List of works - Robert Frei

40Ar/39Ar dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian–Cambrian boundary

article by John Parnell et al published June 2014 in Precambrian Research

A matter of months: High precision migration chronology of a Bronze Age female

scientific article

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

scientific article published on 17 November 2019

Atmospheric oxygenation three billion years ago.

scientific article

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

scientific article published on 31 March 2019

C, Sr, Nd isotope chemostratigraphy and zircon provenance of the Witvlei Group (Namibia): Neoproterozoic glaciations and seawater evolution

scientific article published in May 2022

Carbon stable isotope record in the coral species Siderastrea stellata : A link to the Suess Effect in the tropical South Atlantic Ocean

scholarly article by N.S. Pereira published in May 2018

Characterisation of the natural attenuation of chromium contamination in the presence of nitrate using isotopic methods. A case study from the Matanza-Riachuelo River basin, Argentina

scientific article published on 09 September 2019

Chemical and isotopic architecture of the belemnite rostrum

article by C.V. Ullmann et al published June 2015 in Geochimica et Cosmochimica Acta

Chromium isotope fractionation between modern seawater and biogenic carbonates from the Great Barrier Reef, Australia: Implications for the paleo-seawater δ 53 Cr reconstruction

article

Chromium-isotope signatures in scleractinian corals from the Rocas Atoll, Tropical South Atlantic.

scientific article published on 2 September 2015

Commentary: Strontium Is Released Rapidly From Agricultural Lime–Implications for Provenance and Migration Studies

scientific article

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

scholarly article by Kristoffer Szilas et al published July 2012 in Precambrian Research

Constraints on the Origin and Evolution of Magmas in the Payún Matrú Volcanic Field, Quaternary Andean Back-arc of Western Argentina

article

Coral-based climate records from tropical South Atlantic: 2009/2010 ENSO event in C and O isotopes from Porites corals (Rocas Atoll, Brazil).

scientific article

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

scientific article published on 03 October 2019

Ediacaran Doushantuo-type biota discovered in Laurentia

scientific article published on 06 November 2020

Environmentally available hexavalent chromium in soils and sediments impacted by dispersed fly ash in Sarigkiol basin (Northern Greece).

scientific article published on 11 January 2018

Fluctuations in Precambrian atmospheric oxygenation recorded by chromium isotopes

scientific article

Fluctuations in late Neoproterozoic atmospheric oxidation — Cr isotope chemostratigraphy and iron speciation of the late Ediacaran lower Arroyo del Soldado Group (Uruguay)

article

High-resolution Ge-Si-Fe, Cr isotope and Th-U data for the Neoarchean Temagami BIF, Canada, suggest primary origin of BIF bands and oxidative terrestrial weathering 2.7 Ga ago

scientific article published in July 2022

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

scientific article published in Nature Communications

Isotopic Studies of Human Skeletal Remains from a Sixteenth to Seventeenth Century AD Churchyard in Campeche, Mexico

article

Mapping human mobility during the third and second millennia BC in present-day Denmark

scientific article published on 21 August 2019

Microbially induced chromium isotope fractionation and trace elements behavior in lower Cambrian microbialites from the Jaíba Member, Bambuí Basin, Brazil

scientific article published on 21 December 2020

Mobilization and isotope fractionation of chromium during water-rock interaction in presence of siderophores

scientific article published in March 2019

Mono-sample Pb-Pb dating of pyrrhotite and tourmaline: Proterozoic vs. Archean intracratonic gold mineralization: Comment and Reply

scholarly article

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

scholarly article

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

scientific article

Onset of main Phanerozoic marine radiation sparked by emerging Mid Ordovician icehouse

scientific article

Origin of Mesoarchaean arc-related rocks with boninite/komatiite affinities from southern West Greenland

scholarly article by Kristoffer Szilas et al published July 2012 in Lithos

Origin of hexavalent chromium in groundwater: The example of Sarigkiol Basin, Northern Greece

scientific article published on 27 March 2017

Origins of inhabitants from the 16th century Sala (Sweden) silver mine cemetery – A lead isotope perspective

scientific article published in April 2017

Oxidative elemental cycling under the low O2 Eoarchean atmosphere.

scientific article published on 11 February 2016

Oxygen and carbon isotope and Sr/Ca signatures of high-latitude Permian to Jurassic calcite fossils from New Zealand and New Caledonia

article

Petrology and geochemistry of the ∼2.9Ga Itilliarsuk banded iron formation and associated supracrustal rocks, West Greenland: Source characteristics and depositional environment

scholarly article by Rasmus Haugaard et al published May 2013 in Precambrian Research

Re-Os isotopic evidence for long-lived heterogeneity and equilibration processes in the Earth's upper mantle

scientific article published in October 2002

Reduction of hexavalent chromium by ferrous iron: A process of chromium isotope fractionation and its relevance to natural environments

scholarly article

Remnants of arc-related Mesoarchaean oceanic crust in the Tartoq Group of SW Greenland

scholarly article by Kristoffer Szilas et al published March 2013 in Gondwana Research

Removal of natural organic dyes from wool–implications for ancient textile provenance studies

scientific article published on September 2010

Serpentinization in the Archean and Early Phanerozoic – Insights from chromium isotope and REY systematics of the Mg Cr hydroxycarbonate stichtite and associated host serpentinites

scientific article published in March 2021

Shallow retardation of the strontium isotope signal of agricultural liming - implications for isoscapes used in provenance studies

scientific article published on 23 November 2019

Stable isotope records across the Cretaceous-Paleogene transition, Stevns Klint, Denmark: New insights from the chromium isotope system

article

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

scientific article published on 21 October 2019

The Neoarchaean Storø Supracrustal Belt, Nuuk region, southern West Greenland: An arc-related basin with continent-derived sedimentation

scholarly article by Kristoffer Szilas et al published July 2014 in Precambrian Research

The Pan-African West Congo belt in the Republic of Congo (Congo Brazzaville): Stratigraphy of the Mayombe and West Congo Supergroups studied by detrital zircon geochronology

The behavior of molybdenum and its isotopes across the chemocline and in the sediments of sulfidic Lake Cadagno, Switzerland

article

The genesis of Archaean chromitites from the Nuasahi and Sukinda massifs in the Singhbhum Craton, India

scientific article

The geochemistry of modern calcareous barnacle shells and applications for palaeoenvironmental studies

scholarly article by C.V. Ullmann et al published December 2018 in Geochimica et Cosmochimica Acta

The geographic distribution of strontium isotopes in Danish surface waters – A base for provenance studies in archaeology, hydrology and agriculture

article

The link between surface water and groundwater-based drinking water – strontium isotope spatial distribution patterns and their relationships to Danish sediments

scientific article published in October 2020

The proper choice of proxies for relevant strontium isotope baselines used for provenance and mobility studies in glaciated terranes – Important messages from Denmark

scientific article published in May 2022

Trace elements and isotope geochemistry (C, O, Fe, Cr) of the Cauê iron formation, Quadrilátero Ferrífero, Brazil: Evidence for widespread microbial dissimilatory iron reduction at the Archean/Paleoproterozoic transition

article

Tracing the dynamic life story of a Bronze Age Female

scientific article

Was it for walrus? Viking Age settlement and medieval walrus ivory trade in Iceland and Greenland

scholarly article by Karin Margarita Frei et al published 20 April 2015 in World Archaeology

List of works by Robert Frei

40Ar/39Ar dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian–Cambrian boundary

A matter of months: High precision migration chronology of a Bronze Age female

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

Atmospheric oxygenation three billion years ago.

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

C, Sr, Nd isotope chemostratigraphy and zircon provenance of the Witvlei Group (Namibia): Neoproterozoic glaciations and seawater evolution

Carbon stable isotope record in the coral species Siderastrea stellata : A link to the Suess Effect in the tropical South Atlantic Ocean

Characterisation of the natural attenuation of chromium contamination in the presence of nitrate using isotopic methods. A case study from the Matanza-Riachuelo River basin, Argentina

Chemical and isotopic architecture of the belemnite rostrum

Chromium isotope fractionation between modern seawater and biogenic carbonates from the Great Barrier Reef, Australia: Implications for the paleo-seawater δ 53 Cr reconstruction

Chromium-isotope signatures in scleractinian corals from the Rocas Atoll, Tropical South Atlantic.

Commentary: Strontium Is Released Rapidly From Agricultural Lime–Implications for Provenance and Migration Studies

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

Constraints on the Origin and Evolution of Magmas in the Payún Matrú Volcanic Field, Quaternary Andean Back-arc of Western Argentina

Coral-based climate records from tropical South Atlantic: 2009/2010 ENSO event in C and O isotopes from Porites corals (Rocas Atoll, Brazil).

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

Ediacaran Doushantuo-type biota discovered in Laurentia

Environmentally available hexavalent chromium in soils and sediments impacted by dispersed fly ash in Sarigkiol basin (Northern Greece).

Fluctuations in Precambrian atmospheric oxygenation recorded by chromium isotopes

Fluctuations in late Neoproterozoic atmospheric oxidation — Cr isotope chemostratigraphy and iron speciation of the late Ediacaran lower Arroyo del Soldado Group (Uruguay)

High-resolution Ge-Si-Fe, Cr isotope and Th-U data for the Neoarchean Temagami BIF, Canada, suggest primary origin of BIF bands and oxidative terrestrial weathering 2.7 Ga ago

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

Isotopic Studies of Human Skeletal Remains from a Sixteenth to Seventeenth Century AD Churchyard in Campeche, Mexico

Mapping human mobility during the third and second millennia BC in present-day Denmark

Microbially induced chromium isotope fractionation and trace elements behavior in lower Cambrian microbialites from the Jaíba Member, Bambuí Basin, Brazil

Mobilization and isotope fractionation of chromium during water-rock interaction in presence of siderophores

Mono-sample Pb-Pb dating of pyrrhotite and tourmaline: Proterozoic vs. Archean intracratonic gold mineralization: Comment and Reply

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

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

Onset of main Phanerozoic marine radiation sparked by emerging Mid Ordovician icehouse

Origin of Mesoarchaean arc-related rocks with boninite/komatiite affinities from southern West Greenland

Origin of hexavalent chromium in groundwater: The example of Sarigkiol Basin, Northern Greece

Origins of inhabitants from the 16th century Sala (Sweden) silver mine cemetery – A lead isotope perspective

Oxidative elemental cycling under the low O2 Eoarchean atmosphere.

Oxygen and carbon isotope and Sr/Ca signatures of high-latitude Permian to Jurassic calcite fossils from New Zealand and New Caledonia

Petrology and geochemistry of the ∼2.9Ga Itilliarsuk banded iron formation and associated supracrustal rocks, West Greenland: Source characteristics and depositional environment

Re-Os isotopic evidence for long-lived heterogeneity and equilibration processes in the Earth's upper mantle

Reduction of hexavalent chromium by ferrous iron: A process of chromium isotope fractionation and its relevance to natural environments

Remnants of arc-related Mesoarchaean oceanic crust in the Tartoq Group of SW Greenland

Removal of natural organic dyes from wool–implications for ancient textile provenance studies

Serpentinization in the Archean and Early Phanerozoic – Insights from chromium isotope and REY systematics of the Mg Cr hydroxycarbonate stichtite and associated host serpentinites

Shallow retardation of the strontium isotope signal of agricultural liming - implications for isoscapes used in provenance studies

Stable isotope records across the Cretaceous-Paleogene transition, Stevns Klint, Denmark: New insights from the chromium isotope system

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

The Neoarchaean Storø Supracrustal Belt, Nuuk region, southern West Greenland: An arc-related basin with continent-derived sedimentation

The Pan-African West Congo belt in the Republic of Congo (Congo Brazzaville): Stratigraphy of the Mayombe and West Congo Supergroups studied by detrital zircon geochronology

The behavior of molybdenum and its isotopes across the chemocline and in the sediments of sulfidic Lake Cadagno, Switzerland

The genesis of Archaean chromitites from the Nuasahi and Sukinda massifs in the Singhbhum Craton, India

The geochemistry of modern calcareous barnacle shells and applications for palaeoenvironmental studies

The geographic distribution of strontium isotopes in Danish surface waters – A base for provenance studies in archaeology, hydrology and agriculture

The link between surface water and groundwater-based drinking water – strontium isotope spatial distribution patterns and their relationships to Danish sediments

The proper choice of proxies for relevant strontium isotope baselines used for provenance and mobility studies in glaciated terranes – Important messages from Denmark

Trace elements and isotope geochemistry (C, O, Fe, Cr) of the Cauê iron formation, Quadrilátero Ferrífero, Brazil: Evidence for widespread microbial dissimilatory iron reduction at the Archean/Paleoproterozoic transition

Tracing the dynamic life story of a Bronze Age Female

Was it for walrus? Viking Age settlement and medieval walrus ivory trade in Iceland and Greenland