1. Paleomagnetic Laboratory “Fort Hoofddijk,” Department of Earth Sciences; Utrecht University; Utrecht Netherlands
2. Research School of Earth Sciences; The Australian National University; Canberra Australia
3. Department of Earth and Environmental Sciences; Ludwig-Maximilians University; Munich Germany
4. Istituto Nazionale di Geofisica e Vulcanologia; Rome Italy
5. Center for Advanced Marine Core Research; Kochi University; Nankoku Kochi Japan