Institution: | Laboratoire des Sciences de la Terre, Ecole Normale Supérieure de Lyon, CNRS UMR5570;, 46 allée d'Italie, F-69364 Lyon, Cedex 07, France. E-mail: Department of Geology and Geophysics, Yale University, PO Box 208109,;New Haven, CT 06520-8109, USA. E-mail: |