1. Department of Geology Aristotle University of Thessaloniki Thessaloniki Greece
2. School of Environmental and Life Sciences University of Newcastle Callaghan New South Wales Australia
3. Instituto de Geociências Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
4. The Institute for Geoscience Research (TIGeR), Department of Applied Geology Curtin University Perth Western Australia Australia