Earth's Oldest Rocks

Prof. van Kranendonk was born and trained in Canada, receiving his PhD in 1992 and then undertaking a post-doc position at the Geological Survey of Canada from 1992-1994. In 1994, he moved to Australia as an ARC post-doctoral fellow at the University of Newcastle, where he commenced research on the Pilbara. He then joined the Geological Survey of Western Australia in 1997, where he worked for 15 years until the start of 2012, when he accepted a position as Professor of Geology at the University of New South Wales, in Sydney, Australia, where he is the Director of the Australian Centre for Astrobiology. Prof. van Kranendonk is a leading world expert on the early Earth. His main interests are Archean tectonics and the geological setting of early life on Earth. He has appeared on numerous television and radio documentaries on early Earth, and has been involved in educational outreach programs for school children and the general public.

Professor Bennett is a geochemist at the Research School of Earth Sciences, Australian National University in Canberra, Australia. She received her PhD in 1989 from the University of California, Los Angeles, and then moved to Australia to begin a post-doctoral fellow position at RSES the same year. As part of the “First Billion Years project she began collaborative investigations of the oldest rocks in Western Australia and southwest Greenland. In 2000 she became the first tenured female faculty member and is currently Associate Director and Head of the Isotope Geochemistry Group at RSES. Prof. Bennett is an international expert on the geochemistry of the early Earth, particularly as applied to understanding the formation and chemical evolution of the crust and mantle and the origin and development of the oldest continents.

Dr. Hoffmann was born in Germany. He received his B.Sc. and M.Sc. degrees from University of Münster (Germany) and his Ph.D. degree in 2011 from University of Bonn (Germany). After post-doc positions at the Universities of Bonn, Cologne and Berlin, he accepted a lecturer and lab manager position at the Freie Universität Berlin (Germany). He was mapping geologist for the Geological Survey of Denmark and Greenland (GEUS) during several field seasons in the Archean of western Greenland between 2005 and 2007. He carried out field work in the eastern Kaapvaal craton and in the Isua region of Greenland. He is an expert in Archean geology, where his specialty is in combining field geology and advanced analytical techniques in the field of isotope and trace element geochemistry, petrology and geochemical modelling to place constraints on the evolution of the early continental crust and the Archaean mantle.