Instituto Andaluz de Ciencias de la Tierra CSIC‐UGR Granada Spain
4. Géosciences Montpellier CNRS Université de Montpellier Montpellier France
5. British Geological Survey Nottingham UK
6. Onyx Transition Houston TX USA
7. School of Earth and Environmental Sciences Cardiff University Cardiff UK