Edward W Llewellin¹, Jason P Coumans¹, Madeleine Humphreys¹, Fabian B Wadsworth², Katherine J Dobson³, Anja Allabar⁴, Richard A. Brooker⁵, Simon Mathias¹, James E Gardner⁶ and Julia Coggins¹, (1)University of Durham, Durham, United Kingdom, (2)Durham University, Durham, United Kingdom, (3)University of Durham, Earth Sciences, Durham, United Kingdom, (4)University Tuebingen, Tuebingen, Germany, (5)University of Bristol, Bristol, United Kingdom, (6)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States