Robert Frei
Professor
Geology
Øster Voldgade 10
1350 København K
- 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
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Post-collisional transition from calc-alkaline to alkaline magmatism during transcurrent deformation in the southernmost Dom Feliciano Belt (Braziliano-Pan African, Uruguay)
Oyhantcabal, P., Siegesmund, S., Wemmer, K., Frei, Robert & Layer, P., 2007, In: Lithos. v, 98, p. 141-159Research output: Contribution to journal › Journal article › Research › peer-review
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Paleo- and Neoproterozoic magmatic and tectonometamorphic evolution of the Isla Cristalina de Rivera (Nico Pérez Terrane, Uruguay)
Oyhantçabal, P., Wagner-Eimer, M., Wemmer, K., Schulz, B., Frei, Robert & Siegesmund, S., 2012, In: International Journal of Earth Sciences. 101, 7, p. 1745-1762 18 p.Research output: Contribution to journal › Journal article › Research › peer-review
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U-Pb age constraints for the La Tuna Granite and Montevideo Formation (Paleoproterozoic, Uruguay): Unravelling the structure of the Rio de la Plata Craton
Pamoukaghlian, K., Gaucher, C., Frei, Robert, Poire, D. G., Chemale, F., Frei, D. & Will, T. M., 2017, In: Journal of South American Earth Sciences. 79, p. 443-458 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The Piedras de Afilar Formation (Neoproterozoic, Uruguay): Sedimentology and provenance of a key unit for SW-Gondwana paleogeography
Pamoukaghlián, K., Gaucher, C., Poiré, D. G. & Frei, Robert, 1 Jun 2021, In: Journal of South American Earth Sciences. 108, 26 p., 103176.Research output: Contribution to journal › Journal article › Research › peer-review
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40Ar/39Ar dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian–Cambrian boundary
Parnell, J., Mark, D. F., Frei, Robert, Fallick, A. E. & Ellam, R. M., Jun 2014, In: Precambrian Research. 246, p. 54-63 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Cr-isotope signature of surface seawater - a global perspective
Paulukat, C. S., Gilleaudeau, G. J., Chernyavskiy, P. & Frei, Robert, 2016, In: Chemical Geology. 444, p. 101-109 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The Behaviour of Chromium Isotopes during the Oxidative Weathering of Ultramafic Rocks
Paulukat, C. S., Døssing, L. N., Mondal, S. K., Vögelin, A. R. & Frei, Robert, 2014.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
- Published
Global Cr-isotope distributions in surface seawater and incorporation of Cr isotopes into carbonate shells
Paulukat, C. S., Frei, Robert, Vögelin, A. R. & Samankassou, E., 2015.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Oxidative release of chromium from Archean ultramafic rocks, its transport and environmental impact – A Cr isotope perspective on the Sukinda valley ore district (Orissa, India)
Paulukat, C. S., Døssing, L. N., Mondal, S. K., Vögelin, A. R. & Frei, Robert, 2015, In: Applied Geochemistry. 59, p. 125-138Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Nd-Sr-Pb isotopic geochemistry of scheelite from the Woxi W-Sb-Au deposit, Eastern Hunan: implicarions for sources and evolution of ore-forming fluids
Peng, B., Frei, Robert & Xianglin, T. T., 2006, In: Acta Geologica Sinica - English Edition. 80, p. 561-570Research output: Contribution to journal › Journal article › Research › peer-review
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Nd-Sr-Pb isotopic constraints on metal and fluid sources in W-Sb-Au mineralization at Woxi and Liaojiaping (Western Hunan, China)
Peng, B. & Frei, Robert, 2004, In: Mineralium Deposita. Vol. 39, p. 313-327Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Carbon stable isotope record in the coral species Siderastrea stellata: A link to the Suess Effect in the tropical South Atlantic Ocean
Pereira, N. S., Sial, A. N., Kilbourne, K. H., Liu, S., Shen, C. -., Ullmann, C. V., Frei, Robert, Korte, Christoph, Kikuchi, R. K. P., Ferreira, V. P. & Braga, B. L. S. S., 2018, In: Palaeogeography, Palaeoclimatology, Palaeoecology - An International Journal for the Geo-Sciences. 497, p. 82-90 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Coral-based climate records from tropical South Atlantic: 2009/2010 ENSO event in C and O isotopes from Porites corals (Rocas Atoll, Brazil)
Pereira, N. S., Sial, A. N., Kikuchi, R. K. P., Ferreira, V. P., Ullmann, C. V., Frei, Robert & Cunha, A. M. C., 2015, In: Anais da Academia Brasileira de Ciencias.. 87, 4, p. 1939-1957 19 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The potential of the coral species Porites astreoides as a paleoclimate archive for the Tropical South Atlantic Ocean
Pereira, N. S., Sial, A. N., Frei, Robert, Ullmann, C. V., Korte, Christoph, Kikuchi, R. K. P., Ferreira, V. P. & Kilbourne, K. H., 2017, In: Journal of South American Earth Sciences. 77, p. 276-285 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Chromium-isotope signatures in scleractinian corals from the Rocas Atoll, Tropical South Atlantic
Pereira, N. S., Vögelin, A. R., Paulukat, C. S., Sial, A. N., Ferreira, V. P. & Frei, Robert, 2016, In: Geobiology. 14, 1, p. 54–67 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Isotope systematics in vein gold from Brusson, Val d'Ayaz (NW Italy). I: Pb/Pb evidence for a Piemonte metaophiolite Au source
Pettke, T. & Frei, Robert, 1996, In: Chemical Geology. 127, p. 11-124Research output: Contribution to journal › Journal article › Research › peer-review
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U, He and Ar isotope systematics in fluid inclusions of vein gold, quartz and carbonates from Brusson, Val d'Ayas (NW Italy): (U+Th)/He dating of gold and isotope tracing
Pettke, T., Frei, Robert, Kamensky, I. L., Kramers, J. D., Tolstikhin, I. N. & Villa, I. M., 1995, In: Boletin de la Sociedad Espanola del Mineralogia. 18, p. 181-182Research output: Contribution to journal › Journal article › Research › peer-review
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Isotope systematics in vein gold from Brusson, Val d'Ayas (NW Italy). 2: (U+Th)/He and K/Ar in native Au and its fluid inclusions
Pettke, T., Frei, Robert, Kramers, J. D. & Villa, I. M., 1997, In: Chemical Geology. 135, p. 173-187Research output: Contribution to journal › Journal article › Research › peer-review
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Isotope systematics in vein gold from Brusson, Val d'Ayas (NW Italy), 1. Pb/Pb evidence for a Piemonte metaophiolite Au source
Pettke, T. & Frei, Robert, 10 Jan 1996, In: Chemical Geology. 127, 1-3, p. 111-124 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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New age (ca. 2970 Ma), mantle source composition and geodynamic constraints on the Archean Fiskenæsset anorthosite complex, SW Greenland.
Polat, A., Frei, Robert, Scherstén, A. & Appel, P. W. U., 2010, In: Chemical Geology. 277, 1-2, p. 1-20Research output: Contribution to journal › Journal article › Research › peer-review
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Plagiogranitic ocelli in the pillowlavas of the Eoarchean (3.7-3.8 Ga) Isua greenstone belt, SW Greenland.
Polat, A., Appel, P. W. U. & Frei, Robert, 2007, In: Geochim. Cosmochim.. Acta 71, Supplement 1, p. A800Research output: Contribution to journal › Conference abstract in journal › Research
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Field and geochemical characterisitics of the Mesoarchean (~3075 ma) Ivisaartoq greenstone belt, southern West Greenland: Evidence for seafloor hydrothermal alteration in a supra-subduction oceanic crust.
Polat, A., Appel, P. W. U., Frei, Robert, Pan, Y., Dilek, Y., Ordonez-Calderon, J. C., Fryer, B., Hollis, J. A. & Raith, J. G., 2006, In: Gondwana Research. 11, p. 69-91Research output: Contribution to journal › Journal article › Research › peer-review
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The origin and compositions of Mesoarchean oceanic crust: evidence from the 3075 Ma Ivisaartoq greenstone belt, southern West Greenland
Polat, A., Frei, Robert, Appel, P. W. U., Dilek, Y., Fryer, B., Ordonez-Calderon, J. C. & Yang, Z., 2008, In: Lithos. 100, p. 293-321Research output: Contribution to journal › Journal article › Research › peer-review
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An overview of the lithological and geochemical characteristics of the Mesoarchean (ca. 3075) Ivisaartoq greenstone belt, southern West Greenland
Polat, A., Frei, Robert, Appel, P. W. U., Fryer, B., Dilek, Y. & Ordonez-Calderon, J. C., 2008, In: Geological Society of America. Special Papers. 440, p. 51-76Research output: Contribution to journal › Journal article › Research › peer-review
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The origin of early Archean banded iron formations and of continental crust, Isua, southern West Greenland
Polat, A. & Frei, Robert, 2005, In: Precambrian Research. Vol. 138, p. 151-175Research output: Contribution to journal › Journal article › Research › peer-review
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The origin of geochemical trends and Eoarchean (ca. 3700 Ma) zircons in Mesoarchean (ca. 3075 Ma) ocelli-hosting pillow basalts, Ivisaartoq greenstone belt, SW Greenland: evidence for crustal contamination versus crustal recycling.
Polat, A. B., Frei, Robert, Fryer, B. & Appel, P. W. U., 2009, In: Chemical Geology. 268, p. 248-271Research output: Contribution to journal › Journal article › Research › peer-review
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Trace element systematics of the Neoarchean Fiskenæsset anorthosites and associated rocks, SW Greenland: Evidence for a magmatic arc origin.
Polat, A. B., Appel, P. W. U., Fryer, B., Windley, B., Frei, Robert, Samson, I. M. & Huang, H., 2009, In: Precambrian Research. 175, p. 87-115Research output: Contribution to journal › Journal article › Research › peer-review
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Petrology and geochemistry of the Tasse mantle xenoliths of the Canadian Cordillera: A record of Archean to Quaternary mantle growth, metasomatism, removal, and melting
Polat, A., Frei, Robert, Longstaffe, F. J., Thorkelson, D. J. & Friedman, E., 2018, In: Tectonophysics. 737, p. 1-26 26 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Anatomy of a Neoarchean continental arc-backarc system in the Cross Lake-Pipestone Lake region, northwestern Superior Province, Canada
Polat, A., Frei, Robert, Deng, H., Yang, X. & Sotiriou, P., 2022, In: Precambrian Research. 370, 34 p., 106556.Research output: Contribution to journal › Journal article › Research › peer-review
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An overview of anorthosite-bearing layered intrusions in the Archaean craton of southern West Greenland and the Superior Province of Canada: implications for Archaean tectonics and the origin of megacrystic plagioclase
Polat, A., Longstaffe, F. J. & Frei, Robert, 1 Jan 2018, In: Geodinamica Acta. 30, 1, p. 84-99 16 p.Research output: Contribution to journal › Review › Research › peer-review
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Petrogenetic and geodynamic origin of the Neoarchean Doré Lake Complex, Abitibi subprovince, Superior Province, Canada
Polat, A., Frei, Robert, Longstaffe, F. J. & Woods, R., 2018, In: International Journal of Earth Sciences. 107, 3, p. 811-843 33 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Extreme element mobility during transformation of Neoarchean (ca. 2.7 Ga) pillow basalts to a Paleoproterozoic (ca. 1.9 Ga) paleosol, Schreiber Beach, Ontario, Canada
Polat, A., Longstaffe, F., Weisener, C., Fryer, B., Frei, Robert & Kerrich, R., 2012, In: Chemical Geology. 326-327, p. 145-173 29 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Geochemistry of ultramafic rocks and hornblendite veins in the Fiskenæsset layered anorthosite complex, SW Greenland: evidence for hydrous upper mantle in the Archean
Polat, A., Fryer, B. J., Samson, I. M., Weisener, C., Appel, P. W. U., Frei, Robert & Windley, B. F., 2012, In: Precambrian Research. 214-215, p. 124-153 30 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Geological processes defining the formation of plumasite-type corundum in the Paleoproterozoic Isertoq Terrane, South-East Greenland
Poulsen, Majken Djurhuus, Keulen, N., van Hinsberg, V. J., Kolb, J., Frei, Robert & Thomsen, T. B., 2023, In: Precambrian Research. 385, 23 p., 106940.Research output: Contribution to journal › Journal article › Research › peer-review
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Fedtsten - Godthåbsfjordens skjulte ressource
Poulsen, Majken Djurhuus, Knudsen, R. J., Keulen, N., Thorsøe, K. & Frei, Robert, 2018, In: Tidsskriftet Grønland. 4, 16 p.Research output: Contribution to journal › Journal article › Communication
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Isotopic studies of human skeletal remains from a sixteenth to seventeenth century AD churchyard in Campeche, Mexico: diet, place of origin, and age
Price, T. D., Burton, J. H., Cucina, A., Zabala, P., Frei, Robert, Tykot, R. H. & Tiesler, V., 2012, In: Current Anthropology. 53, 4, p. 396-433Research output: Contribution to journal › Journal article › Research › peer-review
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Origins of inhabitants from the 16th century Sala (Sweden) silver mine cemetery – a lead isotope perspective
Price, T. D., Frei, Robert, Bäckström, Y., Frei, K. M. & Ingvarsson-Sundstrom, A., 2017, In: Journal of Archaeological Science. 80, p. 1-13 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Elemental mapping using proton-induced X-rays
Przybylowicz, W. J., Mesjasz-Pryzybylowicz, J., Pineda, C. A., Churms, C. L., Ryan, C. G., Prozesky, V. M., Frei, Robert, Slabbert, J. P., Padayachee, J. & Reimold, W. U., 2001, In: X-Ray Spectrometry. 30, p. 156-163Research output: Contribution to journal › Journal article › Research › peer-review
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Towards a calibrated astronomical timescale for the Mid Ordovician
Rasmussen, Christian Mac Ørum, Thibault, Nicolas Rudolph, Stouge, Svend, Siggaard-Andersen, M. L., Costa, M., Schovsbo, N., Calner, M., Dahlqvist, P., Korte, Christoph, Frei, Robert, Storey, M., Connelly, J., Pedersen, G. K., Rasmussen, B. W., Rasmussen, J. A. & Nielsen, A. T., 2016, p. 2812 .Research output: Contribution to conference › Conference abstract for conference › Research
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Integrating bed-by-bed palaeobiological and geochemical proxies through the onset of the Great Ordovician Biodiversification Event on Baltica
Rasmussen, Christian Mac Ørum, Ullmann, C. V., Jakobsen, K. G., Lindskog, A., Hansen, J., Hansen, T., Eriksson, M. E., Dronov, A., Frei, Robert, Korte, Christoph, Nielsen, Arne Thorshøj & Harper, D. A. T., 2014, p. 81.Research output: Contribution to conference › Conference abstract for conference › Research
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Tales from Ginderup Mound in Thisted County, Denmark: Further Investigations of Female Mobility in the Nordic Bronze Age
Reiter, S. S., Møller, N. A., Jørkov, M L S, Bech, J., Frei, Robert & Frei, Karin Margarita, 2023, In: Danish Journal of Archaeology. 12, 1, p. 1-25Research output: Contribution to journal › Journal article › Research › peer-review
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New 207Pb-206Pb and 40Ar-39Ar ages from SW Montana, USA: constraints on the Proterozoic and Archean tectonic and depositional history of the Wyoming Province
Roberts, H., Dahl, P., Kelly, S. & Frei, Robert, 2002, In: Precambrian Research. 117, p. 119-143Research output: Contribution to journal › Journal article › Research › peer-review
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Redox effect on the Cr isotope proxy: transitional signal of associated cap-carbonates, BIF and black shale, Chuos Formation (Namibia)
Rodler, A., Frei, Robert & Gaucher, C., 2013.Research output: Contribution to conference › Conference abstract for conference › Research
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Multiproxy isotope constraints on ocean compositional changes across the late Neoproterozoic Ghaub glaciation, Otavi Group, Namibia
Rodler, A., Frei, Robert, Gaucher, C., Korte, Christoph, Rosing, Salik Anders & Germs, G. J. B., 2017, In: Precambrian Research. 298, p. 306-324 19 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Chromium isotope stratigraphy of Ediacaran cap dolostones, Doushantuo Formation, South China
Rodler, A., Hohl, S. V., Guo, Q. & Frei, Robert, 15 Oct 2016, In: Chemical Geology. 436, p. 24-34Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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