1. Fault Analysis Group, School of Earth Sciences, University College Dublin, Belfield, Dublin 4, Ireland
2. Department of Earth Sciences, University of Durham, South Road, Durham DH1 3LE, UK
3. Basins Research Group, Imperial College, Prince Consort Road, London SW7 2BP, UK
4. Badley Geoscience Ltd, Hundleby, Spilsby, Lincolnshire PE23 5NB, UK