1. School of Geographical and Earth Sciences, University of Glasgow, Gregory Building, Lilybank Gardens, Glasgow, UK.
2. Scottish Universities Environmental Research Centre, East Kilbride, UK.
3. Department of Earth and Environmental Science, University of St Andrews, St Andrews, UK.
4. School of Earth and Environment, Faculty of Environment, University of Leeds, Leeds, UK.
5. Geology and Petroleum Geology, School of Geosciences, University of Aberdeen, Aberdeen, UK.