Emeritus Professor for Microbiogeochemistry, ICBM, Oldenburg University, Germany

MARUM - Bremen University, Head of Sediment Geochemistry

Retired

The Australian National University

Institute of Oceanography, National Taiwan University

Leibniz Institute for Baltic Sea Research (IOW), Marine Geology

Emeritus Professor of Geology, Kent State University

Associate Professor of Sedimentary Geochemistry, Ferdowsi University of Mashhad

Jackson School of Geosciences, Bureau of Economic Geology, University of Texas at Austin

University of Hamburg