D-Index & Metrics Best Publications
Earth Science
Denmark
2022

D-Index & Metrics

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Earth Science D-index 69 Citations 12,990 248 World Ranking 456 National Ranking 3

Research.com Recognitions

Awards & Achievements

2022 - Research.com Earth Science in Denmark Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Basalt
  • Sedimentary rock
  • Geochemistry

Robert Frei spends much of his time researching Geochemistry, Mineralogy, Basalt, Metamorphism and Radiogenic nuclide. His study in Geochemistry is interdisciplinary in nature, drawing from both Craton and Petrology. His research in Mineralogy intersects with topics in Mineral, Carbonate, Weathering, Environmental chemistry and Great Oxygenation Event.

Robert Frei combines subjects such as Igneous rock, Mantle and Volcanic rock with his study of Basalt. His Metamorphism research integrates issues from Metamorphic rock, Gneiss, Basement and Zircon. His Radiogenic nuclide research is multidisciplinary, incorporating perspectives in Leaching, Peat, Bog and Deposition.

His most cited work include:

  • History of Atmospheric Lead Deposition Since 12,370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland (625 citations)
  • Fluctuations in Precambrian atmospheric oxygenation recorded by chromium isotopes (429 citations)
  • Atmospheric oxygenation three billion years ago (415 citations)

What are the main themes of his work throughout his whole career to date?

Robert Frei spends much of his time researching Geochemistry, Archean, Mineralogy, Zircon and Metamorphism. His Geochemistry research incorporates themes from Craton, Petrology and Proterozoic. His Archean study combines topics from a wide range of disciplines, such as Pillow lava, Metasomatism, Mafic and Continental crust.

The Mineralogy study combines topics in areas such as Environmental chemistry, Chromium, Sedimentary rock and Radiogenic nuclide. As a part of the same scientific family, Robert Frei mostly works in the field of Zircon, focusing on Provenance and, on occasion, Isotopes of strontium. His research in Metamorphism intersects with topics in Metamorphic rock, Gneiss, Metamorphic facies and Granulite.

He most often published in these fields:

  • Geochemistry (65.29%)
  • Archean (15.12%)
  • Mineralogy (13.06%)

What were the highlights of his more recent work (between 2018-2021)?

  • Geochemistry (65.29%)
  • Environmental chemistry (8.93%)
  • Isotope fractionation (5.84%)

In recent papers he was focusing on the following fields of study:

Geochemistry, Environmental chemistry, Isotope fractionation, Igneous rock and Sedimentary rock are his primary areas of study. His research in Geochemistry is mostly focused on Zircon. His studies in Environmental chemistry integrate themes in fields like Rayleigh fractionation and Isotopes of chromium.

Robert Frei has included themes like Chromium, Redox and Seawater in his Isotope fractionation study. His biological study spans a wide range of topics, including Metamorphism, Continental arc, Weathering, Ophiolite and Petrogenesis. His Sedimentary rock study incorporates themes from Outcrop and Metamorphic rock, Schist.

Between 2018 and 2021, his most popular works were:

  • Bioavailable 87Sr/86Sr in European soils: A baseline for provenancing studies. (37 citations)
  • Shallow retardation of the strontium isotope signal of agricultural liming - implications for isoscapes used in provenance studies (19 citations)
  • Multi-isotope proveniencing of human remains from a Bronze Age battlefield in the Tollense Valley in northeast Germany (18 citations)

In his most recent research, the most cited papers focused on:

  • Sedimentary rock
  • Paleontology
  • Igneous rock

Robert Frei mainly focuses on Geochemistry, Environmental chemistry, Redox, Surface water and Isotope fractionation. Geochemistry is often connected to Carbonate in his work. Robert Frei interconnects Mytilus and Isotopes of chromium in the investigation of issues within Environmental chemistry.

The concepts of his Redox study are interwoven with issues in Chromium and Fractionation. His Surface water research is multidisciplinary, incorporating elements of Isotopes of strontium, Provenance and Groundwater. His work in Isotope fractionation addresses issues such as Seawater, which are connected to fields such as Sediment, Diagenesis and Oxygen minimum zone.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

History of Atmospheric Lead Deposition Since 12,370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland

W. Shotyk;D. Weiss;P. G. Appleby;A. K. Cheburkin.
Science (1998)

836 Citations

Fluctuations in Precambrian atmospheric oxygenation recorded by chromium isotopes

Robert Frei;Claudio Gaucher;Simon W. Poulton;Don E. Canfield.
Nature (2009)

560 Citations

Atmospheric oxygenation three billion years ago

Sean Andrew Crowe;Lasse N. Døssing;Lasse N. Døssing;Nicolas J. Beukes;Michael Bau.
Nature (2013)

505 Citations

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 14 C yr BP

W. Shotyk;D. Weiss;J.D. Kramers;R. Frei.
Geochimica et Cosmochimica Acta (2001)

340 Citations

Tracing the Indian Ocean Mantle Domain Through Time: Isotopic Results from Old West Indian, East Tethyan, and South Pacific Seafloor

J. J. Mahoney;R. Frei;M. L. G. Tejada;X. X. Mo.
Journal of Petrology (1998)

307 Citations

U-rich Archaean sea-floor sediments from Greenland - indications of >3700 Ma oxygenic photosynthesis

Minik T. Rosing;Robert Frei.
Earth and Planetary Science Letters (2004)

280 Citations

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

Gry H Barfod;Francis Albarède;Andrew H Knoll;Shuhai Xiao.
Earth and Planetary Science Letters (2002)

264 Citations

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;Michael Evan Goodsite;F. Roos-Barraclough;R. Frei.
Geochimica et Cosmochimica Acta (2003)

222 Citations

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;J.M. Barton;J.D. Kramers.
Precambrian Research (1998)

200 Citations

Single mineral PbPb dating

Robert Frei;Balz S. Kamber.
Earth and Planetary Science Letters (1995)

168 Citations

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