4.4 Article

Carbon pump dynamics and limited organic carbon burial during OAE1a

Related references

Note: Only part of the references are listed.
Article Geography, Physical

Marine paleoecological variations during the mid-Cretaceous oceanic anoxic event 1a in the Vocontian Basin, southeastern France

Takuto Ando et al.

Summary: In sediments from the Goguel level of the Vocontian Basin in southeastern France, it was found that 2-methylhopanoid producers, prasinophyte algae, and other marine organisms played key ecological roles during OAE 1a, with low production potentially leading to anoxia.

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY (2022)

Article Environmental Sciences

Denitrification and dissimilatory nitrate reduction to ammonia in long-term lake sediment microcosms with iron(II)

Shengjie Li et al.

Summary: In long-term microcosm incubations, the addition of nitrate and Fe(II) can stimulate denitrification and dissimilatory nitrate reduction to ammonia (DNRA), leading to a higher nitrate reduction rate. Iron (II) contributes to the production of lepidocrocite, promoting the process of nitrate reduction.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Geography, Physical

Determining the style and provenance of magmatic activity during the Early Aptian Oceanic Anoxic Event (OAE 1a)

L. M. E. Percival et al.

Summary: The study investigates the role of Large Igneous Province (LIP) activity in triggering the Early Aptian Oceanic Anoxic Event (OAE 1a) and emphasizes the importance of the Greater Ontong-Java Plateau (G-OJP). Globally consistent evidence of LIP activity during OAE 1a is indicated, but geographical variations in mercury trends were observed. The findings suggest that G-OJP emissions of mantle carbon were more likely to have played a major role in initiating OAE 1a than thermogenic volatiles associated with High Arctic LIP (HALIP).

GLOBAL AND PLANETARY CHANGE (2021)

Article Geosciences, Multidisciplinary

End-Permian marine extinction due to temperature-driven nutrient recycling and euxinia

Dominik Hulse et al.

Summary: The study used Earth system models and geochemical records to show that in the end-Permian, increased temperature intensified microbial metabolism, leading to periodic deep-ocean anoxia and expansion of euxinic waters. The interactive effects of climate change and microbial activity were identified as a key driver of the massive biotic extinction event at the end of the Permian.

NATURE GEOSCIENCE (2021)

Article Multidisciplinary Sciences

Temperature controls carbon cycling and biological evolution in the ocean twilight zone

Flavia Boscolo-Galazzo et al.

Summary: The study shows that the efficiency of the biological carbon pump increased with global ocean cooling, leading to increased food delivery at depth and the development of new deep-water niches, which triggered the evolution of deep plankton.

SCIENCE (2021)

Article Geosciences, Multidisciplinary

High-Resolution C-Isotope, TOC and Biostratigraphic Records of OAE 1a (Aptian) From an Expanded Hemipelagic Cored Succession, Western Tethys: A New Stratigraphic Reference for Global Correlation and Paleoenvironmental Reconstruction

Jose M. Castro et al.

Summary: This study presents a high-resolution carbonate C-isotope stratigraphy for the Aptian in the Cau core (Spain) and focuses on the early Aptian Oceanic Anoxic Event (OAE 1a). It reveals a record of pulses of volcanism and methane emissions through sharp delta C-13(carb) negative spikes. The C-isotope profile across OAE 1a perfectly records the defined segments worldwide and proposes the Cau core as a new reference section for the Aptian.

PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY (2021)

Article Environmental Sciences

Global Ocean Sediment Composition and Burial Flux in the Deep Sea

Christopher T. Hayes et al.

Summary: The study used Th-230-normalized fluxes to create maps of deep-sea burial fluxes of components like calcium carbonate and biogenic opal, providing new quantitative estimates for deep-sea budgets. The sediment flux compilation offers detailed regional and global information to refine the understanding of sediment preservation.

GLOBAL BIOGEOCHEMICAL CYCLES (2021)

Article Geology

Pulsed volcanism and rapid oceanic deoxygenation during Oceanic Anoxic Event 1a

Kohen W. Bauer et al.

Summary: The early Aptian Oceanic Anoxic Event 1a (OAE1a) was marked by widespread oceanic anoxia, biological crises, and volcanic activity. Research using geochemical data has shown that rapid oceanic deoxygenation followed the initial phases of volcanism and a biocalcification crisis, lasting for almost one million years. This new understanding separates volcanism, biological crisis, and oceanic deoxygenation in time, linking them through Earth system responses over tens of thousands of years.

GEOLOGY (2021)

Article Geosciences, Multidisciplinary

Phosphorus-limited conditions in the early Neoproterozoic ocean maintained low levels of atmospheric oxygen

Romain Guilbaud et al.

NATURE GEOSCIENCE (2020)

Review Environmental Sciences

Microbial Respiration, the Engine of Ocean Deoxygenation

Carol Robinson

FRONTIERS IN MARINE SCIENCE (2019)

Review Geosciences, Multidisciplinary

Drivers and mechanisms of ocean deoxygenation

Andreas Oschlies et al.

NATURE GEOSCIENCE (2018)

Review Multidisciplinary Sciences

Declining oxygen in the global ocean and coastal waters

Denise Breitburg et al.

SCIENCE (2018)

Article Geosciences, Multidisciplinary

THE IRON PALEOREDOX PROXIES: A GUIDE TO THE PITFALLS, PROBLEMS AND PROPER PRACTICE

Rob Raiswell et al.

AMERICAN JOURNAL OF SCIENCE (2018)

Article Geography, Physical

The palaeoceanographic crisis of the Early Aptian (OAE 1a) in the Vocontian Basin (SE France)

Fabienne Giraud et al.

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY (2018)

Article Geosciences, Multidisciplinary

Iron-dependent nitrogen cycling in a ferruginous lake and the nutrient status of Proterozoic oceans

Celine C. Michiels et al.

NATURE GEOSCIENCE (2017)

Article Multidisciplinary Sciences

Remineralization of particulate organic carbon in an ocean oxygen minimum zone

E. L. Cavan et al.

NATURE COMMUNICATIONS (2017)

Article Geosciences, Multidisciplinary

Cretaceous sea-surface temperature evolution: Constraints from TEX86 and planktonic foraminiferal oxygen isotopes

Charlotte L. O'Brien et al.

EARTH-SCIENCE REVIEWS (2017)

Article Geochemistry & Geophysics

Lithium-isotope evidence for enhanced silicate weathering during OAE 1a (Early Aptian Selli event)

Maria Lechler et al.

EARTH AND PLANETARY SCIENCE LETTERS (2015)

Article Multidisciplinary Sciences

Attenuation of sinking particulate organic carbon flux through the mesopelagic ocean

Chris M. Marsay et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2015)

Article Geosciences, Multidisciplinary

Climate variability and ocean fertility during the Aptian Stage

C. Bottini et al.

CLIMATE OF THE PAST (2015)

Article Geochemistry & Geophysics

Secular change in northwestern Tethyan water-mass oxygenation during the late Hauterivian-early Aptian

Stephane Bodin et al.

EARTH AND PLANETARY SCIENCE LETTERS (2013)

Article Geochemistry & Geophysics

Rapid changes in the redox conditions of the western Tethys Ocean during the early Aptian oceanic anoxic event

Stephane Westermann et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2013)

Review Geology

Early Cretaceous life, climate and anoxia

K. B. Foellmi

CRETACEOUS RESEARCH (2012)

Article Environmental Sciences

Temperature dependence of planktonic metabolism in the ocean

A. Regaudie-de-Gioux et al.

GLOBAL BIOGEOCHEMICAL CYCLES (2012)

Article Limnology

Scale-dependent carbon : nitrogen : phosphorus seston stoichiometry in marine and freshwaters

Robert W. Sterner et al.

LIMNOLOGY AND OCEANOGRAPHY (2008)

Article Multidisciplinary Sciences

The rise of atmospheric oxygen

Lee R. Kump

NATURE (2008)

Article Biodiversity Conservation

Ocean warming enhances respiration and carbon demand of coastal microbial plankton

Evaristo Vazquez-Dominguez et al.

GLOBAL CHANGE BIOLOGY (2007)

Article Biotechnology & Applied Microbiology

Contribution of SAR11 bacteria to dissolved dimethylsulfoniopropionate and amino acid uptake in the North Atlantic ocean

RR Malmstrom et al.

APPLIED AND ENVIRONMENTAL MICROBIOLOGY (2004)

Article Multidisciplinary Sciences

The long-term carbon cycle, fossil fuels and atmospheric composition

RA Berner

NATURE (2003)

Article Environmental Sciences

Factors controlling the flux of organic carbon to the bathypelagic zone of the ocean

R Francois et al.

GLOBAL BIOGEOCHEMICAL CYCLES (2002)

Review Plant Sciences

Redfield revisited:: variability of C:N:P in marine microalgae and its biochemical basis

RJ Geider et al.

EUROPEAN JOURNAL OF PHYCOLOGY (2002)

Article Limnology

Role of the oxygen-deficient zone in transfer of organic carbon to the deep ocean

AH Devol et al.

LIMNOLOGY AND OCEANOGRAPHY (2001)

Review Environmental Sciences

Temperature effects on export production in the open ocean

EA Laws et al.

GLOBAL BIOGEOCHEMICAL CYCLES (2000)