Authigenic uranium isotopes of late Proterozoic black shale

The Uranium Isotopic Record of Shales and Carbonates Through Geologic Time

(2021) X. Chen et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Progressive ocean oxygenation at ~2.2 Ga inferred from geochemistry and molybdenum isotopes of the Nsuta Mn deposit, Ghana

(2021) Kosuke T. Goto et al.   CHEMICAL GEOLOGY

Uranium Isotope Fractionation (238U/235U) during U(VI) Uptake by Freshwater Plankton

(2020) Xinming Chen et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Uranium reduction and isotopic fractionation in reducing sediments: Insights from reactive transport modeling

(2020) Kimberly V. Lau et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

On the co‐evolution of surface oxygen levels and animals

(2020) Devon B. Cole et al.   Geobiology

Uranium isotopes in marine carbonates as a global ocean paleoredox proxy: A critical review

(2020) Feifei Zhang et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Palaeoproterozoic oxygenated oceans following the Lomagundi–Jatuli Event

(2020) Kaarel Mänd et al.   Nature Geoscience

A high-TOC shale in a low productivity world: The late Mesoproterozoic Arctic Bay Formation, Nunavut

(2020) Malcolm S.W. Hodgskiss et al.   EARTH AND PLANETARY SCIENCE LETTERS

Geochemical signatures of transgressive shale intervals from the 811 Ma Fifteenmile Group in Yukon, Canada: Disentangling sedimentary redox cycling from weathering alteration

(2020) Timothy M. Gibson et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Uranium isotope fractionation in non‐sulfidic anoxic settings and the global uranium isotope mass balance

(2020) Devon B. Cole et al.   GLOBAL BIOGEOCHEMICAL CYCLES

Mesoproterozoic oxygenated deep seawater recorded by early diagenetic carbonate concretions from the Member IV of the Xiamaling Formation, North China

(2020) Anqi Liu et al.   PRECAMBRIAN RESEARCH

Uranium isotope evidence for Mesoarchean biological oxygen production in shallow marine and continental settings

(2020) Xiangli Wang et al.   EARTH AND PLANETARY SCIENCE LETTERS

A transient swing to higher oxygen levels in the atmosphere and oceans at ~1.4 Ga

(2020) Wei Wei et al.   PRECAMBRIAN RESEARCH

Radiogenic isotope chemostratigraphy reveals marine and nonmarine depositional environments in the late Mesoproterozoic Borden Basin, Arctic Canada

(2019) Timothy M. Gibson et al.   GEOLOGICAL SOCIETY OF AMERICA BULLETIN

Uranium isotope evidence for limited euxinia in mid-Proterozoic oceans

(2019) Geoffrey J. Gilleaudeau et al.   EARTH AND PLANETARY SCIENCE LETTERS

A productivity collapse to end Earth’s Great Oxidation

(2019) Malcolm S. W. Hodgskiss et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Uranium isotopes as a proxy for primary depositional redox conditions in organic-rich marine systems

(2019) Michelle L. Abshire et al.   EARTH AND PLANETARY SCIENCE LETTERS

Uranium isotope geochemistry in modern coastal sediments: Insights from Toulon Bay, France

(2018) Duc Huy Dang et al.   CHEMICAL GEOLOGY

Coupled Mo-U abundances and isotopes in a small marine euxinic basin: Constraints on processes in euxinic basins

(2018) Elvira Bura-Nakić et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Uranium dispersion from U tailings and mechanisms leading to U accumulation in sediments: Insights from biogeochemical and isotopic approaches

(2018) Duc Huy Dang et al.   SCIENCE OF THE TOTAL ENVIRONMENT

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

(2018) Donald E. Canfield et al.   Nature Communications

The iron paleoredox proxies: A guide to the pitfalls, problems and proper practice

(2018) Rob Raiswell et al.   AMERICAN JOURNAL OF SCIENCE

Triple oxygen isotope evidence for limited mid-Proterozoic primary productivity

(2018) Peter W. Crockford et al.   NATURE

Stepwise oxygenation of the Paleozoic atmosphere

(2018) Alexander J. Krause et al.   Nature Communications

A Mesoarchean shift in uranium isotope systematics

(2018) Xiangli Wang et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Variations in U concentrations and isotope signatures in two Canadian lakes impacted by U mining: A combination of anthropogenic and biogeochemical processes

(2018) Wei Wang et al.   CHEMICAL GEOLOGY

A new estimate of detrital redox-sensitive metal concentrations and variability in fluxes to marine sediments

(2017) Devon B. Cole et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Iron isotope biogeochemistry of Neoproterozoic marine shales

(2017) Marcus Kunzmann et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Uranium stable isotope fractionation in the Black Sea: Modern calibration of the 238 U/ 235 U paleo-redox proxy

(2017) John M. Rolison et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Bacterial sulfur disproportionation constrains timing of Neoproterozoic oxygenation

(2017) Marcus Kunzmann et al.   GEOLOGY

Precise age of Bangiomorpha pubescens dates the origin of eukaryotic photosynthesis

(2017) Timothy M. Gibson et al.   GEOLOGY

Earth’s early O2 cycle suppressed by primitive continents

(2017) Matthijs A. Smit et al.   Nature Geoscience

The Tonian-Cryogenian transition in Northeastern Svalbard

(2017) Galen P. Halverson et al.   PRECAMBRIAN RESEARCH

Uranium isotope compositions of mid-Proterozoic black shales: Evidence for an episode of increased ocean oxygenation at 1.36 Ga and evaluation of the effect of post-depositional hydrothermal fluid flow

(2017) Shuai Yang et al.   PRECAMBRIAN RESEARCH

Delayed Neoproterozoic oceanic oxygenation: Evidence from Mo isotopes of the Cryogenian Datangpo Formation

(2017) Meng Cheng et al.   PRECAMBRIAN RESEARCH

Timing and tempo of the Great Oxidation Event

(2017) Ashley P. Gumsley et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Uranium(V) Incorporation Mechanisms and Stability in Fe(II)/Fe(III) (oxyhydr)Oxides

(2017) Hannah E. Roberts et al.   Environmental Science & Technology Letters

Closing in on the marine 238 U/ 235 U budget

(2016) M.B. Andersen et al.   CHEMICAL GEOLOGY

Uranium Isotope Fractionation during Adsorption, (Co)precipitation, and Biotic Reduction

(2016) Duc Huy Dang et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Oceanic oxygenation events in the anoxic Ediacaran ocean

(2016) S. K. Sahoo et al.   Geobiology

Trace metal cycling and 238 U/ 235 U in New Zealand’s fjords: Implications for reconstructing global paleoredox conditions in organic-rich sediments

(2016) Jessica L. Hinojosa et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

A shale-hosted Cr isotope record of low atmospheric oxygen during the Proterozoic

(2016) Devon B. Cole et al.   GEOLOGY

Sufficient oxygen for animal respiration 1,400 million years ago

(2016) Shuichang Zhang et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Geochemistry of Neoproterozoic black shales from Svalbard: Implications for oceanic redox conditions spanning Cryogenian glaciations

(2015) Marcus Kunzmann et al.   CHEMICAL GEOLOGY

Uranium isotope fractionation in Saanich Inlet: A modern analog study of a paleoredox tracer

(2015) C. Holmden et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Isotope fractionation of 238U and 235U during biologically-mediated uranium reduction

(2015) Claudine H. Stirling et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Uranium and molybdenum isotope evidence for an episode of widespread ocean oxygenation during the late Ediacaran Period

(2015) Brian Kendall et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Statistical analysis of iron geochemical data suggests limited late Proterozoic oxygenation

(2015) Erik A. Sperling et al.   NATURE

A global transition to ferruginous conditions in the early Neoproterozoic oceans

(2015) Romain Guilbaud et al.   Nature Geoscience

Uranium isotopes fingerprint biotic reduction

(2015) Malgorzata Stylo et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

A modern framework for the interpretation of 238U/235U in studies of ancient ocean redox

(2014) M.B. Andersen et al.   EARTH AND PLANETARY SCIENCE LETTERS

The rise of oxygen in Earth’s early ocean and atmosphere

(2014) Timothy W. Lyons et al.   NATURE

Co-evolution of eukaryotes and ocean oxygenation in the Neoproterozoic era

(2014) Timothy M. Lenton et al.   Nature Geoscience

Oxygen requirements of the earliest animals

(2014) D. B. Mills et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals

(2014) N. J. Planavsky et al.   SCIENCE

Paleobiological Perspectives on Early Eukaryotic Evolution

(2014) A. H. Knoll   Cold Spring Harbor Perspectives in Biology

Uranium isotope fractionation suggests oxidative uranium mobilization at 2.50Ga

(2013) Brian Kendall et al.   CHEMICAL GEOLOGY

Neoproterozoic iron formation: An evaluation of its temporal, environmental and tectonic significance

(2013) Grant M. Cox et al.   CHEMICAL GEOLOGY

Uranium concentrations and 238U/235U isotope ratios in modern carbonates from the Bahamas: Assessing a novel paleoredox proxy

(2013) Stephen J. Romaniello et al.   CHEMICAL GEOLOGY

A basin redox transect at the dawn of animal life

(2013) Erik A. Sperling et al.   EARTH AND PLANETARY SCIENCE LETTERS

Large-scale fluctuations in Precambrian atmospheric and oceanic oxygen levels from the record of U in shales

(2013) C.A. Partin et al.   EARTH AND PLANETARY SCIENCE LETTERS

Constraining the depositional history of the Neoproterozoic Shaler Supergroup, Amundsen Basin, NW Canada: Rhenium-osmium dating of black shales from the Wynniatt and Boot Inlet Formations

(2013) David van Acken et al.   PRECAMBRIAN RESEARCH

Digestion methods for trace element measurements in shales: Paleoredox proxies examined

(2012) Guangping Xu et al.   CHEMICAL GEOLOGY

Ferruginous Conditions: A Dominant Feature of the Ocean through Earth's History

(2011) S. W. Poulton et al.   Elements

Uranium Isotope Fractionation during Adsorption to Mn-Oxyhydroxides

(2011) Gregory A. Brennecka et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Widespread iron-rich conditions in the mid-Proterozoic ocean

(2011) Noah J. Planavsky et al.   NATURE

The Cambrian Conundrum: Early Divergence and Later Ecological Success in the Early History of Animals

(2011) D. H. Erwin et al.   SCIENCE

Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish

(2010) T. W. Dahl et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Tracking Euxinia in the Ancient Ocean: A Multiproxy Perspective and Proterozoic Case Study

(2009) Timothy W. Lyons et al.   Annual Review of Earth and Planetary Sciences

Environmental analysis of paleoceanographic systems based on molybdenum–uranium covariation

(2009) T.J. Algeo et al.   CHEMICAL GEOLOGY

Oxygen, animals and oceanic ventilation: an alternative view

(2009) N. J. BUTTERFIELD   Geobiology

On the eve of animal radiation: phylogeny, ecology and evolution of the Ediacara biota

(2008) Shuhai Xiao et al.   TRENDS IN ECOLOGY & EVOLUTION

Natural fractionation of 238U/235U

(2007) S. Weyer et al.   GEOCHIMICA ET COSMOCHIMICA ACTA