Institution: | (1) Institute for Mineralogy and Petrography, ETH Zurich, Sonneggstrasse 5, 8092 Zurich, Switzerland;(2) Geological Institute, ETH Zurich, Sonneggstrasse 5, 8092 Zurich, Switzerland;(3) Present address: Schweizerische Geotechnische Kommission, ETH-Zentrum, 8092 Zurich, Switzerland |