4.7 Article

Release of tephra-hosted iron during early diagenesis fingerprinted by iron isotopes

Related references

Note: Only part of the references are listed.
Article Environmental Sciences

Subaerial volcanism is a potentially major contributor to oceanic iron and manganese cycles

Jack Longman et al.

Summary: According to Monte Carlo simulations based on ash composition and eruption volume data, subaerial volcanism may provide an important source of micronutrients to the surface ocean through the deposition of iron and manganese rich ash, and the estimated nutrient fluxes are of similar magnitude to aeolian inputs.

COMMUNICATIONS EARTH & ENVIRONMENT (2022)

Article Geosciences, Multidisciplinary

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

Jack Longman et al.

Summary: The Late Ordovician period was characterized by global cooling, glaciation, and severe mass extinction, potentially driven by increased delivery of phosphorus to the oceans from volcanic eruptions. By studying the effects of volcanic ash on marine ecosystems, researchers have reconstructed the impact of Late Ordovician volcanic phosphorus delivery on the marine system, showing that massive volcanism can lead to significant global cooling over million-year timescales. This offset the transient warming from greenhouse gas emissions associated with volcanic eruptions, suggesting potential long-term cooling and marine eutrophication effects from volcanism-driven global events.

NATURE GEOSCIENCE (2021)

Article Multidisciplinary Sciences

Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean

Thomas J. Browning et al.

Summary: The text discusses the issue of residual nutrients in the Southern Ocean, emphasizing the importance of manganese in influencing the marine ecosystem and nutrient cycling. Experimental results show that manganese plays a key role in controlling phytoplankton growth, particularly in the central Drake Passage.

NATURE COMMUNICATIONS (2021)

Article Multidisciplinary Sciences

Iron colloids dominate sedimentary supply to the ocean interior

William B. Homoky et al.

Summary: This study reveals that lithogenic colloid production is the primary mechanism driving iron supply in sediment porewaters in the South Atlantic, which differs from the prevailing understanding. Iron colloids, closely associated with organic carbon abundance, may form a large exchangeable reservoir of organo-mineral Fe colloids in oxic ocean sediments.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Article Environmental Sciences

Constraints on the Cycling of Iron Isotopes From a Global Ocean Model

D. Konig et al.

Summary: Iron isotopes in the ocean are crucial in studying the iron cycle, but the complexity of various external sources and fractionation processes can complicate the interpretation of observations. By incorporating iron isotopes into a global ocean biogeochemical model, research finds that distinct external source endmembers and isotopic fractionation are essential for explaining the distribution of dissolved iron isotopes, with the water column's δFe-56(diss) distribution influenced by regional imbalance of remineralization and abiotic removal processes.

GLOBAL BIOGEOCHEMICAL CYCLES (2021)

Article Geochemistry & Geophysics

Sedimentary iron cycling in the Benguela upwelling system off Namibia

Philipp Boening et al.

EARTH AND PLANETARY SCIENCE LETTERS (2020)

Article Chemistry, Multidisciplinary

Unexpected Source and Transport of Iron from the Deep Peru Margin

Phoebe J. Lam et al.

ACS EARTH AND SPACE CHEMISTRY (2020)

Article Environmental Sciences

Viability of greenhouse gas removal via artificial addition of volcanic ash to the ocean

Jack Longman et al.

ANTHROPOCENE (2020)

Article Chemistry, Analytical

Characterization of the new isotopic reference materials IRMM-524A and ERM-AE143 for Fe and Mg isotopic analysis of geological and biological samples

Claudia Gonzalez de Vega et al.

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY (2020)

Review Geosciences, Multidisciplinary

The role of tephra in enhancing organic carbon preservation in marine sediments

Jack Longman et al.

EARTH-SCIENCE REVIEWS (2019)

Article Geochemistry & Geophysics

Controls on the iron isotopic composition of global arc magmas

John Foden et al.

EARTH AND PLANETARY SCIENCE LETTERS (2018)

Article Geochemistry & Geophysics

Diagenesis in tephra-rich sediments from the Lesser Antilles Volcanic Arc: Pore fluid constraints

Natalie A. Murray et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2018)

Article Multidisciplinary Sciences

Volcanic ash as a driver of enhanced organic carbon burial in the Cretaceous

Cin-Ty A. Lee et al.

SCIENTIFIC REPORTS (2018)

Article Geochemistry & Geophysics

Opposing authigenic controls on the isotopic signature of dissolved iron in hydrothermal plumes

A. J. M. Lough et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2017)

Article Geosciences, Multidisciplinary

Long-term changes in explosive and effusive behaviour at andesitic arc volcanoes: Chronostratigraphy of the Centre Hills Volcano, Montserrat

Maya Coussens et al.

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH (2017)

Article Multidisciplinary Sciences

Iron isotopes reveal distinct dissolved iron sources and pathways in the intermediate versus deep Southern Ocean

Cyril Abadie et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2017)

Article Geochemistry & Geophysics

Late Cenozoic tephrostratigraphy offshore the southern Central American Volcanic Arc: 1. Tephra ages and provenance

J. C. Schindlbeck et al.

GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS (2016)

Article Environmental Sciences

How well do global ocean biogeochemistry models simulate dissolved iron distributions?

Alessandro Tagliabue et al.

GLOBAL BIOGEOCHEMICAL CYCLES (2016)

Review Geosciences, Multidisciplinary

Geochemical approaches to the quantification of dispersed volcanic ash in marine sediment

Rachel P. Scudder et al.

PROGRESS IN EARTH AND PLANETARY SCIENCE (2016)

Article Geochemistry & Geophysics

Optimization of end-members used in multiple linear regression geochemical mixing models

Ann G. Dunlea et al.

GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS (2015)

Article Geochemistry & Geophysics

Copper and iron isotope fractionation during weathering and pedogenesis: Insights from saprolite profiles

Sheng-Ao Liu et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2014)

Article Geosciences, Multidisciplinary

Strong responses of Southern Ocean phytoplankton communities to volcanic ash

T. J. Browning et al.

GEOPHYSICAL RESEARCH LETTERS (2014)

Article Multidisciplinary Sciences

Quantification of dissolved iron sources to the North Atlantic Ocean

Tim M. Conway et al.

NATURE (2014)

Article Geochemistry & Geophysics

Extreme iron isotope fractionation between colloids and particles of boreal and temperate organic-rich waters

Svetlana M. Ilina et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2013)

Article Geosciences, Multidisciplinary

Natural iron fertilization by the Eyjafjallajokull volcanic eruption

Eric P. Achterberg et al.

GEOPHYSICAL RESEARCH LETTERS (2013)

Review Geosciences, Multidisciplinary

Processes and patterns of oceanic nutrient limitation

C. M. Moore et al.

NATURE GEOSCIENCE (2013)

Article Multidisciplinary Sciences

Distinct iron isotopic signatures and supply from marine sediment dissolution

William B. Homoky et al.

NATURE COMMUNICATIONS (2013)

Article Geochemistry & Geophysics

Uptake of dissolved oxygen during marine diagenesis of fresh volcanic material

D. J. Hembury et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2012)

Article Environmental Sciences

The vertical distribution of iron stable isotopes in the North Atlantic near Bermuda

Seth G. John et al.

GLOBAL BIOGEOCHEMICAL CYCLES (2012)

Article Geochemistry & Geophysics

Iron isotopes in the seawater of the equatorial Pacific Ocean: New constraints for the oceanic iron cycle

Amandine Radic et al.

EARTH AND PLANETARY SCIENCE LETTERS (2011)

Article Geochemistry & Geophysics

Iron and manganese diagenesis in deep sea volcanogenic sediments and the origins of pore water colloids

W. B. Homoky et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2011)

Article Engineering, Environmental

Fe Isotope Fractionation during Equilibration of Fe-Organic Complexes

Jennifer L. L. Morgan et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2010)

Article Geochemistry & Geophysics

Routine isotopic analysis of iron by HR-MC-ICPMS: How precise and how accurate?

Nicolas Dauphas et al.

CHEMICAL GEOLOGY (2009)

Article Geochemistry & Geophysics

Dispersed ash in deeply buried sediment from the northwest Pacific Ocean: An example from the Izu-Bonin arc (ODP Site 1149)

Rachel P. Scudder et al.

EARTH AND PLANETARY SCIENCE LETTERS (2009)

Article Geochemistry & Geophysics

Iron isotope fractionation in a buoyant hydrothermal plume, 5°S Mid-Atlantic Ridge

Sarah A. Bennett et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2009)

Article Geochemistry & Geophysics

Equilibrium Fe isotope fractionation between inorganic aqueous Fe(III) and the siderophore complex, Fe(III)-desferrioxamine B

K. Dideriksen et al.

EARTH AND PLANETARY SCIENCE LETTERS (2008)

Article Geochemistry & Geophysics

Rapid releases of metal salts and nutrients following the deposition of volcanic ash into aqueous environments

Morgan T. Jones et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2008)

Review Geochemistry & Geophysics

Geochemistry of Peruvian near-surface sediments

P Böning et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2004)

Article Marine & Freshwater Biology

Sources and distribution of organic matter in a river-dominated estuary (Winyah Bay, SC, USA)

MA Goñi et al.

ESTUARINE COASTAL AND SHELF SCIENCE (2003)

Article Physics, Atomic, Molecular & Chemical

High precision Fe isotope measurements with high mass resolution MC-ICPMS

S Weyer et al.

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY (2003)