1. Department of Earth Sciences, University of Utrecht, Utrecht, The Netherlands
2. SE Asia Research Group, Department of Earth Sciences, Royal Holloway University of London, Egham, UK
3. Middle East Technical University, Department of Geological Engineering, Ankara, Turkey
4. Palaeomagnetic Laboratory ‘Fort Hoofddijk’, Department of Earth Sciences, University of Utrecht, Utrecht, The Netherlands
5. Centre for Geodynamics, Geological Survey of Norway (NGU), Trondheim, Norway