1. Department of Earth Science University of Bergen Bergen Norway
2. Department of Earth Sciences Utrecht University Utrecht The Netherlands
3. Institute of Earth Sciences, Academia Sinica Taipei Taiwan
4. Institute of Geology and Geoinformation, Geological Survey of Japan, The National Institute of Advanced Industrial Science and Technology Ibaraki Japan
5. Géosciences Montpellier Université Montpellier Montpellier France
6. Lamont–Doherty Earth Observatory Columbia University Palisades NY USA