Svetlana Radionovskaya¹, James Smith², Julia Wellner³, Iolanthe Ladbrook², Asmara Lehrmann³, Rebecca L Totten⁴, Elaine Mawbey², Mervyn Greaves¹, Claus-Dieter Hillenbrand² and THOR Team, (1)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (2)British Antarctic Survey, Cambridge, United Kingdom, (3)University of Houston, Earth and Atmospheric Sciences, Houston, United States, (4)University of Alabama, Geological Sciences, Tuscaloosa, AL, United States