Uranium isotopes in non-euxinic shale and carbonate reveal dynamic Katian marine redox conditions accompanying a decrease in biodiversity prior to the Late Ofrdovician Mass Extinction

The large decline in carbonate δ238U from a PETM section at Tingri (South Tibet) was driven by local sea-level changes, not global oceanic anoxia

(2023) Qinghai Zhang et al.   EARTH AND PLANETARY SCIENCE LETTERS

Effects of weathering and fluvial transport on detrital trace metals

(2023) Xiangli Wang et al.   EARTH-SCIENCE REVIEWS

Was the Late Ordovician mass extinction truly exceptional?

(2023) Christian M.Ø. Rasmussen et al.   TRENDS IN ECOLOGY & EVOLUTION

Uranium and molybdenum isotope evidence for globally extensive marine euxinia on continental margins and in epicontinental seas during the Devonian-Carboniferous Hangenberg Crisis

(2023) Shuai Yang et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Oceanic anoxia and extinction in the latest Ordovician

(2022) Mu Liu et al.   EARTH AND PLANETARY SCIENCE LETTERS

238U/235U in calcite is more susceptible to carbonate diagenesis

(2022) Xinming Chen et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Nd isotopic evidence for enhanced mafic weathering leading to Ordovician cooling

(2022) Christopher T. Conwell et al.   GEOLOGY

A global reassessment of the controls on iron speciation in modern sediments and sedimentary rocks: A dominant role for diagenesis

(2022) V. Pasquier et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

238U, 235U and 234U in seawater and deep-sea corals: A high-precision reappraisal

(2022) Michael A. Kipp et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

UID: The uranium isotope database

(2022) Haoyu Li et al.   CHEMICAL GEOLOGY

No evidence for expansion of global ocean euxinia during the base Stairsian mass extinction event (Tremadocian, Early Ordovician)

(2022) Xinze Lu et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction

(2022) Nevin P. Kozik et al.   Science Advances

Recent Advances in Geochemical Paleo-Oxybarometers

(2021) Brian Kendall   Annual Review of Earth and Planetary Sciences

Novel watermass reconstruction in the Early Mississippian Appalachian Seaway based on integrated proxy records of redox and salinity

(2021) Geoffrey J. Gilleaudeau et al.   EARTH AND PLANETARY SCIENCE LETTERS

The Uranium Isotopic Record of Shales and Carbonates Through Geologic Time

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

A high-resolution record of early Paleozoic climate

(2021) Samuel L. Goldberg et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Sulfidic anoxia in the oceans during the Late Ordovician mass extinctions – insights from molybdenum and uranium isotopic global redox proxies

(2021) Tais W. Dahl et al.   EARTH-SCIENCE REVIEWS

Temporally and spatially dynamic redox conditions on an upwelling margin: The impact on coupled sedimentary Mo and U isotope systematics, and implications for the Mo-U paleoredox proxy

(2021) Zhiwei He et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Carbon and oxygen isotope variations in shell beds from the Upper Ordovician (mid-Cincinnatian: Maysvillian to early Richmondian) of Ontario: Evaluation of the Warm Saline Deep Ocean hypothesis, paleoceanographic changes, and Milankovitch orbital cycles in the transition to the Hirnantian glaciation

(2021) M.E. Brookfield et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

Black shale Mo isotope record reveals dynamic ocean redox during the Mesoproterozoic Era

(2021) Y. Ye et al.   Geochemical Perspectives Letters

Uranium isotope cycling on the highly productive Peruvian margin

(2021) S. Bruggmann et al.   CHEMICAL GEOLOGY

Variable local basin hydrography and productivity control the uranium isotope paleoredox proxy in anoxic black shales

(2021) Kimberly V. Lau et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Carbonate associated uranium isotopes as a novel local redox indicator in oxidatively disturbed reducing sediments

(2021) Matthew O. Clarkson et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Late Ordovician climate change and extinctions driven by elevated volcanic nutrient supply

(2021) Jack Longman et al.   Nature Geoscience

Vertical decoupling in Late Ordovician anoxia due to reorganization of ocean circulation

(2021) Alexandre Pohl et al.   Nature Geoscience

Inverse correlation between the molybdenum and uranium isotope compositions of Upper Devonian black shales caused by changes in local depositional conditions rather than global ocean redox variations

(2020) Brian Kendall et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

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

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

Two distinct episodes of marine anoxia during the Permian-Triassic crisis evidenced by uranium isotopes in marine dolostones

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

Redox classification and calibration of redox thresholds in sedimentary systems

(2020) Thomas J. Algeo et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

A high-resolution summary of Cambrian to Early Triassic marine invertebrate biodiversity

(2020) Jun-xuan Fan et al.   SCIENCE

Engineered carbon mineralization in ultramafic rocks for CO2 removal from air: Review and new insights

(2020) Peter B. Kelemen et al.   CHEMICAL GEOLOGY

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

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

Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation

(2020) David P.G. Bond et al.   GEOLOGY

Marine redox variability from Baltica during extinction events in the latest Ordovician–early Silurian

(2020) Seth A. Young et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

Persistent global marine euxinia in the early Silurian

(2020) Richard G. Stockey et al.   Nature Communications

Large mass-independent sulphur isotope anomalies link stratospheric volcanism to the Late Ordovician mass extinction

(2020) Dongping Hu et al.   Nature Communications

Uranium isotope compositions of biogenic carbonates – Implications for U uptake in shells and the application of the paleo-ocean oxygenation proxy

(2020) B.D. Livermore et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Untangling the diagenetic history of uranium isotopes in marine carbonates: A case study tracing the δ238U composition of late Silurian oceans using calcitic brachiopod shells

(2020) Álvaro del Rey 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

Ordovician palaeogeography and climate change

(2020) L. Robin M. Cocks et al.   GONDWANA RESEARCH

Redox changes in the outer Yangtze Sea (South China) through the Hirnantian Glaciation and their implications for the end-Ordovician biocrisis

(2020) Na Li et al.   EARTH-SCIENCE REVIEWS

Estimating ancient seawater isotope compositions and global ocean redox conditions by coupling the molybdenum and uranium isotope systems of euxinic organic-rich mudrocks

(2020) Xinze Lu et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Arc-continent collisions in the tropics set Earth’s climate state

(2019) Francis A. Macdonald et al.   SCIENCE

Cascading trend of Early Paleozoic marine radiations paused by Late Ordovician extinctions

(2019) Christian M. Ø. Rasmussen et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Comparative Lower-Middle Ordovician conodont oxygen isotope palaeothermometry of the Argentine Precordillera and Laurentian margins

(2019) Guillermo L. Albanesi et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

Katian (Upper Ordovician) carbon isotope chemostratigraphy in the Neixiang area, central China: implications for intercontinental correlation

(2019) Xiuchun Jing et al.   GEOLOGICAL MAGAZINE

Rhenium–Osmium Isotope Measurements in Marine Shale Reference Material SBC ‐1: Implications for Method Validation and Quality Control

(2019) Jie Li et al.   GEOSTANDARDS AND GEOANALYTICAL RESEARCH

Coordinated biotic and abiotic change during the Great Ordovician Biodiversification Event: Darriwilian assembly of early Paleozoic building blocks

(2019) Alycia L. Stigall et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

Upper Katian (Upper Ordovician) trans-Atlantic δ13 C chemostratigraphy: the geochronological equivalence of the ELKHORN and PAROVEJA excursions and its implications

(2019) Stig M. Bergström et al.   LETHAIA

Revised sequence stratigraphy of the upper Katian Stage (Cincinnatian) strata in the Cincinnati Arch reference area: Geological and paleontological implications

(2019) Carlton E. Brett et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

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

Correlated molybdenum and uranium isotope signatures in modern anoxic sediments: Implications for their use as paleo-redox proxy

(2019) A. Brüske et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

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

Diagenetic effects on uranium isotope fractionation in carbonate sediments from the Bahamas

(2018) Xinming Chen et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Ocean euxinia and climate change “double whammy” drove the Late Ordovician mass extinction

(2018) Caineng Zou et al.   GEOLOGY

The Great Ordovician Biodiversification Event (GOBE): definition, concept and duration

(2018) Thomas Servais et al.   LETHAIA

Abrupt global-ocean anoxia during the Late Ordovician–early Silurian detected using uranium isotopes of marine carbonates

(2018) Rick Bartlett et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

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

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

Links between early Paleozoic oxygenation and the Great Ordovician Biodiversification Event (GOBE): A review

(2018) Cole T. Edwards   Palaeoworld

Biological effects on uranium isotope fractionation (238U/235U) in primary biogenic carbonates

(2018) Xinming Chen et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

A Mesoarchean shift in uranium isotope systematics

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

Controls of eustasy and diagenesis on the 238U/235U of carbonates and evolution of the seawater (234U/238U) during the last 1.4 Myr

(2018) François L.H. Tissot et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

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

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

A volcanic trigger for the Late Ordovician mass extinction? Mercury data from south China and Laurentia

(2017) David S. Jones et al.   GEOLOGY

Precise and accurate Re–Os isotope dating of organic-rich sedimentary rocks by thermal ionization mass spectrometry with an improved H 2 O 2 -HNO 3 digestion procedure

(2017) Lu Yin et al.   INTERNATIONAL JOURNAL OF MASS SPECTROMETRY

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

THE STABLE ISOTOPE GEOCHEMISTRY OF MOLYBDENUM

(2017) Brian Kendall et al.   Reviews in Mineralogy & Geochemistry

Uranium Isotope Fractionation

(2017) Morten B. Andersen et al.   Reviews in Mineralogy & Geochemistry

Closing in on the marine 238 U/ 235 U budget

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

Uranium Isotopic Fractionation Induced by U(VI) Adsorption onto Common Aquifer Minerals

(2016) N. E. Jemison et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Uranium isotope fractionation during coprecipitation with aragonite and calcite

(2016) Xinming Chen et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Scientific Basis for Efficient Extraction of Uranium from Seawater. I: Understanding the Chemical Speciation of Uranium under Seawater Conditions

(2016) Francesco Endrizzi et al.   INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

Co-evolution of oceans, climate, and the biosphere during the ‘Ordovician Revolution’: A review

(2016) Thomas J. Algeo et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

Low-latitude arc–continent collision as a driver for global cooling

(2016) Oliver Jagoutz et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Earliest land plants created modern levels of atmospheric oxygen

(2016) Timothy M. Lenton et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Marine anoxia and delayed Earth system recovery after the end-Permian extinction

(2016) Kimberly V. Lau et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Trans-Atlantic application of the Baltic Middle and Upper Ordovician carbon isotope zonation

(2015) S M Bergström et al.   Estonian Journal of Earth Sciences

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

(2015) C. Holmden 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

Uranium isotopic compositions of the crust and ocean: Age corrections, U budget and global extent of modern anoxia

(2015) François L.H. Tissot et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Strontium isotope (87Sr/86Sr) stratigraphy of Ordovician bulk carbonate: Implications for preservation of primary seawater values

(2015) Cole T. Edwards et al.   GEOLOGICAL SOCIETY OF AMERICA BULLETIN

238U/235U isotope ratios of crustal material, rivers and products of hydrothermal alteration: new insights on the oceanic U isotope mass balance

(2015) Janine Noordmann et al.   ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES

The terrestrial uranium isotope cycle

(2015) Morten B. Andersen et al.   NATURE

Changes in marine productivity and redox conditions during the Late Ordovician Hirnantian glaciation

(2015) Lian Zhou et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

The Great Ordovician Biodiversification Event: Reviewing two decades of research on diversity's big bang illustrated by mainly brachiopod data

(2015) David A.T. Harper et al.   Palaeoworld

Assessing the utility of Fe/Al and Fe-speciation to record water column redox conditions in carbonate-rich sediments

(2014) M.O. Clarkson et al.   CHEMICAL GEOLOGY

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

Uranium isotope systematics of ferromanganese crusts in the Pacific Ocean: Implications for the marine 238 U/ 235 U isotope system

(2014) Kosuke T. Goto et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Calibration of a conodont apatite-based Ordovician87Sr/86Sr curve to biostratigraphy and geochronology: Implications for stratigraphic resolution

(2014) Matthew R. Saltzman et al.   GEOLOGICAL SOCIETY OF AMERICA BULLETIN

Terminal Ordovician stratigraphy of the Siljan district, Sweden

(2014) Jan Ove R. Ebbestad et al.   GFF

A Cenozoic-style scenario for the end-Ordovician glaciation

(2014) Jean-François Ghienne et al.   Nature Communications

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

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

Environmental changes in the Late Ordovician-early Silurian: Review and new insights from black shales and nitrogen isotopes

(2013) M. J. Melchin et al.   GEOLOGICAL SOCIETY OF AMERICA BULLETIN

Proposal for an International Molybdenum Isotope Measurement Standard and Data Representation

(2013) Thomas F. Nägler et al.   GEOSTANDARDS AND GEOANALYTICAL RESEARCH

End Ordovician extinctions: A coincidence of causes

(2013) David A.T. Harper et al.   GONDWANA RESEARCH

Geologic Drivers of Late Ordovician Faunal Change in Laurentia: Investigating Links between Tectonics, Speciation, and Biotic Invasions

(2013) David F. Wright et al.   PLoS One

Proterozoic ocean redox and biogeochemical stasis

(2013) C. T. Reinhard et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

U/Mo ratios and δ98/95Mo as local and global redox proxies during mass extinction events

(2012) Lian Zhou et al.   CHEMICAL GEOLOGY

A sulfidic driver for the end-Ordovician mass extinction

(2012) Emma U. Hammarlund et al.   EARTH AND PLANETARY SCIENCE LETTERS

Iron, zinc, magnesium and uranium isotopic fractionation during continental crust differentiation: The tale from migmatites, granitoids, and pegmatites

(2012) Myriam Telus et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

First plants cooled the Ordovician

(2012) Timothy M. Lenton et al.   Nature Geoscience

Nutrients as the dominant control on the spread of anoxia and euxinia across the Cenomanian-Turonian oceanic anoxic event (OAE2): Model-data comparison

(2012) F. M. Monteiro et al.   PALEOCEANOGRAPHY

Climate change and the selective signature of the Late Ordovician mass extinction

(2012) S. Finnegan et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Upper Ordovician conodont biostratigraphy and the age of the Collingwood Member, southern Ontario, Canada1Earth Science Sector (ESS) Contribution 20100302.

(2011) Shunxin Zhang et al.   CANADIAN JOURNAL OF EARTH SCIENCES

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

The Magnitude and Duration of Late Ordovician-Early Silurian Glaciation

(2011) S. Finnegan et al.   SCIENCE

A detailed 87SR/86SR isotopic curve for the mid-Cincinnatian (Upper Katian–Lower Hirnantian, Upper Ordovician), NE North American Shelf (Ontario, Canada) transition to the Hirnantian glaciation

(2010) R. Hannigan et al.   CHEMICAL GEOLOGY

Pervasive oxygenation along late Archaean ocean margins

(2010) Brian Kendall et al.   Nature Geoscience

Middle and Upper Ordovician carbon isotope chemostratigraphy in Baltoscandia: A correlation standard and clues to environmental history

(2010) L. Ainsaar et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

Katian (Upper Ordovician) δ13C chemostratigraphy and sequence stratigraphy in the United States and Baltoscandia: A regional comparison

(2010) Stig M. Bergström et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

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

Environmental analysis of paleoceanographic systems based on molybdenum–uranium covariation

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

Large perturbations of the carbon and sulfur cycle associated with the Late Ordovician mass extinction in South China

(2009) Tonggang Zhang et al.   GEOLOGY

A major drop in seawater 87Sr/86Sr during the Middle Ordovician (Darriwilian): Links to volcanism and climate?

(2009) Seth A. Young et al.   GEOLOGY

Oceanic Euxinia in Earth History: Causes and Consequences

(2008) Katja M. Meyer et al.   Annual Review of Earth and Planetary Sciences

Redox sensitivity of P cycling during marine black shale formation: Dynamics of sulfidic and anoxic, non-sulfidic bottom waters

(2008) C. März et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

The new chronostratigraphic classification of the Ordovician System and its relations to major regional series and stages and to δ13C chemostratigraphy

(2008) STIG M. BERGSTRÖM et al.   LETHAIA

Natural fractionation of 238U/235U

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