Dr. Thomas Kruijer

Dr. Thomas Kruijer

Wilhelm-Klemm-Str. 10
48149 Münster

T: +49 251 83-39039

External Profile

  • Research Foci

    Early solar system evolution

    In particular: Early solar system chronology; Early evolution of the solar protoplanerary disk; Origin, accretion and differentiation history of small planetary bodies; Accretion and early differentiation of Earth and Moon; Irradiation and neutron capture effects in extraterrestrial materials; Nucleosynthetic isotope heterogeneity; Iron meteorites; Refractory inclusions (CAI)

    Origin, accretion and differentiation history of protoplanets

    Hf-W chronometry; Tungsten (W) isotopes; Platinum (Pt) isotopes; Ultra-clean laboratory techniques: sample digestion, chemical separation; Multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS)

    Hf-W chronometry of terrestrial and extraterrestrial materials

    Accretion and early differentiation history of Earth , Moon, and Mars

    Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICPMS)

  • CV

    Academic Education

    Doctoral degree (Dr. sc. ETH Zurich) in isotope cosmochemistry, ETH Zurich, Inst. of Geochemistry and Petrology, Switzerland.
    Master of Science (MSc.) in Geosciences of Basins and Lithosphere - Research Master VU University Amsterdam, Faculty of Earth and Life Sciences, The Netherlands
    Bachelor of Science (BSc.) in Earth sciences (Geology) VU University Amsterdam, Faculty of Earth and Life Sciences, The Netherlands

    Positions

    Research Associate (Akad. Rat auf Zeit.), Inst. for Planetology, University of Münster
    Postdoctoral research fellow, Institute for Planetology, University of Münster, Germany
    Postdoctoral researcher, Institute for Geochemistry and Petrology, ETH Zürich, Switzerland
    Scientific asisstant, Institute for Geochemistry and Petrology, ETH Zürich, Switzerland

    Honors

    Medaille der ETH Zürich – Eidgenössische Technische Hochschule Zürich
    Escher prize – Royal Geological and Mining Society (KNGMG)

  • Project

  • Publications

    • Hellmann J L, Kruijer T S, Metzler K, Patzek M, Pack A, Berndt J, Kleine T. . ‘Hf-W chronology of a macrochondrule from the L5/6 chondrite Northwest Africa 8192.’ Meteoritics and Planetary Science 55, № 10: 2241–2255. doi: 10.1111/maps.13571.

    • Hellmann J L, Kruijer T S, Van Orman J A, Metzler K, Kleine T. . ‘Hf-W chronology of ordinary chondrites.’ Geochimica et Cosmochimica Acta 258: 290–309. doi: 10.1016/j.gca.2019.05.040.

    • Budde G., Kruijer T.S., Kleine T. . ‘Hf-W chronology of CR chondrites: Implications for the timescales of chondrule formation and the distribution of 26Al in the solar nebula.’ Geochimica et Cosmochimica Acta 222: 284–304. doi: 10.1016/j.gca.2017.10.014.
    • Kruijer, T.S. Kleine, T. . ‘No 182W excess in the Ontong Java Plateau source.’ Chemical Geology 485: 24–31. doi: 10.1016/j.chemgeo.2018.03.024.

    • Kruijer T., Kleine T. . ‘Tungsten isotopes and the origin of the Moon.’ Earth and Planetary Science Letters 475, № null: 15–24. doi: 10.1016/j.epsl.2017.07.021.
    • Kruijer T., Kleine T., Borg L., Brennecka G., Irving A., Bischoff A., Agee C. . ‘The early differentiation of Mars inferred from Hf–W chronometry.’ Earth and Planetary Science Letters 474, № null: 345–354. doi: 10.1016/j.epsl.2017.06.047.
    • Kruijer, T.S. Burkhardt, C. Budde, G. Kleine, T. . ‘Age of Jupiter inferred from the distinct genetics and formation times of meteorites.’ Proceedings of the National Academy of Sciences of the United States of America 114, № 26: 6712–6716. doi: 10.1073/pnas.1704461114.
    • Krabbe N., Kruijer T., Kleine T. . ‘Tungsten stable isotope compositions of terrestrial samples and meteorites determined by double spike MC-ICPMS.’ Chemical Geology 450, № null: 135–144. doi: 10.1016/j.chemgeo.2016.12.024.
    • Dale C.W., Kruijer T.S., Burton K.W. . ‘Highly siderophile element and 182W evidence for a partial late veneer in the source of 3.8 Ga rocks from Isua, Greenland.’ Earth and Planetary Science Letters 458: 394–404.
    • Herd C., Walton E., Agee C., Muttik N., Ziegler K., Shearer C., Bell A., Santos A., Burger P., Simon J., Tappa M., McCubbin F., Gattacceca J., Lagroix F., Sanborn M., Yin Q., Cassata W., Borg L., Lindvall R., Kruijer T., Brennecka G., Kleine T., Nishiizumi K., Caffee M. . ‘The Northwest Africa 8159 martian meteorite: Expanding the martian sample suite to the early Amazonian.’ Geochimica et Cosmochimica Acta 218, № null: 1–26. doi: 10.1016/j.gca.2017.08.037.

    • Budde G., Burkhardt C., Brennecka G.A., Fischer-Gödde M., Kruijer T.S., Kleine T. . ‘Molybdenum isotopic evidence for the origin of chondrules and a distinct genetic heritage of carbonaceous and non-carbonaceous meteorites.’ Earth and Planetary Science Letters 454: 293–303. doi: 10.1016/j.epsl.2016.09.020.
    • Budde G., Kleine T., Kruijer T.S., Burkhardt C., Metzler K. . ‘Tungsten isotopic constraints on the age and origin of chondrules.’ Proceedings of the National Academy of Sciences of the United States of America 113: 2886–2891. doi: 10.1073/pnas.1524980113.

    • Budde G., Kruijer T.S., Fischer-Gödde M., Irving A.J., Kleine T. . ‘Planetesimal differentiation revealed by the Hf-W systematics of ureilites.’ Earth and Planetary Science Letters 430: 316–325. doi: 10.1016/j.epsl.2015.08.034.
    • Fischer-Gödde M., Burkhardt C., Kruijer T., Kleine T. . ‘Ru isotope heterogeneity in the solar protoplanetary disk.’ Geochimica et Cosmochimica Acta 168: 151–171. doi: 10.1016/j.gca.2015.07.032.
    • Matthes M., Fischer-Gödde M., Kruijer T., Leya I., Kleine T. . ‘Pd-Ag chronometry of iron meteorites: Correction of neutron capture-effects and application to the cooling history of differentiated protoplanets.’ Geochimica et Cosmochimica Acta 169, № null: 45–62. doi: 10.1016/j.gca.2015.07.027.
    • Kruijer Thomas, Kleine Thorsten, Fischer-Gödde Mario, Sprung Peter. . ‘Lunar tungsten isotopic evidence for the late veneer.’ Nature 520: 534–537.
    • Cook D.L., Kruijer T.S., Kleine T. . ‘Reply to comment by Peters et al. (2015) on "Cosmogenic 180W variations in meteorites and re-assessment of a possible 184Os-180W decay system".’ Geochimica et Cosmochimica Acta 169: 240–243.

    • Kruijer, T.S., Kleine, T., Fischer-Gödde, M., Burkhardt, C., Wieler, R. . ‘Nucleosynthetic W isotope anomalies and the Hf-W chronometry of Ca-Al-rich inclusions.’ Earth and Planetary Science Letters 403: 317–327.
    • Kruijer T.S., Touboul M., Fischer-Godde M., Bermingham K.R., Walker R.J., Kleine T. . ‘Protracted core formation and rapid accretion of protoplanets.’ Science 344, № 6188: 1150–1154. doi: 10.1126/science.1251766.
    • Cook D.L., Kruijer T.S., Leya I., Kleine T. . ‘Cosmogenic 180W variations in meteorites and re-assessment of a possible 184Os-180W decay system.’ Geochimica et Cosmochimica Acta 140, № null: 160–176. doi: 10.1016/j.gca.2014.05.013.

    Research Articles (Journals)
    • Kruijer T.S., Sprung P., Kleine T., Leya I., Wieler R. . ‘The abundance and isotopic composition of Cd in iron meteorites.’ Meteoritics and Planetary Science 48: 2597–2607.
    • Kruijer TS, Fischer-Gödde M, Kleine T, Sprung P, Leya I, Wieler R. . ‘Neutron capture on Pt isotopes in iron meteorites and the Hf-W chronology of core formation in planetesimals.’ Earth and Planetary Science Letters 361: 162–172. doi: 10.1016/j.epsl.2012.10.014.
    Theses (Doctoral or Postdoctoral)
    • Kruijer Thomas. . Hf-W chronology of planetary accretion and differentiation at the dawn of solar system history Dissertation thesis, ETH Zurich.

    • Kruijer T.S., Sprung P., Kleine T., Leya I., Burkhardt C., Wieler R. . ‘Hf–W chronometry of core formation in planetesimals inferred from weakly irradiated iron meteorites.’ Geochimica et Cosmochimica Acta 99: 287–304.