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Dr. Peter Sprung


Telefon
 +49 221 470-3193

Telefax +49 221 470-5199

E-Mail: psprung(at)uni-koeln.de

Research interests

  • Geochemistry/Geochronology

    • Earth as an evolving, geochemical System
    • The Bulk Lu-Hf and Sm-Nd systematics of the Earth
    • Isotopic and elemental systematics of mantle reservoirs
    • Evolution of the Continental Crust
    • Dating the oldest, chemically intact terrestrial rocks (Acasta Gneiss, NWT, Canada)
    • Isotopic response to Metamorphism
    • Unraveling the differentiation dynamics within the Early Earth
    • Within-plate volcanism
    • Dating metasomatic episodes in the Subcontinental Lithospheric mantle
    • Dating ore genesis (Olympic Dam U ore deposit)


  • Cosmochemistry/ Cosmochronology

    • Definition of the bulk Lu-Hf and Sm-Nd parameters of the Solar System
    • The Bulk Lu-Hf, Sm-Nd, and Hf-W systematics of the Moon
    • The evolution of the Moon and its Magma Ocean
    • Isotopic response to cosmic ray exposure
    • Neutron production and moderation in meteorites and lunar samples
    • Effects of neutron capture on cosmochronology (Lu-Hf, Sm-Nd, Hf-W)
    • Characterizing neutron fluence monitors for use in cosmochronology (Hf-, Sm-, Nd-, Pt-, Ir-, Cd-Isotopes)
    • Hf-W dating of planetary differentiation
    • Defining the nucleosynthetic heritage of Solar System materials using selective digestions and bulk analyses of primitive meteorites and their constituents
    • Short-lived isotope systems

  • Isotope Analysis/Mass spectrometry

    • High-Precision isotope analyses of Sm and Nd using TIMS and MC-ICPM
    • Improved high-Precision isotope analyses of Lu, Hf, Zr, Ti, and W by MC-ICPMS
    • Isotope analyses of Rb, Sr, and Pb using TIMS
    • Refined ion exchange and dissolution procedures for improved accuracy and precision in isotope analyses of natural rock or metal samples and artificially irradiated targets
    • Analysis of artificially produced, short-lived nuclides
    • Isotope analysis of element trace quantities for geo- and cosmochronology
    • (On-line) Detector inter-calibration in Multicollector Mass Spectrometry