Positions

2009 - Present: Co-chair of the Research Area "Ocean and Climate", Research Center and Cluster of Excellence "The Ocean in the Earth System"

2005 - Present: Head of the IODP group & Bremen Core Repository (BCR) at Bremen University

2001 - Present: Senior Research Scientist at the MARUM, Bremen University

1997 - Present: Manager of XRF Core Scanners Lab of Bremen University

1995 - 2001: Research Scientist at the Department of Geosciences, Bremen University

1994: Visiting scientist at the Earth and Atmospheric Science Department of Purdue University, West Lafayette, Indiana, USA

1991 – 1994: Assistant director in the German ODP office 

1991 – 1994: Marine geologist at Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hannover

1989 – 1991: Postdoctorate position at the Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hannover