1. Basin Dynamics Research Group, School of Geography, Geology and the Environment, Keele University, Keele, Staffordshire, ST5 5BG, UK
2. Department of Earth Sciences, SE Asia Research Group, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
3. British Geological Survey, The Lyell Centre, Research Avenue South, Edinburgh EH14 4AP, UK