Robert Frei

Robert Frei

Professor

ORCID: 0000-0001-7708-9881

Publication year:
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51 - 75 out of 381Page size: 25
  1. 2020
  2. Published

    Enigmatic 1146 +/- 4 Ma old granite in the southeastern rim of the West African craton, now part of the Dahomeyan orogenic belt in Ghana

    Kalsbeek, F., Frei, D., Schersten, A., Frei, Robert, Gerdes, A. & Kalvig, P., 2020, In: Journal of African Earth Sciences. 167, 14 p., 103814.

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

  3. Published

    A strontium isotope baseline of Cyprus. Assessing the use of soil leachates, plants, groundwater and surface water as proxies for the local range of bioavailable strontium isotope composition

    Ladegaard-Pedersen, P., Achilleos, M., Dörflinger, G., Frei, Robert, Kristiansen, K. & Frei, K. M., 2020, In: Science of the Total Environment. 708, 134714.

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

  4. Published

    Evidence for Neoarchean hydrous arc magmatism, the anorthosite-bearing Mayville Intrusion, western Superior Province, Canada

    Sotiriou, P., Polat, A., Frei, Robert, Yang, X. & van Vessem, J., 2020, In: Lithos. 362-363, 105482.

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

  5. Published

    A strontium isotope pilot study using cremated teeth from the Vollmarshausen cemetery, Hesse, Germany

    Taylor, N., Frei, K. M. & Frei, Robert, 2020, In: Journal of Archaeological Science: Reports. 31, 102356.

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

  6. Published

    Biogeochemical cycle of chromium isotopes at the modern Earth's surface and its applications as a paleo-environment proxy

    Wei, W., Klaebe, R., Ling, H., Huang, F. & Frei, Robert, 20 May 2020, In: Chemical Geology. 541, 119570.

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

  7. Published

    Variations of redox conditions in the atmosphere and Yangtze Platform during the Ediacaran-Cambrian transition: Constraints from Cr isotopes and Ce anomalies

    Wei, W., Frei, Robert, Gilleaudeau, G. J., Li, D., Wei, G., Huang, F. & Ling, H., 2020, In: Palaeogeography, Palaeoclimatology, Palaeocology. 543, 11 p., 109598.

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

  8. Published

    Ediacaran Doushantuo-type biota discovered in Laurentia

    Willman, S., Peel, J. S., Ineson, J. R., Schovsbo, N. H., Rugen, E. J. & Frei, Robert, 1 Dec 2020, In: Communications Biology . 3, 1, 10 p., 647.

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

  9. 2019
  10. Published

    Chromium isotope cycling in the water column and sediments of the Peruvian continental margin

    Bruggmann, S., Scholz, F., Klaebe, R. M., Canfield, D. E. & Frei, Robert, 2019, In: Geochimica et Cosmochimica Acta. 257, p. 224-242 23 p.

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

  11. Published

    Heterogeneity and incorporation of chromium isotopes in recent marine molluscs (Mytilus)

    Bruggmann, S., Klaebe, R. M., Paulukat, C. & Frei, Robert, 2019, In: Geobiology. 17, 4, p. 417-435 19 p.

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

  12. Published

    Fractionation Behavior of Chromium Isotopes during the Sorption of Cr (VI) on Kaolin and its Implications for Using Black Shales as a Paleoredox Archive

    Frank, A. B., Klaebe, R. M. & Frei, Robert, 2019, In: Geochemistry Geophysics Geosystems. 20, 5, p. 2290-2302 13 p.

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

  13. Published

    Redox fluctuations during the Ediacaran-Cambrian transition, Nanhua Basin, South China: Insights from Cr isotope and REE+Y data

    Frank, A. B., Klaebe, R. M., Xu, L. & Frei, Robert, 2019, In: Chemical Geology. 525, p. 321-333 13 p.

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

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

  15. Published

    The role of pH on Cr(VI) partitioning and isotopic fractionation during its incorporation in calcite

    Füger, A., Bruggmann, S., Frei, Robert, Leis, A., Dietzel, M. & Mavromatis, V., 2019, In: Geochimica et Cosmochimica Acta. 265, p. 520-532 13 p.

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

  16. Published

    The Archean-Proterozoic Boundary and the Great Oxidation Event

    Gaucher, C. & Frei, Robert, 2019, Chemostratigraphy Across Major Chronological Boundaries. Sial, A. N., Gaucher, C., Ramkumar, M. & Ferreira, V. P. (eds.). Wiley, p. 35-45 11 p. (Geophysical Monograph Series, Vol. 240).

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

  17. Published

    Bioavailable 87Sr/86Sr in European soils: A baseline for provenancing studies

    Hoogewerff, J. A., Reimann, C., Ueckermann, E., Frei, R., Frei, K. M., van Aswegen, T., Stirling, C., Reid, M., Clayton, A., Ladenberger, A., Albanese, S., Andersson, M., Baritz, R., Batista, M. J., Bel-Ian, A., Birke, M., Cicchella, D., Demetriades, A., De Vivo, B., De Vos, W. & 74 others, Dinelli, E., Duris, M., Dusza-Dobek, A., Eggen, O. A., Eklund, M., Ernstsen, V., Filzmoser, P., Flight, D. M. A., Forrester, S., Fuchs, M., Fugedi, U., Gilucis, A., Gregorauskiene, V., De Groot, W., Gulan, A., Halamic, J., Haslinger, E., Hayoz, P., Hoffmann, R., Hrvatovic, H., Husnjak, S., Janik, L., Jordan, G., Kaminari, M., Kirby, J., Kivisilla, J., Klos, V., Krone, F., Kwecko, F., Kuti, L., Lima, A., Locutura, J., Lucivjansky, D. P., Mann, A., Mackovych, D., Matschullat, J., McLaughlin, M., Malyuk, B. ,. I., Maquil, R., Meuli, R. G., Mol, G., Negrel, P., Connor, O., Oorts, R. K., Ottesen, R. T., Pasieczna, A., Petersell, W., Ponavic, M., Pramuka, S., Prazeres, C., Rauch, U., Radusinovic, S., Reimann, C., Sadeghi, M., Salpeteur, I., Scanlon, R., Schedl, A., Scheib, A. J., Schoeters, I., Sefcik, P., Sellersjo, E., Skopijak, F., Slaninka, I., Soriano-Disla, J. M., Sorsa, A., Srvkota, R., Stafilov, T., Tarvainen, T., Trendavilov, V., Valera, P., Verougstraete, V., Vidojevic, D., Zissimos, A. & Zomeni, Z., 2019, In: Science of the Total Environment. 672, p. 1033-1044 12 p.

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

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

  19. Published

    Late Paleoproterozoic and Mesoproterozoic magmatism of the Nico Perez Terrane (Uruguay): Tightening up correlations in southwestern Gondwana

    Oriolo, S., Oyhantçabal, P., Konopásek, J., Basei, M. A. S., Frei, Robert, Sláma, J., Wemmer, K. & Siegesmund, S., 2019, In: Precambrian Research. 327, p. 296-313 18 p.

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

  20. Published

    Multi-isotope proveniencing of human remains from a Bronze Age battlefield in the Tollense Valley in northeast Germany

    Price, T. D., Frei, Robert, Brinker, U., Lidke, G., Terberger, T., Frei, K. M. & Jantzen, D., 2019, In: Archaeological and Anthropological Sciences. 11, 1, p. 33-49 17 p.

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

  21. Published

    Chemostratigraphy Across the Cretaceous-Paleogene (K-Pg) Boundary: Testing the Impact and Volcanism Hypotheses

    Sial, A. N., Chen, J., Lacerda, L. D., Frei, Robert, Higgins, J. A., Tewari, V. C., Gaucher, C., Ferreira, V. P., Cirilli, S., Korte, Christoph, Barbosa, J. A., Pereira, N. S. & Ramos, D. S., 2019, Chemostratigraphy Across Major Chronological Boundaries. Wiley, Vol. 240. p. 223-257 35 p. (Geophysical Monograph Series, Vol. 240).

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

  22. Published

    East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat.

    Simonsen, M. F., Baccolo, G., Blunier, Thomas, Borunda, A., Delmonte, B., Frei, Robert, Goldstein, S., Grinsted, Aslak, Kjær, Helle Astrid, Sowers, T., Svensson, Anders, Vinther, Bo Møllesøe, Vladimirova, D., Winckler, G., Winstrup, M. & Vallelonga, P., 3 Oct 2019, In: Nature Communications. 10, 8 p., 4494.

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

  23. Published

    A back-arc origin for the Neoarchean megacrystic anorthosite-bearing Bird River Sill and the associated greenstone belt, Bird River subprovince, Western Superior Province, Manitoba, Canada

    Sotiriou, P., Polat, A., Frei, Robert, Yang, X. M. & van Vessem, J., 2019, In: International Journal of Earth Sciences. 108, 7, p. 2177-2207 31 p.

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

  24. Published

    Petrogenesis and geodynamic setting of the Neoarchaean Haines Gabbroic Complex and Shebandowan greenstone belt, southwestern Superior Province, Ontario, Canada

    Sotiriou, P., Polat, A. & Frei, Robert, 2019, In: Lithos. 324-325, p. 1-19 20 p.

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

  25. Published

    Subtle Cr isotope signals track the variably anoxic Cryogenian interglacial period with voluminous manganese accumulation and decrease in biodiversity

    Xu, L., Frank, A. B., Lehmann, B., Zhu, J., Mao, J., Ju, Y. & Frei, Robert, 2019, In: Scientific Reports. 9

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

  26. 2018
  27. Published

    Highly fractionated chromium isotopes in Mesoproterozoic-aged shales and atmospheric oxygen

    Canfield, D. E., Zhang, S., Frank, A. B., Wang, X., Wang, H., Su, J., Ye, Y. & Frei, Robert, 2018, In: Nature Communications. 9, 11 p., 2871.

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

  28. Published

    Multiproxy geochemical and isotope stratigraphy records of a Neoproterozoic Oxygenation Event in the Ediacaran Sete Lagoas cap carbonate, Bambui Group, Brazil

    Caxito, F. A., Frei, Robert, Uhlein, G. J., Dias, T. G., Árting, T. B. & Uhlein, A., 2018, In: Chemical Geology. 481, p. 119-132 14 p.

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

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