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Correlated iron isotopes and silicon contents in aubrite metals reveal structure of their asteroidal parent body [PDF]

open access: yesScientific Reports, 2021
Iron isotopes record the physical parameters, such as temperature and redox conditions, during differentiation processes on rocky bodies. Here we report the results of a correlated investigation of iron isotope compositions and silicon contents of ...
Soumya Ray   +3 more
doaj   +2 more sources

Novel Insights into Marine Iron Biogeochemistry from Iron Isotopes

open access: yesAnnual Review of Marine Science, 2023
The micronutrient iron plays a major role in setting the magnitude and distribution of primary production across the global ocean. As such, an understanding of the sources, sinks, and internal cycling processes that drive the oceanic distribution of iron is key to unlocking iron's role in the global carbon cycle and climate, both today and in the ...
Tim Conway, Jessica Fitzsimmons
exaly   +3 more sources

Tracing and constraining anthropogenic aerosol iron fluxes to the North Atlantic Ocean using iron isotopes [PDF]

open access: yesNature Communications, 2019
The relative importance of crustal vs. anthropogenic dust deposition for iron cycling in the surface ocean is unclear. Based on analysis of iron isotope data from North Atlantic aerosol samples, the authors can reveal the relative importance of ...
Tim M. Conway   +6 more
doaj   +2 more sources

Iron Isotopes Applied to BIF-Hosted Iron Deposits

open access: yesMineral Resource Reviews, 2023
AbstractPublished and unpublished iron isotope data from banded iron formations (BIF) and their BIF-hosted hypogene (hydrothermal) iron ores from the Quadrilátero Ferrífero (itabirites), Corumbá, and Carajás iron districts in Brazil, as well as from the Hamersley province in Australia are presented and discussed.
Thomas Angerer, Steffen G Hagemann
exaly   +2 more sources

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

open access: yesGlobal Biogeochemical Cycles, 2021
Alessandro Tagliabue   +2 more
exaly   +2 more sources

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

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2017
François Lacan   +2 more
exaly   +2 more sources

Screening Effects on Electron-Capture Rates and Type Ia Supernova Nucleosynthesis [PDF]

open access: yesEPJ Web of Conferences, 2022
Nucleosynthesis of iron-group elements in Type Ia supernovae is studied for single-degenerate models with the use of electron-capture rates updated with the new shell-model Hamiltonian in pf -shell.
Suzuki Toshio   +6 more
doaj   +1 more source

Iron Isotopic Composition of Biological Standards Relevant to Medical and Biological Applications

open access: yesFrontiers in Medicine, 2021
Iron isotopes are fractionated by multiple biological processes, which offers a novel opportunity to study iron homeostasis. The determination of Fe isotope composition in biological samples necessitates certified biological reference materials with ...
Edith Kubik   +5 more
doaj   +1 more source

Holocene Spatiotemporal Redox Variations in the Southern Baltic Sea

open access: yesFrontiers in Earth Science, 2021
Low oxygen conditions in the modern Baltic Sea are exacerbated by human activities; however, anoxic conditions also prevailed naturally over the Holocene. Few studies have characterized the specific paleoredox conditions (manganous, ferruginous, euxinic)
Dalton S. Hardisty   +5 more
doaj   +1 more source

Bioturbation and the δ56Fe signature of dissolved iron fluxes from marine sediments

open access: yesRoyal Society Open Science, 2023
We developed a reaction-transport model capable of tracing iron isotopes in marine sediments to quantify the influence of bioturbation on the isotopic signature of the benthic dissolved (DFe) flux.
Sebastiaan J. van de Velde   +2 more
doaj   +1 more source

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