China University of Geosciences Wuhan

Research Professor, Michigan Technological University

Professor in Geology, Massey University

Professor of Physical Geography, University of Lausanne

University of Minho

MNHN, CNRS, UPMC

Professor of Geology, Dept. of Earth Sciences, Montana State University

Dipartimento di Fisica e Scienze della Terra, Università di Ferrara

Professor of Geology, University of Johannesburg

Professor, School of Earth & Space Exploration, Arizona State University