1. Institut für Geowissenschaften; Technische Universität Bergakademie Freiberg; Freiberg; Germany
2. Institut für Geowissenschaften; Universität Tübingen; Tübingen; Germany
3. Geological and Environmental Sciences; Stanford University; Stanford; California; USA
4. Geological Institute of the Tajik Academy of Science; Dushanbe; Tajikistan
5. Department of Geological Sciences; University of Washington; Seattle; Washington; USA
6. U.S. Geological Survey; Menlo Park; California; USA