1. Laboratory of Experimental Tectonics Department of Sciences, Roma Tre University Rome Italy
2. Department of Earth Sciences Durham University Durham UK
3. Laboratoire de Géologie de Lyon Université de Lyon, École Normale Supérieure de Lyon Lyon France
4. Department of Geological Sciences, Jackson School of Geosciences The University of Texas at Austin Austin TX USA
5. Institute for Geophysics, Jackson School of Geosciences The University of Texas at Austin Austin TX USA