Emeritus Professor, University of Leicester

Professor of Geology emeritus, Mainz University, Germany, and Visiting Professor, Beijing …

Swedish Museum of Natural History

Professor of Earth and Atmospheric Sciences

Professor, Geology, Curtin University

Full Professor of University of São Paulo

CNRS, University of Montpellier

Professor of Earth and Atmospheric Sciences, University of Alberta

Professor of Petrology, Faculty of Life and Environmental Sciences, University of Tsukuba

Graduate School of Arts and Sciences, The University of Tokyo