Chair Professor of Earth Sciences, The University of Hong Kong

Distinguished Research Professor of Geochemistry, University of California, Los Angeles

Professor of Geosciences

Professor, Research School of Earth Sciences, Australian National University

Emeritus Professor of Geology, Louisiana State University

Earth and Planetary Sciences, Curtin University

Senior Research Fellow, Curtin Unversity

École normale supérieure de Lyon

Pennsylvania State University

CNRS, Laboratoire Magmas et Volcans, Université Clermont Auvergne