1. 1UCD School of Earth Sciences, University College Dublin, Ireland, D04 V1W8
2. 2Current address: Geostudi, Carrer Ter, 16, 08670 Navàs, Barcelona, Spain
3. 3CASP, West Building, Madingley Rise, Madingley Road, Cambridge, CB3 0UD
4. 4Equinor ASA, Sandsliveien 90, 5020 Bergen, Norway