1. UMR CNRS IC2MP 7285; University of Poitiers; Poitiers France
2. School of Earth and Ocean Sciences; Cardiff University; Cardiff UK
3. Department of Earth and Atmospheric Sciences; University of Alberta; Edmonton Alberta Canada
4. Department of Geological Sciences; University of Saskatchewan; Saskatoon Saskatchewan Canada
5. Department Geosciences; UMR 6118; University of Rennes 1; Rennes France
6. UMR 8187 LOG CNRS; University of Lille, ULCO; Villeneuve d'Ascq France