1. Physics of Geological Processes; University of Oslo; P.O. Box 1048 Blindern 0316 Oslo Norway
2. Department of Geoscience; Aarhus University; Aarhus Denmark
3. Volcanic Basin Petroleum Research; Oslo Innovation Park; Oslo Norway
4. Department of Earth Sciences; Royal Holloway University of London; Egham UK
5. Hamilton Building; Imperial College; Ascot UK