Robert Frei

Robert Frei

Professor

ORCID: 0000-0001-7708-9881

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  1. Published

    Earth´s oldest BIFs (Isua, W Greenland): constraints from Ge/Si ratios, REE systematics and Sm-Nd and Pb isotopes for differentinteracting water masses during their formation

    Frei, Robert & Polat, A., 2008, In: Geochim. Cosmochim.. Acta 71, Supplement 1, p. A296

    Research output: Contribution to journal › Conference abstract in journal › Research

  2. Published

    Surface water oxygenation and low bioproductivity during deposition of iron formation of the Jacadigo Group (Brazil): Insights from combined cadmium – Chromium isotopes

    Frei, Robert, Gaucher, C., Boggiani, P. C., Frederiksen, J. A., Walker, Samantha Renee, Fernandes, H. A. & Caxito, F., 5 Jul 2024, In: Chemical Geology. 657, 122101.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    The evolution of the mineralizing fluid in the porphyry copper system of Skouries, NE Chalkidiki, (Greece): evidence from combined Pb-Sr and stable isotope data

    Frei, Robert, 1995, In: Economic Geology . 90, p. 746-762

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Surface water oxygenation and low bioproductivity during deposition of iron formation of the Jacadigo Group (Brazil): Insights from combined cadmium – Chromium isotopes

    Frei, Robert, Claudio, G., Boggiani, P. C., Frederiksen, J. A., Walker, Samantha Renee, Albuquerque Fernandes, H. & Caxito, F. A., 2024, In: Chemical Geology. 657, 122101.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Signals of combined chromium–cadmium isotopes in basin waters of the Early Cambrian – Results from the Maoshi and Zhijin sections, Yangtze Platform, South China

    Frei, Robert, Xu, L., Frederiksen, J. A. & Lehmann, B., 1 Mar 2021, In: Chemical Geology. 563, 20 p., 120061.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Mineral occurrences in central East Greenland (70 N-75 N) and their relation to the Caledonian orogeny: a Sr-Nd-Pb isotopic study of scheelite

    Frei, Robert & Stendal, H., 2008, The Greenland Caledonides - evolution of the northeast margin of Laurentia. Smith, M. P., Higgins, A. K. & Gilotti, J. A. (eds.). Boulder, Colo.: The Geological Society of America, p. 293-306 (Memoir / Geological Society of America; No. 202).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  7. Published

    Oxidative elemental cycling under the low O2 Eoarchean atmosphere

    Frei, Robert, Crowe, S. A., Bau, M., Polat, A., Fowle, D. A. & Døssing, L. N., 11 Feb 2016, In: Scientific Reports. 6, 21058.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Fluctuations in Precambrian atmospheric oxygenation recorded by chromium isotopes

    Frei, Robert, Gaucher, C., Canfield, D. E. & Poulton, S. W., 2009, In: Nature. 461, p. 250-253

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Isotope (Pb, Rb-Sr, S, O, C, U-Pb) geochemical investigations on Tertiary intrusives and related mineralizations in the Serbomacedonian Pb-Zn, Sb+Cu-Mo metallogenetic province in Northern Greece

    Frei, Robert, 1992, Swiss Federal Institute of Technology (ETH) Zürich, Switzerland. 231 p.

    Research output: Book/Report › Ph.D. thesis › Research

  10. Published

    Studies of progressive leaching in single mineral Pb/Pb dating: Nuclear Microprobe Technology and Applications

    Frei, Robert, Prozesky, V. M. & Przybylowicz, W., 1997, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. B 130, p. 676-681

    Research output: Contribution to journal › Journal article › Research › peer-review

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