Robert Frei

Robert Frei

Professor

ORCID: 0000-0001-7708-9881

Publication year:
All
1 - 25 out of 380Page size: 25
Sort by: 1st author
  1. Published

    Trace elements and isotope geochemistry (C, O, Fe, Cr) of the Cauê iron formation, Quadrilátero Ferrífero, Brazil: Evidence for widespread microbial dissimilatory iron reduction at the Archean/Paleoproterozoic transition

    Teixeira, N. L., Caxito, F. A., Rosière, C. A., Pecoits, E., Vieira, L., Frei, Robert, Sial, A. N. & Poitrasson, F., 2017, In: Precambrian Research. 298, p. 39-55 17 p.

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

  2. Published

    Provenance of the Late Ediacaran Rocha Formation, Cuchilla Dionisio Terrane, Uruguay: Tectonic implications on the assembly of Gondwana

    Abre, P., Blanco, G., Gaucher, C., Frei, D. & Frei, Robert, 2020, In: Precambrian Research. 342, 105704.

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

  3. Published

    The Pan-African West Congo belt in the Republic of Congo (Congo Brazzaville): stratigraphy of the Mayombe and West Congo supergroups studied by detrital zircon geochronology

    Affaton, P., Kalsbeek, F., Boudzoumou, F., Trompette, R., Thrane, K. & Frei, Robert, 2016, In: Precambrian Research. 272, p. 185-202 18 p.

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

  4. Published

    Response to "Comment on "The Nd and Hf isotopic evolution of the mantle through the Archean. Results from the Isua supracrustals, West Greenland, and from the Birimian terranes of West Africa" by Blichert-Toft et al. (1999)

    Albarede, F., Blichert-Toft, J., Frei, Robert & Rosing, Minik Thorleif, 2001, In: Geochimica et Cosmochimica Acta. 65, p. 2023-2025

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

  5. Published

    Geochemical and Pb-Sr-Nd isotopic constraints indicating an enriched mantle source for late Cretaceous to early Tertiary volcanism, Central Anatolia, Turkey

    Alpaslan, M., Frei, Robert, Boztug, D., Kurt, M. A. & Temel, A., 2004, In: International Geology Review. Vol. 46/11, p. 1022-1041

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

  6. Published

    Geochemical and Pb-Sr-Nd isotopic composition of ultrapotassic volcanic rocks from the extension-related Camardi-Ulukisla basin, Nigde Province, Central Anatolia, Turkey

    Alpaslan, M., Boztug, D., Frei, Robert, Temel, A. & Kurt, M. A., 2006, In: Journal of Asian Earth Sciences. 27, p. 613-627

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

  7. Published

    Origin of the ultrapotassic volcanics within the Late Cretaceous to early Tertiary Ulukisla Basin, Central Anatolia, Turkey. 14th Annual V.M. Goldschmidt Conference, Copenhagen, Denmark, June 7-12

    Alpaslan, M., Frei, Robert, Kurt, M. A., Temel, A. & Boztug, D., 2004, In: Geochimica et Cosmochimica Acta. Vol. 68/11S, p. A605

    Research output: Contribution to journal › Journal article › Research

  8. Published

    The occurrence of porphyritic syenite at Lake Mykle, the Oslo rift: a possible derivate of larvikite

    Andersen, T., Frei, Robert, Sørensen, H. & Westphal, N., 2004, In: Norsk Geologiske Undersøkelse Bulletin. 442, p. 23-28

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

  9. Published

    Porphyritic syenite at Lake Mykle, the Oslo rift: a possible derivative of larvikite

    Andersen, T., Frei, Robert, Sørensen, H. & Westphal, N. L., 2004, In: Norges Geologiske Undersøkelse, Bulletin. 442, p. 23-28

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

  10. Published

    Dacitic ocelli in mafic lavas, 3.7-3.8 Ga Isua greenstone belt, Western Greenland: geochemical evidence for partial melting of oceanic crust and magma mixing

    Appel, P. W. U., Polat, A. & Frei, Robert, 2009, In: Chemical Geology. 258, p. 105-124

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

  11. Published

    Different degrees of partial melting of the enriched mantle source for Plio-Quaternary basic volcanism, Toprakkale (Osmaniye) Region, Southern Turkey

    Bagci, U., Alpaslan, M., Frei, Robert, Kurt, M. A. & Temel, A., Mar 2011, In: Turkish Journal of Earth Sciences. 20, 1, p. 115-135 21 p.

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

  12. Published

    The age of the earliest animal fossils

    Barfod, G. H., Albarède, F., Knoll, A. A., Shuhai, X., Trelouk, P., Frei, Robert & Baker, J. A., 2002, In: Earth and Planetary Science Letters. 201, p. 203-212

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

  13. Published

    New Lu-Hf and Pb-Pb age constraints on the earliest animal fossils

    Barfod, G. H., Albarède, F., Knoll, A. H., Xiao, S., Télouk, P., Frei, Robert & Baker, J., 13 Aug 2002, In: Earth and Planetary Science Letters. 201, 1, p. 203-212 10 p.

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

  14. 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 journal › Journal article › Research › peer-review

  15. Published

    High-resolution Ge-Si-Fe, Cr isotope and Th-U data for the Neoarchean Temagami BIF, Canada, suggest primary origin of BIF bands and oxidative terrestrial weathering 2.7 Ga ago

    Bau, M., Frei, Robert, Garbe-Schönberg, D. & Viehmann, S., 1 Jul 2022, In: Earth and Planetary Science Letters. 589, 9 p., 117579.

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

  16. Published

    Pulsed volcanism and rapid oceanic deoxygenation during Oceanic Anoxic Event 1a

    Bauer, K. W., Bottini, C., Frei, Robert, Asael, D., Planavsky, N. J., Francois, R., McKenzie, N. R., Erba, E. & Crowe, S. A., 2021, In: Geology. 49, 12, p. 1452-1456 5 p.

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

  17. Published

    Rare earth element mineralogy and geochemistry in a laterite profile from Madagascar

    Berger, A., Janots, E., Gnos, E., Frei, Robert & Bernier, F., Feb 2014, In: Applied Geochemistry. 41, p. 218-228 11 p.

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

  18. Published

    Cr-isotopes and REE variations in a laterite profile: Implication for redox processes and element mobility during weathering

    Berger, A. & Frei, Robert, 2011, In: Mineralogical Magazine. 75, 3, p. 516 1 p.

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

  19. Published

    Dating brittle tectonic movements with cleft monazite: fluid-rock interaction and formation of REE minerals

    Berger, A., Gnos, E., Janots, E., Whitehouse, M., Soom, M., Frei, Robert & Waight, Tod, 2013, In: Tectonics. 32, 5, p. 1176–1189 14 p.

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

  20. Published

    The fate of chromium during tropical weathering: A laterite profile from Central Madagascar

    Berger, A. & Frei, Robert, Jan 2014, In: Geoderma. 213, p. 521-532 12 p.

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

  21. Published

    Continued study of the origin of the cratonic upper mantle

    Bernstein, S., Kelemen, P. B., Hanghøj, K., Kelley, R., Blusztajn, J. & Frei, Robert, 1999, Italien. 10 p.

    Research output: Book/Report › Report › Research

  22. Published

    The origin of phonolites and trachytes from the Col de Guéry area, le Mont-Dore, Massif Central, France

    Bernth, U., Brousse, R., Frei, Robert & Sørensen, H., 2002, In: Matematisk Fysiske Meddelelser - Kongelige Danske Videnskabernes Selskab. 50, p. 61

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

  23. Published

    Osmium and lead isotopes of rare OsIrRu minerals: A core-mantle boundary derivation?

    Bird, J. M., Meibom, A., Frei, Robert & Nägler, T. F., 1999, In: Earth and Planetary Science Letters. 170, p. 83-92

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

  24. Published

    Osmium and lead isotopes of rare OsIrRu minerals: A core-mantle boundary derivation?

    Bird, J. M., Meibom, A., Frei, Robert & Nägler, T. F., 1998, In: EOS : Transactions. v.79/45, p. F966

    Research output: Contribution to journal › Journal article › Research

  25. Published

    Archean and proterozoic mineralization and tectonics at the Renco mine (Northern Marginal Zone, Limpopo Belt, Zimbabwe)

    Blenkinsop, T. G. & Frei, Robert, 1 Dec 1996, In: Economic Geology . 91, 7, p. 1225-1238 14 p.

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

Previous 1 2 3 4 5 6 7 8 ...16 Next

ID: 11756