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Dr. Mario Fischer-Gödde

Telefon +49 221 470-89830

Telefax +49 221 470-5199

E-Mail: mfisch48@uni-koeln.de

Research Interests

My research focuses on the chemical evolution of the solar system and the accretion and differentiation history of asteroids and planets. More precisely, I am working on the origin and the nature of the planetary raw materials, the timescales of planetary accretion and the evolution of the chemical composition of planetary bodies during their accretion and differentiation history. To address these questions, I use high-precision isotope ratio and trace element studies of different types of planetary materials, such as terrestrial rocks, meteorites, lunar samples, and impact rocks.

Analytical Expertise

Isotope geo- and cosmochemistry

  • Radiogenic isotopes (Re-Os, Pd-Ag, Hf-W, Sm-Nd)
  • Mass-independent stable isotope variations (Ru, Mo, Pt)
  • Mass-dependent stable isotope variations (Ru, Mo)
  • Isotope dilution concentration determination

Mass spectrometry

  • Multi collector inductively coupled plasma mass spectrometry (MC-ICPMS)
  • Thermal ionization mass spectrometry (TIMS)
  • Single collector quadrupole and sector field inductively coupled plasma mass spectrometry (ICPMS)

Development of novel analytical procedures for

  • Precise isotope ratio measurements
  • Low-blank trace element concentration determination

Selected Publications

  • Fischer-Gödde M. and Kleine T. (2017). Ruthenium isotopic evidence for an inner solar system origin of the late veneer. Nature 541, 525-527.
  • Fischer-Gödde M., Burkhardt C., Kruijer T. S. and Kleine T. (2015). Ru isotope heterogeneity in the solar protoplanetary disk. Geochim. Cosmochim. Acta 168, 151-171.
  • Fischer-Gödde M. and Becker H. (2012). Osmium isotope and highly siderophile element constraints on ages and nature of meteoritic components in ancient lunar impact rocks. Geochim. Cosmochim. Acta 77, 135-156.


  • Formation and evolution of the solar system (MSc, University of Münster)
  • Planetology laboratory course (MSc, University of Münster)
  • Interdisciplinary seminar (MSc, University of Münster)
  • Introduction to plasma source mass spectrometry     (MSc, Freie Universität Berlin)
  • Polarization microscopy of rock forming minerals (BSc, University of Münster)
  • Fieldexcursion Harz Mountains (BSc, University of Münster)
  • Laboratory methods in geo- and hydrogeochemistry (BSc, Freie Universität Berlin)