Professor and University Research Professor, Memorial University of Newfoundland

Professor and Research Chair(s), University of Saskatchewan

National Institute of Advanced Studies, Bangalore, India

Department of Geology, Faculty of Science, University of Peradeniya, Sri Lanka

Associate Professor at Department of Earth Science, University of Bergen

Associate Professor of Geology, Colby College

Senior Lecturer (Geochemistry), James Cook University

Stanford University

Binghamton University

Minerals Geoscientist, British Geological Survey