The University of Western Australia and CSIRO Exploration and Mining, School of Earth and Geographical Sciences 35 Stirling Avenue, Crawley, WA 6009 Australia ; Johannes Gutenberg-University, Department of Geosciences Becherweg 21, Mainz, RP 55099 Germany
University of Minnesota, Deptartment of Geology and Geophysics and Minnesota Supercomputing Institute, Minneapolis, MN 55455-0 United States