Robert Frei
Professor
Geology
Øster Voldgade 10
1350 København K
- Published
Stable Chromium isotopes as tracer for paleoclimatic processes recorded in marine carbonates of the Late Neoproterozoic
Rodler, A., Frei, Robert & Gaucher, C., 2012.Research output: Contribution to conference › Conference abstract for conference › Research
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Chromium isotope record of the Otavi Group, Namibia
Rodler, A., Frei, Robert, Gaucher, C., Vögelin, A. R., Ullmann, C. V. & Korte, Christoph, 2013, In: Mineralogical Magazine. 77, 5, p. 2075 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Cr(VI)-calcite coprecipitation: implications for the use of Cr isotopes as paleoclimatic proxy
Rodler, A., Dietzel, M. & Frei, Robert, 2013.Research output: Contribution to conference › Conference abstract for conference › Research
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A metamorphosed, early Archean chromitite from West Greenland: implications for the genesis of Archean anothositic chromitites
Rollinson, H., Appel, P. & Frei, Robert, 2002, In: Journal of Petrology. 43, p. 2143-2170Research output: Contribution to journal › Journal article › Research › peer-review
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Petrogenesis of the late Archean Pillow Basalts from the Chitradurga greenstone belt, Western Dharwar Craton (southern India)
Rose, R., Mukherjee, R., Frei, Robert, Mondal, S. K. & Lingadevaru, M., 2022, In: Journal of Earth System Science. 131, 2, 26 p., 95.Research output: Contribution to journal › Journal article › Research › peer-review
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Getting out of the extreme: Possible indications of Pre-3700 Ma oxygenic photosynthesis from Isua, West Greenland. J. Conf. Abstr
Rosing, Minik Thorleif & Frei, Robert, 2000.Research output: Contribution to conference › Conference abstract for conference › Research
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"U-rich Archaean sea-floor sediments from Greenland-indications of >3700 Ma Oxygenic photosynthesis"
Rosing, Minik Thorleif & Frei, Robert, 2004, In: Earth and Planetary Science Letters. 217, p. 237-244 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Scrambling of isotopic messages from our earliest ancestors: 13C variations in biogenic reduced carbon from the >3700 Ma Isua supracrustals, West Greenland
Rosing, Minik Thorleif & Frei, Robert, 1999, In: Journal of Conference Abstracts. 4(1), p. 259Research output: Contribution to journal › Conference abstract in journal › Research
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Late Archaean metasomatism and kyanite formation in the >3700 Ma Isua supracrustals, West Greenland
Rosing, Minik Thorleif & Frei, Robert, 1999, In: Journal of Conference Abstracts. 4(1), p. 144Research output: Contribution to journal › Conference abstract in journal › Research
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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 journal › Journal article › Research › peer-review
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Large Igneous Province volcanism, ocean anoxia and marine mass extinction
Ruhl, M., Bjerrum, Christian J., Canfield, D., Korte, Christoph, Stemmerik, L. & Frei, Robert, 2013, In: Mineralogical Magazine. 77, 5, p. 2097 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Ocean anoxia and large igneous provinces
Ruhl, M., Bjerrum, Christian J., Canfield, D. E., Korte, Christoph, Stemmerik, L. & Frei, Robert, 2013, In: Geophysical Research Abstracts. 15, 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Investigating sheep mobility at Montale, Italy, through strontium isotope analyses
Sabatini, S., Frei, K. M., De Grossi Mazzorin, J., Cardarelli, A., Pellacani, G. & Frei, Robert, Feb 2022, In: Journal of Archaeological Science: Reports. 41, 12 p., 103298.Research output: Contribution to journal › Journal article › Research › peer-review
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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. 113-121Research output: Contribution to journal › Journal article › Research › peer-review
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Anthropogenic contributions to atmospheric Hg, Pb and As deposition recorded by peat cores from southern Greenland and Denmark dated using the 14C "bomb pulse curve"
Shotyk, W., Goodsite, M. E., Roos-Barraclough, F., Frei, Robert, Heinemeier, J., Asmund, G., Lohse, C. & Hansen, T. S., 2003, In: Geochimica et Cosmochimica Acta. 67, p. 3991-4011Research output: Contribution to journal › Journal article › Research › peer-review
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Geochemistry of the peat bog at Etang de la Gruère, Jura Mountains, Switzerland, and its record of atmospheric pb and lithogenic trace metals (Sc, Ti, Y, Zr, and REE) since 12,370 14C yr bp
Shotyk, W., Weiss, D., Kramers, J. D., Frei, Robert, Cheburkin, A. K., Gloor, M. & Reese, S., 14 Aug 2001, In: Geochimica et Cosmochimica Acta. 65, 14, p. 2337-2360 24 p.Research output: Contribution to journal › Journal article › Research › peer-review
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A complete history of atmospheric lead deposition from 12,370 14C yr BP to the present recorded in a peat bog profile, Jura Mountains, Switzerland
Shotyk, W., Weiss, D., Appleby, P. G., Cheburkin, A. K., Frei, Robert, Gloor, M., Kramers, J. D., Reese, S. & von der Knaap, W. O., 1998, In: Science. 281/5389, p. 1635-1640Research output: Contribution to journal › Journal article › Research › peer-review
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Geochemistry of the peat bog at Étang de la Gruyère, Jura Mountains, Switzerland, and its record of atmospheric Pb and lithogenic trace metals (Sc, Ti, Y, and REE) since 1237014C yr BP
Shotyk, W., Weiss, D., Kramers, J. D., Frei, Robert, Cheburkin, A. K., Gloor, M. & Reese, S., 2001, In: Geochimica et Cosmochimica Acta. 65, p. 2337-2360Research output: Contribution to journal › Journal article › Research › peer-review
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History of Athmospheric Lead Deposition Since 12'370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland
Shotyk, W., Weiss, D., Appleby, P. G., Cheburkin, A. K., Frei, Robert, Gloor, M., Kramers, J. D., Reese, S. & Van der Kaap, W. O., 1998, In: Kexue (Shanghai). 281, p. 1635-1640Research output: Contribution to journal › Journal article › Research
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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. 60-81Research output: Contribution to journal › Journal article › Research › peer-review
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High-resolution stable isotope stratigraphy of the upper Cambrian and Ordovician in the Argentine Precordillera: carbon isotope excursions and correlations
Sial, A. N., Peralta, S., Gaucher, C., Toselli, A. J., Ferreira, V. P., Frei, Robert, Parada, M. A., Pimentel, M. M. & Pereira, N. S., 2013, In: Gondwana Research. 24, 1, p. 330-348 19 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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Reply to comments by Sanjay K. Mukhopadhyay, Sucharita Pal, J. P. Shrivastava on the paper by Sial et al. (2016) Mercury enrichments and Hg isotopes in Cretaceous-Paleogene boundary successions: Links to volcanism and palaeoenvironmental impacts. Cretaceous Research 66, 60-81
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., 2017, In: Cretaceous Research. 76, p. 84-88 5 p.Research output: Contribution to journal › Comment/debate › Research › peer-review
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Algoma-type Neoproterozoic BIFs and related marbles in the Seridó Belt (NE Brazil): REE, C, O, Cr and Sr isotope evidence
Sial, A. N., Campos, M. S., Gaucher, C., Frei, Robert, Ferreira, V. P., Nascimento, R. C., Nascimento, R. C., Pereira, N. S. & Rodler, A., 2015, In: Journal of South American Earth Sciences. 61, p. 33-52 20 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Corg, N and Hg-isotopes and Hg chemostratigraphy in the Late Ordovician–early Silurian Transition, Argentine Precordillera
Sial, A. N., Chen, J., Peralta, S., Gaucher, C., Korte, Christoph, Frei, Robert, Ferreira, V. P., Drude, L., Lacerda, D., Barbosa, J. A., Pereira, N. S., Ricardo, P., Riedel, R. & Gomez, J. C., 2023. 1 p.Research output: Contribution to conference › Poster › Research › peer-review
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High-resolution Hg Chemostratigraphy: A contribution to the distinction of chemical fingerprints of the Deccan volcan ism and Cretaceous−Paleogene Boundary impact event
Sial, A. N., Chen, J., Lacerda, L. D., Peralta, S., Gaucher, C., Frei, Robert, Cirilli, S., Ferreira, V. P., Marquillas, R. A., Barbosa, J. A., Pereira, N. S. & Belmino, I. K. C., Nov 2014, In: Palaeogeography, Palaeoclimatology, Palaeoecology - An International Journal for the Geo-Sciences. 414, p. 98-115 17 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Time constraints on the tectonic evolution of the eastern Sierras Pampeanas (Central Argentina).
Siegesmund, S., Steenken, A., Martino, R. D., Wemmer, K., Lopez de Luchi, M. G., Frei, Robert, Presnyakov, S. & Guereschi, A., 2010, In: International Journal of Earth Sciences. 99, 6, p. 1199-1226Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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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
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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
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Geochemistry of Archean anorthosite-bearing layered intrusions
Sotiriou, P., Polat, A., Kusky, T., Windley, B. F., Frei, Robert & Yang, X., 2024, In: Earth-Science Reviews. 249, 25 p., 104654.Research output: Contribution to journal › Journal article › Research › peer-review
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Neoproterozoic to Early Palaeozoic events in the Sierra de San Luis: implications for the Famatinian geodynamics in the Eastern Sierras Pampeanas (Argentina)
Steenken, A., Siegesmund, S., Lopez de Luchi, M., Frei, Robert & Wemmer, K., 2006, In: Geological Society of London Special Publications. 163, p. 965-982Research output: Contribution to journal › Journal article › Research › peer-review
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A lead isotope study of an Archaean gold prospect in the Attu region, Nagssugtoqidian orogen, West Greenland
Stendal, H., Frei, Robert & Stensgaard, B. M., 2006, In: GEOLOGICAL SURVEY OF DENMARK AND GREENLAND BULLETIN. 11, p. 53-60Research output: Contribution to journal › Journal article › Research › peer-review
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207Pb-206Pb dating of magnetite, monazite and allanite in the central and northern Nagssugtoqidian orogen, West Greenland
Stendal, H., Secher, K. & Frei, Robert, 2006, In: GEOLOGICAL SURVEY OF DENMARK AND GREENLAND BULLETIN. 11, p. 101-114Research output: Contribution to journal › Journal article › Research › peer-review
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Pan-African(?) rutile in the Yaoundé region, Cameroon
Stendal, H., Toteu, S. F., Frei, Robert, Njel, U. O., Konnerup-Madsen, J., Bassahak, J., Penaye, J. & Nni, J., 2004, 20th Colloquium of African geology, Orleans, France, 2-7 June 2004. Abstract volume. Orleans, p. 385Research output: Chapter in Book/Report/Conference proceeding › Preface/postscript › Research
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Provenance of rutile from the Yaounde region, Neoproterozoic Pan-African belt in southern Cameroon (Central Africa)
Stendal, H., Toteu, S. F., Frei, Robert, Penaye, J., Njel, U. O., Bassahak, J., Nni, J., Kankeu, B., Ngako, V. & Hell, J. V., 2006, In: Journal of African Earth Sciences. 44, p. 443-458Research output: Contribution to journal › Journal article › Research › peer-review
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Lead isotopic results of the Mpanda Mineral Field mineralizations (SW Tanzania)
Stendal, H., Frei, Robert, Muhongo, S., Rasmussen, T. M., Mnali, S., Petro, F. & Temu, E. B., 2004, In: Journal of African Earth Sciences. Vol. 38, p. 437-447Research output: Contribution to journal › Journal article › Research › peer-review
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The Palaeoproterozoic Kangerluluk gold-copper mineralization (Southeast Greenland): Pb and Nd isotopic constraints on its timing and genesis
Stendal, H., Frei, Robert, Hamilton, M. A. & Mueller, W. U., 2001, In: Mineralium Deposita. 36, p. 177-188Research output: Contribution to journal › Journal article › Research › peer-review
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Gold occurrences and lead isotopes in Ketilidian Mobile Belt, South Greenland
Stendal, H. & Frei, Robert, 2000, In: Transactions Institution of Mining and Metallurgy (Sektion B). 109, p. B6-B13Research output: Contribution to journal › Journal article › Research › peer-review
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3.9 Ga pillow basalts from Isua, Greenland: Pb isotopic evidence.
Storey, Michael, Krogstad, E. J., Frei, Robert, Albarede, F. & Rosing, Minik Thorleif, 1998, publisher. American Geophysical Union, 932 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
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The Neoarchaean Storø Supracrustal Belt, Nuuk region, southern West Greenland: An arc-related basin with continent-derived sedimentation
Szilas, Kristoffer, van Gool, J. A. M., Scherstén, A. & Frei, Robert, 2014, In: Precambrian Research. 247, p. 208–222 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Complex calc-alkaline volcanism recorded in Mesoarchaean supracrustal belts north of Frederikshåb Isblink, southern West Greenland: implications for subduction zone processes in the early earth
Szilas, Kristoffer, Hoffmann, J. E., Scherstén, A., Rosing, Minik Thorleif, Windley, B. F., Kokfelt, T. F., Keulen, N., van Hinsberg, V. J., Næraa, T., Frei, Robert & Münker, C., 2012, In: Precambrian Research. 208-211, p. 90-123 34 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Remnants of arc-related Mesoarchaean oceanic crust in the Tartoq Group of SW Greenland
Szilas, Kristoffer, van Hinsberg, V. J., Kisters, A. F. M., Hoffmann, J. E., Windley, B. F., Kokfelt, T. F., Scherstén, A., Frei, Robert, Rosing, Minik Thorleif & Münker, C., Mar 2013, In: Gondwana Research. 23, 2, p. 436-451 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Origin of Mesoarchaean arc-related rocks with boninite/komatiite affinities from southern West Greenland
Szilas, Kristoffer, Næraa, T., Scherstén, A., Stendal, H., Frei, Robert, van Hinsberg, V. J., Kokfelt, T. F. & Rosing, Minik Thorleif, 2012, In: Lithos. 144-145, p. 24-39 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Petrogenesis of Delihalil Quaternary basaltic volcanism, South Anatolia, Turkey
Temel, A., Frei, Robert, Alpaslan, M. & Kurt, M. A., 2007, In: Geochim. Cosmochim.. Acta 71, Supplement 1, p. A1012Research output: Contribution to journal › Conference abstract in journal › Research
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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 journal › Journal article › Research › peer-review
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Chemical and isotopic architecture of the belemnite rostrum
Ullmann, C. V., Frei, Robert, Korte, Christoph & Hesselbo, S. P., 5 Jun 2015, In: Geochimica et Cosmochimica Acta. 159, p. 231-243 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Geochemical signatures in Late Triassic brachiopods from New Caledonia
Ullmann, C. V., Campbell, H. J., Frei, Robert & Korte, Christoph, Oct 2014, In: New Zealand Journal of Geology and Geophysics. 57, 4, p. 420-431 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Element/Ca, C and O isotope ratios in modern brachiopods: Species-specific signals of biomineralization
Ullmann, C. V., Frei, Robert, Korte, Christoph & Lüter, C., 2017, In: Chemical Geology. 460, p. 15-24 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The geochemistry of modern calcareous barnacle shells and applications for palaeoenvironmental studies
Ullmann, C. V., Gale, A. S., Haggett, J., Wray, D., Frei, Robert, Korte, Christoph, Broom-Fendley, S., Littler, K. & Hesselbo, S. P., 2018, In: Geochimica et Cosmochimica Acta. 243, p. 149-168 20 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Reading the record: Understanding heterogeneity in macrofossil geochemistry
Ullmann, C. V., Frei, Robert, Korte, Christoph & Hesselbo, S. P., 2015, p. p. 375 .Research output: Contribution to conference › Conference abstract for conference › Research
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Barnacles – recorders of environmental conditions with unique geochemical signatures
Ullmann, C. V., Gale, A., Korte, Christoph, Frei, Robert, Huggett, J. & Wray, D., 2017, In: Geophysical Research Abstracts. 19, 6134.Research output: Contribution to journal › Conference abstract in journal › Research › peer-review
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Oxygen and carbon isotope and Sr/Ca signatures of high-latitude Permian to Jurassic calcite fossils from New Zealand and New Caledonia
Ullmann, C. V., Campbell, H. J., Frei, Robert & Korte, Christoph, 1 Oct 2016, In: Gondwana Research. 38, p. 60-73Research output: Contribution to journal › Journal article › Research › peer-review
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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 conference › Conference abstract for conference › Research
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Partial diagenetic overprint of late jurassic belemnites from New Zealand: implications for the preservation potential of δ7Li values in calcite fossils
Ullmann, C. V., Campbell, H. J., Frei, Robert, Hesselbo, S. P., Pogge von Strandmann, P. A. E. & Korte, Christoph, 2013, In: Geochimica et Cosmochimica Acta. 120, p. 80-96 17 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Macrofossil Geochemistry: Palaeoenvironmental application
Ullmann, C. V., Pereira, N. S., Frei, Robert & Korte, Christoph, 2014, p. 32.Research output: Contribution to conference › Conference abstract for conference › Research
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Geochemistry of the belemnite rostrum: Genesis and diagenesis
Ullmann, C. V., Frei, Robert, Korte, Christoph & Hesselbo, S. P., 2015, p. 3203.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Preservation potential of δ7Li values in Mesozoic calcite fossils
Ullmann, C. V., Campbell, H. J., Frei, Robert, Hesselbo, S. P., Pogge von Strandmann, P. A. E. & Korte, Christoph, 2013, In: Mineralogical Magazine. 77, 5, p. 2376Research output: Contribution to journal › Conference abstract in journal › Research › peer-review
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Chemostratigraphy of early Ediacaran carbonate rocks of the Cachoeirinha Group (Northeastern Brazil): Implications for paleonvironmental conditions and atmospheric oxygenation
Usma, C. D., Sial, A. N., Ferreira, V. P., Gaucher, C. & Frei, Robert, 2024, In: Journal of South American Earth Sciences. 134, 17 p., 104744.Research output: Contribution to journal › Journal article › Research › peer-review
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Ediacaran banded iron formations and carbonates of the Cachoeirinha Group of NE Brazil: Paleoenvironment and paleoredox conditions
Usma, C. D., Sial, A. N., Ferreira, V. P., Gaucher, C. & Frei, Robert, 1 Aug 2021, In: Journal of South American Earth Sciences. 109, 6 p., 103282.Research output: Contribution to journal › Journal article › Research › peer-review
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Geochemical characteristics of the Quaternary volcanic rocks from Hatay region, Southern Turkey: Evidence for lithospheric mantle source. Geochim
Varol, E., Frei, Robert, Alpaslan, M., Kurt, M. A. & Temmel, A., 2007, In: Geochim. Cosmochim.. Acta 71, Supplement 1, p. A1059Research output: Contribution to journal › Conference abstract in journal › Research
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Timing between granitoid emplacement and associated gold mineralization: examples from the ca. 2.7 Ga Harare-Shamva Greenstone Belt, Northern Zimbabwe
Vinyu, M. L., Frei, Robert, Frei, Robert & Jelsma, H. A., 1996, In: Canadian Journal of Earth Sciences. 33, 7, p. 981-992Research output: Contribution to journal › Journal article › Research › peer-review
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Cerium Isotope Fractionation during Oxidative Precipitation.
Weber, T., Frei, Robert, Rosing, Minik Thorleif, Canfield, D., Dideriksen, K., Nedel, S., Stipp, S. L. S., Telouk, P. & Albarede, F., 2009. 1 p.Research output: Contribution to conference › Conference abstract for conference › Research
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Assessing Mass-dependent Isotope Fractionation of Cerium
Weber, T., Frei, Robert & Rosing, Minik Thorleif, 2008, In: EOS : Transactions. 53Research output: Contribution to journal › Conference abstract in journal › Research
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A transient swing to higher oxygen levels in the atmosphere and oceans at similar to 1.4 Ga
Wei, W., Frei, Robert, Klaebe, R., Tang, D., Wei, G., Li, D., Tian, L., Huang, F. & Ling, H., 2021, In: Precambrian Research. 354, 10 p., 106058.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Redox condition in the Nanhua Basin during the waning of the Sturtian glaciation: A chromium-isotope perspective
Wei, W., Frei, Robert, Klaebe, R., Li, D., Wei, G. & Ling, H., 2018, In: Precambrian Research. 319, p. 198-210 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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 journal › Journal article › Research › peer-review
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Oxygenation variations in the atmosphere and shallow seawaters of the Yangtze Platform during the Ediacaran Period: Clues from Cr-isotope and Ce-anomaly in carbonates
Wei, W., Frei, Robert, Gilleaudeau, G. J., Li, D., Wei, G., Chen, X. & Ling, H., 2018, In: Precambrian Research. 313, p. 78-90 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Priscoan (4.00-4.03 Ga) orthogneisses from northwestern Canada - by S.A. Bowring and I.S. Williams (2000): discussion
Whitehouse, M., Nägler, T. F., Moorbath, S., Kramers, J. D., Kamber, B. S. & Frei, Robert, 2001, In: Contributions to Mineralogy and Petrology. 141, p. 248-250Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Priscoan “4.00-4.03 Ga” orthogeneisses from northwestern Canada - by Samuel A. Bowring and Ian S. Williams: Discussion
Whitehouse, M. J., Nagler, T. F., Moorbath, S., Kramers, J. D., Kambler, B. S. & Frei, Robert, 1 Jan 2001, In: Contributions to Mineralogy and Petrology. 141, 2, p. 248-250 3 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- Published
Geochemistry, Nd, Pb and Sr isotope systematics, and U-Pb zircon ages of the Neoarchean Bad Vermilion Lake greenstone belt and spatially associated granitic rocks, western Superior Province, Canada
Wu, T., Polat, A., Frei, Robert, Fryer, B. J., Yang, K. & Kusky, T., Sep 2016, In: Precambrian Research. 282, p. 21-51Research output: Contribution to journal › Journal article › Research › peer-review
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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. 9Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Generation of continental crust in the northern part of the Borborema Province, northeastern Brazil, from Archaean to Neoproterozoic
de Souza, Z. S., Kalsbeek, F., Deng, X., Frei, Robert, Kokfelt, T. F., Dantas, E. L., Li, J., Pimentel, M. M. & Galindo, A. C., Jul 2016, In: Journal of South American Earth Sciences. 68, p. 68-96Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Strong positive fractionation of chromium isotopes in iron formation of the Jacadigo Group (Brazil) – A link to enhanced atmospheric oxygenation during the Late Neoproterozoic
Árting, T. B., Boggiani, P. C., Gaucher, C., Fernandes, H. A. & Frei, Robert, 2023, In: Gondwana Research. 124, p. 39-60Research output: Contribution to journal › Journal article › Research › peer-review
ID: 11756
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Large Igneous Province volcanism, ocean anoxia and marine mass extinction
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Mapping human mobility during the third and second millennia BC in present-day Denmark
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Tracing the dynamic life story of a Bronze Age Female
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