Physics of Isotopologues
Dr. Tobias Kluge
The research of Dr. Tobias Kluge has its major focus on the investigation of multiply-substituted isotopologues, the understanding of physical processes that lead to isotope fractionation, and the application of new proxies technique for paleoclimate reconstruction. Amongst others, carbonate clumped isotopes and noble gases in fluid inclusions are promising new techniques for the assessment of past climate variations that are applied in this research group.
The research group is part of the Heidelberg Graduate School of Fundamental Physics (HGSFP).The research group is funded by the Excellence Initiative of DFG (German Research Foundation) and BMBF (German Ministry of Education and Research). The Excellence Intiative was intiated to foster world-class institutions and to promote cutting edge research.
- Installation of a new isotope ratio mass spectrometer:
Thermo Scientific MAT 253 Plus
The new mass spectrometer will mainly be used for the high-precision analysis of clumped isotopes and standard stable isotopes of carbonates. Impressions from the installation in March 2016 (positioning of the magnet) and the setup in the laboratory are shown below.
- Approval of two new research projects:
HEiKA project "Check Extrema", interdisciplinary research project on climatic extreme events investigated from Natural and Historical Sciences perspectives. Funded by the Heidelberg-Karlsruhe Research Partnership of Heidelberg University, and Karlsruhe Institute of Technology (KIT); Germany
Further information: HEiKA web site.
DFG project "Water isotopes in fluid inclusions of speleothems". Funded by the German Science Foundation DFG.
Further information: DFG web site.
- New publications
Ritter, A.-C., Kluge, T., Berndt, J., Richter, D.K., John, C.M., Bodin, S., Immenhauser, A., 2015. Application of redox sensitive proxies and carbonate clumped isotopes to Mesozoic and Paleozoic radiaxial fibrous calcite cements , Chemical Geology, 417, 306-321.
Kele, S., Breitenbach, S.F.M., Capezzuoli, E., Nele Meckler, A., Ziegler, M., Millan, I.M., Kluge, T., Deák, J., Hanselmann, K., John, C.M., Yan, H., Liu, Z., Bernasconi, S.M, 2015. Temperature dependence of oxygen- and clumped isotope fractionation in carbonates: a study of travertines and tufas in the 6-95°C temperature range, Geochimica et Cosmochimica Acta, 168, 172-192.
T. Kluge, C.M. John, 2015. Technical Note: A simple method for vaterite precipitation for isotopic studies: implications for bulk and clumped isotope analysis, Biogeosciences, 12, 3289-3299.
T. Kluge, C.M. John, 2015. Effects of brine chemistry and polymorphism on clumped isotopes revealed by laboratory precipitation of mono- and multiphase calcium carbonates, Geochimica et Cosmochimica Acta, accepted manuscript.
T. Kluge, C.M. John, A.-L. Jourdan, S. Davis, J. Crawshaw, 2015. Laboratory calibration of the calcium carbonate clumped isotope thermometer in the 25-250°C temperature range , Geochimica et Cosmochimica Acta, 157, 213-227.
A. Geske, R.H. Goldstein, V. Mavromatis, D.K. Richter, D. Buhl, T. Kluge, C.M. John, A. Immenhauser, 2015. The magnesium isotope (δ26Mg) signature of dolomites , Geochimica et Cosmochimica Acta, 149, 131-151.
W. Aeschbach-Hertig, T. Kluge, 2014. Verschlossene Vergangenheit-Tropfsteine als Klimaarchiv , Ruperto Carola 5(2014), 128-135.
- Dr. Tobias Kluge, Research group leader
Institute of Environmental Physics
Im Neuenheimer Feld 229, Room 3.30
Phone +49 (0)6221-54-6511
- Ivan Prokhorov, PhD student
- Therese Weißbach, PhD student
- Astrid Haderlein, Bachelor student
- Frieder Ernst, Staatsexamenskandidat
- Maximilian Kalb, Bachelor
Several research opportunities for master and bachelor students are currently available: Link
PublicationsFor the full publication list see: Link
Conference contributionsConference contributions of the research group are summarized here: Link