Professor of Geochemistry, Macquarie University

Professor of Geology, Macquarie University

Institute of Geology and Geophysics, Chinese Academy of Sciences

Max Planck Institute for Chemistry

Rensselear Polytechnic Institute

University of Wisconsin

China University of Geosciences (Wuhan)

Emeritus Professor, Open University

LMU - University of Munich

Staff Scientist, Carnegie Institution for Science