Institution: | 1. Natural History Museum, Burgring 7, A‐1010 Vienna, Austria, and Department of Lithospheric Research, University of Vienna, Althanstrasse 14, A‐1090 Vienna, Austria;2. Department of Geology and Geological Engineering, Colorado School of Mines, Golden, CO 80401, USA;3. Emeritus, U.S. Geological Survey, Federal Center, Denver, CO 80225, USA |