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- Hallmann, Christian
Prof. Dr. Christian Hallmann
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Link to research group:
www.bgc.mpg.de/~challmann
www.marum.de/AG_Hallmann.html
Education, Training, Appointments
since 2012 | Max-Planck-Research-Group leader | MPI for Biogeochemistry |
since 2012 | Staff Scientist & Lecturer | MARUM |
2010-2011 | Postdoctoral Associate | MIT |
2008-2009 | Agouron Postdoctoral Fellow in Geobiology | MIT |
2005-2009 | PhD in Applied Chemistry | Curtin University |
1999-2004 | Diplom in Geology-Paleontology | University of Cologne |
Research
Our lab uses methods of molecular and isotopic organic geochemistry to study Precambrian Earth system evolution and enhance our understanding of the co-evolution of environmental conditions and organismic diversity. Two key focus areas are the Archean–Proterozoic boundary, which witnessed the first rise of atmospheric oxygen, and the Neoproterozoic Era. During the latter period, strong imbalances in the marine carbon cycle were accompanied by severe glacial episodes, changes in global ocean chemistry and the first appearance of complex biota in the form of metazoa. Using biomarker lipids and their stable isotopic composition we attempt to understand the connection between these individual observations.
Currently teaching
- 05-GEO-2-K8-1 - Molecular Geobiology (since 2012)
Selected publications
Feulner G*, Hallmann C*, Kienert H (2015) Snowball cooling after algal rise. Nature Geoscience 8: 659–662. Link
French K*, Hallmann C, Hope J, Schoon PL, Zumberge JA, Hoshino Y, Peters CA, George SC, Love GD, Brocks JJ, Buick R, Summons RE (2015) Reappraisal of hydrocarbon biomarkers in Archean rocks. Proceedings of the National Academy of Sciences USA 112: 5915–5920. Link
Hallmann C*, Summons RE (2014) Paleobiological clues to early atmospheric evolution. In: Canfield D, Kasting J, Farquhar J (Eds) Treatise on geochemistry 2nd Ed., Vol. 6: The atmosphere – History Elsevier. pp 139–155. Link
Hallmann C*, Schwark L, Grice K (2008) Community dynamics of anaerobic bacteria in deep petroleum reservoirs. Nature Geoscience 1, 588–591. Link
French K*, Hallmann C, Hope J, Schoon PL, Zumberge JA, Hoshino Y, Peters CA, George SC, Love GD, Brocks JJ, Buick R, Summons RE (2015) Reappraisal of hydrocarbon biomarkers in Archean rocks. Proceedings of the National Academy of Sciences USA 112: 5915–5920. Link
Hallmann C*, Summons RE (2014) Paleobiological clues to early atmospheric evolution. In: Canfield D, Kasting J, Farquhar J (Eds) Treatise on geochemistry 2nd Ed., Vol. 6: The atmosphere – History Elsevier. pp 139–155. Link
Hallmann C*, Schwark L, Grice K (2008) Community dynamics of anaerobic bacteria in deep petroleum reservoirs. Nature Geoscience 1, 588–591. Link