1. Department of Earth and Environmental Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
2. Faculty of Geology, Geophysics and Environment Protection, AGH–University of Science and Technology, 30-059 Kraków, Poland, and Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755, USA
3. Faculty of Geology, Geophysics and Environment Protection, AGH–University of Science and Technology, 30-059 Kraków, Poland, and Department of Earth Sciences, Uppsala University, 752 36 Uppsala, Sweden
4. Faculty of Geology, Geophysics and Environment Protection, AGH–University of Science and Technology, 30-059 Kraków, Poland