GFZ German research centre for geo sciences

Dr. Jens Kallmeyer

Group Leader
Dr. Jens Kallmeyer
Building A 71, Room 353 (Büro - Wissenschaftler/in)
14473 Potsdam

Function and Responsibilities:

Head of aquatic geochemistry laboratory
Head of radioisotope laboratory
Radiation safety officer

Research Interests:

Deep Biosphere
Biogeochemistry of lacustrine sediments
Lakes as carbon sinks
Pore water geochemistry
Direct turnover rate measurements with radiosotopes
Microbial biomass quantification


Since 6/2012 Staff Scientist at Helmholtz Center Potsdam, Section 4.5 Geomicrobiology (tenured)

6/2012-9/2013 Managing Head of the Geomicrobiology Group, Universität Potsdam

10/2008-5/2012 Head of the Geomicrobiology Group, Universität Potsdam, Germany, as part of the BMBF-funded “Forschungsverbundprojekt GeoEnergie”

12/2006-9/2008 Postdoctoral Scholar at the GeoForschungs Zentrum, Potsdam, Germany, Section  Organic Geochemistry.

1/2005-11/2006 Postdoctoral Scholar of the NASA Astrobiology Institute at the Graduate School of Oceanography of the University of Rhode Island, USA

10/2003-12/2004 Coordinator of the 2004 DEBITS (Deep Biosphere in Terrestrial Systems) drilling campaign GeoForschungs Zentrum Potsdam, Germany)

1/2000-9/2003 PhD Student at the Dept. of Biogeochemistry, Max Planck Institute for Marine Microbiology, Bremen, Germany

1999 Rotary Ambassadorial Scholar at the Dept. of Marine Sciences, University of North Carolina at Chapel Hill, USA


2003 Doctoral degree (Dr. rer. nat.), Universität Bremen

1999 Exchange Student at UNC Chapel Hill

1998 Diploma in Geology, Universität Bremen

1997/1998 Exchange Student at the Southampton Oceanography Centre

1995 Pre-Diploma in Geology/Paleontology, Universität


GeoFeLT (Geomicrobiology of Ferrouginous Lake Towuti)

FAMAFED (Formation of authigenic minerals associated with microbial activity in ferruginous sediments of Lake Towuti)

West Papua Lakes (Biogeochemistry of Lakes in West Papua Province, Indonesia)

Bykovsky Peninsula

T-Limit (Temperature Limit of the Deep Biosphere off Muroto, IODP Exp.370)

Shimokita Mud Volcano (Drilling into an active Mud Volcano offshore Shimokita Peninsula)

Research Boards and Committees:

2016-2019 IODP Scientific Evaluation Panel, German Representative

since 2016 Laboratorio Subterráneo de Canfranc, Spain, Member of the Advisory Board

2013-2018 International Society for Environmental Biogeochemistry, Member of the advisory board


2014 Distinguished Lecturer, European Consortium for Ocean Research Drilling (ECORD)

2005/2006 NASA Astrobiology Institute (NAI) Postdoctoral Fellowship

1998 Rotary Ambassadorial Scholarship

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