1. Department of Geosciences University of Calgary Calgary AB Canada
2. Lamont Doherty Earth Observatory Columbia University Palisades NY USA
3. Institute of Tectonics and Geodynamics RWTH Aachen University Aachen Germany
4. Department of Earth & Space Sciences University of California Los Angeles CA USA
5. Géosciences Montpellier Université de Montpellier CNRS Montpellier France