Robert Frei

Robert Frei

Professor

ORCID: 0000-0001-7708-9881

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  1. Published

    Processes controlling the chromium isotopic composition of river water: constraints from basaltic river catchments

    D'Arcy, J. M., Babechuk, M. G., Døssing, L. N., Gaucher, C. & Frei, Robert, 2016, In: Geochimica et Cosmochimica Acta. Supplement. 186, p. 296-315 20 p.

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

  2. Published

    The chromium isotopic composition of an Early to Middle Ordovician marine carbonate platform, eastern Precordillera, San Juan, Argentina

    D'Arcy, J. M., Frei, Robert, Gilleaudeau, G. J., Peralta, S., Kah, L. & Gaucher, C., 16 Aug 2015. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research

  3. Published

    Redox fluctuations in the Early Ordovician oceans: an insight from chromium stable isotopes

    D'Arcy, J. M., Gilleaudeau, G. J., Peralta, S., Gaucher, C. & Frei, Robert, 2017, In: Chemical Geology. 448, p. 1-12 12 p.

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

  4. Published

    Step-leach Pb-Pb dating of inclusion-bearing garnet and staurolite: with implications for Early Proterozoic tectonism in the Black Hills collisional orogen, South Dakota, United States

    Dahl, P. S. & Frei, Robert, 1998, In: Geology. 26, 2, p. 111-114

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

  5. Published

    Comparative isotopic and chemical geochronometry of monazite, with implications for U-Th-Pb dating by electron microprobe: An example from metamorphic rocks of the eastern Wyoming Craton (U.S.A.)

    Dahl, P. S., Hamilton, M. A., Jercinovic, M. L., Terry, M. P., Williams, M. L. & Frei, Robert, 2005, In: American Mineralogist. Vol. 90, p. 619-638

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

  6. Published

    2480 Ma mafic magmatism in the northern Black Hills, South Dakota: a new link connecting the Wyoming and Superior cratons

    Dahl, P. S., Hamilton, M. A., Wooden, J. L., Foland, K. A. & Frei, Robert, 2006, In: Candian Journal of Earth Sciences. 43, p. 1579-1600

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

  7. Published

    Was the Black Hills domain (South Dakota) always part of the Archean Wyoming Craton? new evidence from ~3.4-2.7 Ga detrital-zircon populations found in both ~1.9 and ~2.5 Ga strata

    Dahl, P. S., Frei, Robert & Whitehouse, W. M. J., 2008, Geological Society of America Abstracts with Programs. Vol. 40(6). p. 145-15

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  8. Published

    The behavior of molybdenum and its isotopes across the chemocline and in the sediments of sulfidic Lake Cadagno, Switzerland

    Dahl, Tais Wittchen, Anbar, A. D., Gordon, G. W., Rosing, Minik Thorleif, Frei, Robert & Canfield, D. E., Jan 2010, In: Geochimica et Cosmochimica Acta. 74, 1, p. 144-163 20 p.

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

  9. Published

    Molybdenum evidence for expansive sulfidic water masses in similar ∼ 750 Ma oceans

    Dahl, Tais Wittchen, Canfield, D. E., Rosing, Minik Thorleif, Frei, Robert, Gordon, G. W., Knoll, A. H. & Anbar, A. D., 2011, In: Earth and Planetary Science Letters. 311, 3-4, p. 264-274

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

  10. Published

    Molybdenum isotope variations in a redox-stratified lake: Removal mechanism and preservation in euxinic sediments

    Dahl, Tais Wittchen, Anbar, A. D., Gordon, G. W., Rosing, Minik Thorleif, Frei, Robert & Canfield, D. E., 2008, Geochim. Cosmochim. Acta,. Vol. 72/12S. p. A194

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  11. Published

    Mo isotope variations in meromictic Lake Cadagno

    Dahl, Tais Wittchen, Anbar, A. D., Gordon, G. W., Frei, Robert & Canfield, D. E., 2008, In: Geochim. Cosmochim.. Acta 71, Supplement 1, p. p. A196

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

  12. Published

    Molybdenum evidence for expansive sulfidic water masses in ~ 750 Ma oceans

    Dahl, T. W., Canfield, D. E., Rosing, Minik Thorleif, Frei, Robert, Gordon, G. W., Knoll, A. H. & Anbar, A. D., 2011, In: Earth and Planetary Science Letters. 311, 3-4, p. 264-274 11 p.

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

  13. Published

    Sr, Pb and Nd isotope studies and their bearing on the petrogenesis of the Jalor and Siwana complexes, Rajasthan, India: A reply

    Dhar, S., Frei, Robert, Kramers, J. D., Nägler, T. F. & Kochhar, N., 1996, In: Journal of the Geological Society of India. 49, 4, p. 466-469

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

  14. Published

    Sr, Pb and Nd isotope studies and their bearing on the petrogenesis of the Jalor and Siwana complexes, Rajasthan, India

    Dhar, S., Frei, Robert, Kramers, J. D., Nägler, T. F. & Kochhar, N., 1996, In: Journal of the Geological Society of India. 48, 2, p. 151-160

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

  15. Published

    The geodynamic evolution of the eastern Sierras Pampeanas based on geochemical, Sm-Nd, Pb-Pb and SHRIMP data

    Drobe, M., Lopez de Luchi, M., Steenken, A., Wemmer, K., Naumann, R., Frei, Robert & Siegesmund, S., 2011, In: International Journal of Earth Sciences. 100, 2-3, p. 631-657 27 p.

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

  16. Published

    Provencance of the late Proterozoic to early Cambrian metaclastic sediments ot the Sierra de San Luis (Eastern Sierras Pampeanas) and Cordillera Oriental, Argentina

    Drobe, M., López de Luchi, M., Steenken, A., Frei, Robert, Naumann, R., Siegesmund, S. & Wemmer, K., 2009, In: Journal of South American Earth Sciences. 28, 3, p. 239-262

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

  17. Published

    Lead concentrations and isotopic ratios in recent snow samples from high alpine sites

    Döring, T., Frei, Robert, Gäggeler, H. W., Schwikowski, M. & Döscher, A., 1995. 4 p.

    Research output: Contribution to conference › Conference abstract for conference › Research

  18. Published

    Characterization of enriched lithospheric mantle components in ~2.7 Ga banded iron formations: an example from the Tati Greenstone Belt, Northeastern Botswana

    Døssing, L. N., Frei, Robert, Stendal, H. & Mapeo, R., 2009, In: Precambrian Research. 172, 3-4, p. 334-356

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

  19. Published

    Reduction of hexavalent chromium by ferrous iron: A process of chromium isotope fractionation and its relevance to natural environments

    Døssing, L. N., Dideriksen, K., Stipp, S. L. S. & Frei, Robert, 2011, In: Chemical Geology. 285, 1-4, p. 157-166 10 p.

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

  20. Published

    Geochemical constraints on the sources of Cr(VI) contamination in waters of Messapia (Central Evia) Basin

    Economou-Eliopoulos, M., Megremi, I., Vasilatos, C., Frei, Robert & Mpourodimos, I., 2017, In: Applied Geochemistry. 84, p. 13-25 13 p.

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

  21. Published

    Potential leaching of Cr(VI) from laterite mines and residues of metallurgical products (red mud and slag): an integrated approach

    Economou-Eliopoulos, M., Frei, Robert & Megremi, I., Mar 2016, In: Journal of Geochemical Exploration. 162, p. 40-49 10 p.

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

  22. Published

    Factors Controlling the Chromium Isotope Compositions in Podiform Chromitites

    Economou-Eliopoulos, M., Frei, Robert & Mitsis, I., 2020, In: Minerals. 10, 1, 10.

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

  23. Published

    Application of chromium stable isotopes to the evaluation of Cr(VI) contamination in groundwater and rock leachates from central Euboea and the Assopos basin (Greece)

    Economou-Eliopoulos, M., Frei, Robert & Atsarou, C., Nov 2014, In: CATENA. 122, p. 216-228 13 p.

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

  24. Published

    Diet and mobility among Mesolithic hunter-gatherers in Motala (Sweden) - The isotope perspective

    Eriksson, G., Frei, K. M., Howcroft, R., Gummesson, S., Molin, F., Liden, K., Frei, Robert & Hallgren, F., 2018, In: Journal of Archaeological Science: Reports. 17, p. 904-918 15 p.

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

  25. Published

    Noble gases, K, U, Th, and Pb in native gold

    Eugster, O., Niedermann, S., Thalmann, C., Frei, Robert, Kramers, J. D., Krähenbühl, U., Liu, Y. Z., Hofmann, B., Boer, R. H., Reimold, W. U. & Bruno, L., 1995, In: Journal of Geophysical Research: Solid Earth. B12, p. 24’677-24’689

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

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