Institute of Geography and Earth Sciences, University of Wales, Aberystwyth, Llandinan Building, Penglais Campus, Aberystwyth, Ceredigion, SY23 3DB, United Kingdom ; Environmental Change Research Centre, Department of Geography, University College London, Pearson Building, Gower Street, London, WC1E 6BT, United Kingdom
Environmental Change Research Centre, Department of Geography, University College London, Pearson Building, Gower Street, London, WC1E 6BT, United Kingdom
NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom ; School of Geography, University of Nottingham, Nottingham, NG7 2RD, United Kingdom