Affiliation: | 1. Charles University, Faculty of Sciences, Albertov 6, Praha 2, Czech Republic;2. Czech Geological Survey, Klárov 3/131, Praha 1, Czech Republic;3. Southern Methodist University, Huffington Department of Earth Sciences, 3225 Daniel Ave., Dallas, TX, USA;4. Institute of Rocks Structure and Mechanics, Academy of Sciences of the Czech Republic, Czech Republic |