Robert Frei
Robert Frei
Professor of Geochemistry and Isotope Geology
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History of Atmospheric Lead Deposition Since 12,370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland
W Shotyk, D Weiss, PG Appleby, AK Cheburkin, R Frei, M Gloor, ...
Science 281 (5383), 1635-1640, 1998
Fluctuations in Precambrian atmospheric oxygenation recorded by chromium isotopes
R Frei, C Gaucher, SW Poulton, DE Canfield
Nature 461 (7261), 250-253, 2009
Atmospheric oxygenation three billion years ago
SA Crowe, LN Dřssing, NJ Beukes, M Bau, SJ Kruger, R Frei, ...
Nature 501 (7468), 535-538, 2013
Tracing the Indian Ocean mantle domain through time: isotopic results from old West Indian, East Tethyan, and South Pacific seafloor
JJ Mahoney, R Frei, MLG Tejada, XX Mo, PT Leat, TF Nägler
Journal of Petrology 39 (7), 1285-1306, 1998
Geochemistry of the peat bog at Etang de la Gručre, Jura Mountains, Switzerland, and its record of atmospheric Pb and lithogenic trace metals (Sc, Ti, Y, Zr, and REE) since 12 …
W Shotyk, D Weiss, JD Kramers, R Frei, AK Cheburkin, M Gloor, S Reese
Geochimica et Cosmochimica Acta 65 (14), 2337-2360, 2001
U-rich Archaean sea-floor sediments from Greenland–indications of> 3700 Ma oxygenic photosynthesis
MT Rosing, R Frei
Earth and Planetary Science Letters 217 (3-4), 237-244, 2004
New Lu–Hf and Pb–Pb age constraints on the earliest animal fossils
GH Barfod, F Albarčde, AH Knoll, S Xiao, P Télouk, R Frei, J Baker
Earth and Planetary Science Letters 201 (1), 203-212, 2002
Anthropogenic contributions to atmospheric Hg, Pb and As accumulation recorded by peat cores from southern Greenland and Denmark dated using the 14C “bomb pulse curve”
W Shotyk, ME Goodsite, F Roos-Barraclough, R Frei, J Heinemeier, ...
Geochimica et Cosmochimica Acta 67 (21), 3991-4011, 2003
The geographic distribution of strontium isotopes in Danish surface waters–A base for provenance studies in archaeology, hydrology and agriculture
KM Frei, R Frei
Applied geochemistry 26 (3), 326-340, 2011
Unraveling the record of successive high grade events in the Central Zone of the Limpopo Belt using Pb single phase dating of metamorphic minerals
L Holzer, R Frei, JM Barton Jr, JD Kramers
Precambrian Research 87 (1-2), 87-115, 1998
Tracing the dynamic life story of a Bronze Age Female
KM Frei, U Mannering, K Kristiansen, ME Allentoft, AS Wilson, I Skals, ...
Scientific reports 5 (1), 10431, 2015
Source heterogeneity for the major components of∼ 3.7 Ga Banded Iron Formations (Isua Greenstone Belt, Western Greenland): Tracing the nature of interacting water masses in …
R Frei, A Polat
Earth and Planetary Science Letters 253 (1-2), 266-281, 2007
Oxygenation of the mid-Proterozoic atmosphere: clues from chromium isotopes in carbonates
GJ Gilleaudeau, R Frei, AJ Kaufman, LC Kah, K Azmy, JK Bartley, ...
Geochemical Perspectives Letters, 2016
The genesis of Archaean chromitites from the Nuasahi and Sukinda massifs in the Singhbhum Craton, India
SK Mondal, EM Ripley, C Li, R Frei
Precambrian Research 148 (1-2), 45-66, 2006
Post-collisional transition from calc-alkaline to alkaline magmatism during transcurrent deformation in the southernmost Dom Feliciano Belt (Braziliano–Pan-African, Uruguay)
P Oyhantçabal, S Siegesmund, K Wemmer, R Frei, P Layer
Lithos 98 (1-4), 141-159, 2007
Single mineral PbPb dating
R Frei, BS Kamber
Earth and Planetary Science Letters 129 (1-4), 261-268, 1995
Onset of main Phanerozoic marine radiation sparked by emerging Mid Ordovician icehouse
CMŘ Rasmussen, CV Ullmann, KG Jakobsen, A Lindskog, J Hansen, ...
Scientific Reports 6 (1), 18884, 2016
Distribution of platinum-group elements and Os isotopes in chromite ores from Mayarí-Baracoa Ophiolitic Belt (eastern Cuba)
F Gervilla, JA Proenza, R Frei, JM González-Jiménez, CJ Garrido, ...
Contributions to Mineralogy and Petrology 150, 589-607, 2005
The behavior of molybdenum and its isotopes across the chemocline and in the sediments of sulfidic Lake Cadagno, Switzerland
TW Dahl, AD Anbar, GW Gordon, MT Rosing, R Frei, DE Canfield
Geochimica et Cosmochimica Acta 74 (1), 144-163, 2010
Reduction of hexavalent chromium by ferrous iron: A process of chromium isotope fractionation and its relevance to natural environments
LN Dřssing, K Dideriksen, SLS Stipp, R Frei
Chemical geology 285 (1-4), 157-166, 2011
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