Sean P S Gulick¹, Ulrich Peter Riller², Auriol Rae³, Joanna V Morgan⁴, Michael Poelchau³, Naoma McCall¹, Gail Lynn Christeson⁵ and Gareth S Collins⁶, (1)The University of Texas at Austin, Institute for Geophysics & Department of Geological Sciences, Austin, TX, United States, (2)Geologisch-Pal. Institut, Hamburg, Germany, (3)University of Freiburg, Freiberg, Germany, (4)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (5)UTIG, Austin, TX, United States, (6)Imperial College London, London, United Kingdom