Robert Frei

Robert Frei

Professor

ORCID: 0000-0001-7708-9881

Publication year:
All
1 - 17 out of 17Page size: 100
  1. 1997
  2. Published

    Archean and proterozoic mineralization and tectonics at the renco mine (northern marginal zone, limpopo belt, Zimbabwe)-a reply

    Blenkinsop, T. G. & Frei, Robert, 1 Dec 1997, In: Economic Geology . 92, 6, p. 747-748 2 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  3. Published

    Mono-sample pb-pb dating of pyrrhotite and tourmaline: Proterozoic vs. Archean intracratonic gold mineralization: reply

    Frei, Robert & Pettke, T., 1 Dec 1997, In: Geology. 25, 7, p. 670-671 2 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  4. Published

    Growth of subcontinental lithospheric mantle beneath Zimbabwe started at or before 3.8 Ga: Re-Os study on chromites

    Nägler, T. F., Kramers, J. D., Kamber, B. S., Frei, Robert & Prendergast, M. D. A., 1 Jan 1997, In: Geology. 25, 11, p. 983-986 4 p.

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

  5. Published

    A new illite deposit near Le-Puy-en-Velay (France): Genesis and usage for waste encapsulation

    Gilg, H. A., Haus, R. & Frei, Robert, 1997, Mineral Deposits: Research and exploration - where do they meet ? . Papunen, H. (ed.). CRC Press/Balkema, p. 717-720

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  6. Published

    An energy-dispersive Miniprobe Multielement analyzer (EMMA) for direct analysis of trace elements and chemical age dating of single mineral grains

    Cheburkin, A. K., Frei, Robert & Shotyk, W., 1997, In: Chemical Geology. 135, p. 75-87

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

  7. Published

    Apparent controversies of Pb-Pb and Sm-Nd isotope systematics in the Archean Isua (West Greenland) BIF's: preservation of primary signatures vs. secondary disturbances

    Frei, Robert, Bridgewater, D. & Rosing, Minik Thorleif, 1997, In: EOS : Transactions. 78, 46, p. F830

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

  8. Published

    Archean and Proterozoic mineralization and tectonics at Renco Mine (Northern Marginal Zone, Limpopo Belt, Zimbabwe): a reply

    Blenkinsop, T. G. & Frei, Robert, 1997, In: Economic Geology. 92, p. 747-748

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

  9. Published

    Growth of subcontinental lithospheric mantle beneath Zimbabwe started at ~3.8 Ga: A Re-Os study on chromites

    Nägler, T. F., Kramers, J. D., Kamber, B. S., Frei, Robert & Prendergast, M. D. A., 1997, In: Geology. 25, 11, p. 983-986

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

  10. Published

    Isotope dating of residual kaolin deposits in Europe (Tirschenreuth, Germany and St. Yrieix, France)

    Gilg, H. A. & Frei, Robert, 1997, Energy and Mineral Resources for the 21st Century, Geology of Mineral Deposits, Mineral Economics: Proceedings of the 30th International Geological Congress. Rongfu, P. (ed.). Vol. 9. p. 123-133

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  11. Published

    Isotope systematics in vein gold from Brusson, Val d'Ayas (NW Italy). 2: (U+Th)/He and K/Ar in native Au and its fluid inclusions

    Pettke, T., Frei, Robert, Kramers, J. D. & Villa, I. M., 1997, In: Chemical Geology. 135, p. 173-187

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

  12. Published

    Mantle-derived K-feldspar granites in oceanic crust (Masirah ophiolite, Sultanate of Oman)

    Nägler, T. F. & Frei, Robert, 1997, In: Chemical Geology. 138, p. 119-126

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

  13. Published

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

    Frei, Robert & Pettke, T., 1997, In: Geology. 27, p. 670-671

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

  14. Published

    Pb stepwise leaching (PbSL) dating of garnet: addressing the inclusion problem

    Schaller, M., Steiner, O., Studer, I., Frei, Robert & Kramers, J. D., 1997, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 77, p. 113-121

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

  15. Published

    Single mineral dating by the Pb-Pb step-leaching method, assessing the mechanism

    Frei, Robert, Villa, I. M., Nägler, T. F., Kramers, J. D., Przybylowicz, W. J., Prozesky, V. M., Hofmann, B. A. & Kamber, B. S., 1997, In: Geochimica et Cosmochimica Acta. 61, p. 393-414

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

  16. 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

  17. Published

    U-Pb and Pb-Pb dating of diagenetic processes in black shales: True and false Pb-Pb isochrons

    Liebetrau, V., Frei, Robert, Buchardt, B. & Israelson, C., 1997, In: EOS : Transactions. v.78/46, p. F381

    Research output: Contribution to journal › Journal article › Research

  18. Published

    ‘Plug in plug' Os distillation

    Nägler, T. F. & Frei, Robert, 1997, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 77, p. 123-127

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

ID: 11756