1. Department of Physics New Mexico State University Las Cruces NM USA
2. Physical Sciences James Cook University Douglas QLD Australia
3. Laboratoire de Geologie de Lyon: Terre, Planaštes, Environnement Universite de Lyon Universite Lyon 1 and Ecole Normale Superieure de Lyon UMR CNRS 5276 Villeurbanne France
4. Research School of Earth Sciences Australian National University Canberra ACT Australia
5. Department of Geology University of Maryland College Park MD USA