1. Basins Research Group (BRG), Department of Earth Sciences and Engineering, Imperial College, London SW7 2AZ, UK
2. Department of Earth Sciences, Universiteit Utrecht, P.O. Box 80115, 3508 TC Utrecht, Netherlands
3. PGS, 4 The Heights, Brooklands, Weybridge, Surre, KT13 0NY, UK
4. School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK