Robert Frei

Robert Frei

Professor

ORCID: 0000-0001-7708-9881

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  1. Published

    Timing between granitoid emplacement and associated gold mineralization: examples from the ca. 2.7 Ga Harare-Shamva Greenstone Belt, Northern Zimbabwe

    Vinyu, M. L., Frei, Robert, Frei, Robert & Jelsma, H. A., 1996, In: Canadian Journal of Earth Sciences. 33, 7, p. 981-992

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

  2. Published

    Isotope systematics in vein gold from Brusson, Val d'Ayas (NW Italy), 1. Pb/Pb evidence for a Piemonte metaophiolite Au source

    Pettke, T. & Frei, Robert, 10 Jan 1996, In: Chemical Geology. 127, 1-3, p. 111-124 14 p.

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

  3. Published

    Isotope systematics in vein gold from Brusson, Val d'Ayaz (NW Italy). I: Pb/Pb evidence for a Piemonte metaophiolite Au source

    Pettke, T. & Frei, Robert, 1996, In: Chemical Geology. 127, p. 11-124

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

  4. Published

    Age constraints of reduction spot formation from Permian red bed sediments, northern Switzerland, inferred from U-Th-Pb systematics

    Hofmann, B. A. & Frei, Robert, 1996, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 76, p. 235-244

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

  5. Published

    Efficient N-TIMS rhenium isotope measurements on outgassed tantalum filaments: Very low filament blanks determined by a "standard addition" approach

    Frei, Robert, Nägler, T. F. & Meisel, T., 1 Jan 1996, In: International Journal of Mass Spectrometry and Ion Processes. 153, 2-3, p. L7

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

  6. Published

    The extent of inter-mineral isotope equilibrium: a systematic bulk U-Pb step leaching (PbSL) isotope study of individual minerals from the Tertiary granite of Jerissos (northern Greece)

    Frei, Robert, 1996, In: European Journal of Mineralogy. 8, p. 1175-1189

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

  7. Published

    Mono-sample Pb-Pb dating of pyrrhotite and tourmaline: Archean vs. Proterozoic gold mineralization in Zimbabwe

    Frei, Robert & Pettke, T., 1996, In: Geology. 24, p. 823-826

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

  8. Published

    Sulfur in bulk rock and igneous apatite: tracing mineralized and barren trends in intrusions

    Frei, Robert, 1996, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 127, p. 57-73

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

  9. Published

    Efficient N-TIMS Re-isotope measurements on outgassed Ta filaments: very low filament blanks determined by a "standard addition" approach

    Frei, Robert, Nägler, T. F. & Meisel, T., 1996, In: International Journal of Mass Spectrometry. 76, p. L7-L10

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

  10. Published

    Mono-sample Pb-Pb dating of pyrrhotite and tourmaline: Proterozoic vs. Archean intracratonic gold mineralization in Zimbabwe

    Frei, Robert & Pettke, T., 1 Jan 1996, In: Geology. 24, 9, p. 823-826 4 p.

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

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