Robert Frei

Robert Frei

Professor


  1. 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 journalJournal articleResearchpeer-review

  2. 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 journalJournal articleResearchpeer-review

  3. 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 journalJournal articleResearchpeer-review

  4. 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 proceedingConference abstract in proceedingsResearch

  5. 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 journalJournal articleResearchpeer-review

  6. 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 journalJournal articleResearchpeer-review

  7. Published

    Mobilization and isotope fractionation of chromium during water-rock interaction in presence of siderophores

    Kraemer, D., Frei, Robert, Viehmann, S. & Bau, M., 2019, In: Applied Geochemistry. 102, p. 44-54 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. 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 journalConference abstract in journalResearch

  9. 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 proceedingBook chapterResearch

  10. Published

    Microbially induced chromium isotope fractionation and trace elements behavior in lower Cambrian microbialites from the Jaíba Member, Bambuí Basin, Brazil

    Uhlein, G. J., Caxito, F. A., Frei, Robert, Uhlein, A., Sial, A. N. & Dantas, E. L., 1 Mar 2021, In: Geobiology. 19, 2, p. 125-146 22 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Metamorphism and polygenesis of the Madem Lakkos polymetallic sulfide deposit, Chalkidiki, Greece: a discussion

    Gilg, H. A., Frei, Robert, Kalogeropoulos, S. I. & Nicolaou, M., 1992, In: Economic Geology. 87, p. 1184-1193

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Mesoproterozoic evolution of the Rio de la Plata Craton in Uruguay: at the heart of Rodinia?

    Gaucher, C., Frei, Robert, Chemale, F., Frei, D., Bossi, G., Martinez, G., Chiglino, L. & Cernuschi, F., 2011, In: International Journal of Earth Sciences. 100, 2-3, p. 273-288 16 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Mercury enrichment and Hg isotopes in Cretaceous-Paleogene boundary successions: Links to volcanism and palaeoenvironmental impacts

    Sial, A. N., Chen, J., Lacerda, L. D., Frei, Robert, Tewari, V. C., Pandit, M. K., Gaucher, C., Ferreira, V. P., Cirilli, S., Peralta, S., Korte, Christoph, Barbosa, J. A. & Pereira, N. S., Nov 2016, In: Cretaceous Research. 66, p. 60-81

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous-Paleogene transition

    Sial, A. N., Lacerda, L. D., Ferreira, V. P., Frei, Robert, Marquillas, R. A., Barbosa, J. A., Gaucher, C., Windmöller, C. C. & Pereira, N. S., 2013, In: Palaeogeography, Palaeoclimatology, Palaeoecology - An International Journal for the Geo-Sciences. 387, p. 153-164 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Marine ferromanganese oxide: A potentially important sink of light chromium isotopes?

    Wei, W., Frei, Robert, Chen, T., Klaebe, R., Liu, H., Li, D., Wei, G. & Ling, H., 2018, In: Chemical Geology. 495, p. 90-103 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Mapping human mobility during the third and second millennia BC in present-day Denmark

    Frei, K. M., Bergerbrant, S., Sjögren, K., Jørkov, M L S, Lynnerup, Niels, Harvig, L., Allentoft, Morten Erik, Sikora, Martin, Price, T. D., Frei, Robert & Kristiansen, K., 2019, In: PLoS ONE. 14, 8, e0219850.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. 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 journalJournal articleResearchpeer-review

  18. Published

    Mantle heterogeneity during the formation of the North Atlantic Igneous Province: Constraints from trace element and Sr-Nd-Os-O isotope systematics of Baffin Island picrites

    Kent, A. J. R., Stolper, E. M., Francis, D., Woodland, J., Frei, Robert & Eiler, J., 2004, In: Geochemistry Geophysics Geosystems. Vol. 5/11, p. Q11004

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Macrofossil calcite: challenges and benefits of heterogeneity

    Ullmann, C. V., Korte, Christoph, Frei, Robert & Hesselbo, S. P., 2015, p. p. 61.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  20. Published

    Macrofossil Geochemistry: Palaeoenvironmental application

    Ullmann, C. V., Pereira, N. S., Frei, Robert & Korte, Christoph, 2014, p. 32.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  21. Published

    Lu-Hf and PbSL geochronology of apatites from Proterozoic terranes: a first look at Lu-Hf isotopic closure in metamorphic apatite

    Barfod, G. H., Krogstad, E. J., Frei, Robert & Albarède, F., 2005, In: Geochimica et Cosmochimica Acta. Vol. 69, p. 1847-1859

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Low oxygen seawater and major shifts in the paleoenvironment towards the terminal Ediacaran: Insights from the Portfjeld Formation, North Greenland

    Rugen, E. J., Ineson, J. R. & Frei, Robert, 2022, In: Precambrian Research. 379, 19 p., 106781.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Long- and short-term seawater temperature evolution of across the Toarcian Oceanic Anoxic Event in the Aubach section, Wutach area, SW Germany

    Korte, Christoph, Ullmann, C. V., Frederiksen, J. A., Frei, Robert, Hougård, Iben Winther & Rizzi, Malgorzata, 2017, p. 77–78 .

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  24. Published

    Lithostratigraphy and geochronology of the Neoproterozoic crystalline basement of Salalah, Dhofar, Sultanate of Oman

    Mercolli, I., Briner, A. P., Frei, Robert, Schoenberg, R., Naegler, T. F., Kramers, J. D. & Peters, T., 2006, In: Precambrian Research. 145, p. 182-206

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Lithospheric mantle xenoliths sampled by melts from upwelling asthenosphere: The Quaternary Tasse alkaline basalts of southeastern British Columbia, Canada

    Friedman, E., Polat, A., Thorkelson, D. J. & Frei, Robert, May 2016, In: Gondwana Research. 33, p. 209-230

    Research output: Contribution to journalJournal articleResearchpeer-review

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ID: 11756