Iron isotope systematics
Iron Isotope Systematics | Reviews in Mineralogy and Geochemistry | GeoScienceWorld
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The iron isotope fingerprints of redox and biogeochemical cycling in modern and ancient Earth
CM Johnson, BL Beard… - Annu. Rev. Earth Planet …, 2008 - annualreviews.org
The largest Fe isotope fractionations occur during redox changes, as well as differences in
bonding, but these are expressed only in natural environments in which significant …
bonding, but these are expressed only in natural environments in which significant …
Rare earth element and yttrium compositions of Archean and Paleoproterozoic Fe formations revisited: new perspectives on the significance and mechanisms of …
The ocean and atmosphere were largely anoxic in the early Precambrian, resulting in an Fe
cycle that was dramatically different than today's. Extremely Fe-rich sedimentary deposits …
cycle that was dramatically different than today's. Extremely Fe-rich sedimentary deposits …
A critical look at iron paleoredox proxies: New insights from modern euxinic marine basins
TW Lyons, S Severmann - Geochimica et Cosmochimica Acta, 2006 - Elsevier
Enrichments in reactive iron occur under euxinic marine conditions, that is, where dissolved
sulfide is present in the water column. These enrichments result primarily from the export of …
sulfide is present in the water column. These enrichments result primarily from the export of …
Natural fractionation of 238U/235U
The isotopic composition of U in nature is generally assumed to be invariant. Here, we report
variations of the 238U/235U isotope ratio in natural samples (basalts, granites, seawater …
variations of the 238U/235U isotope ratio in natural samples (basalts, granites, seawater …
Density functional theory estimation of isotope fractionation of Fe, Ni, Cu, and Zn among species relevant to geochemical and biological environments
This paper reports the values of reduced partition function ratios (as 1000 ln β) for Fe, Ni, Cu,
and Zn bound to a number of inorganic and organic ligands. We used Density Functional …
and Zn bound to a number of inorganic and organic ligands. We used Density Functional …
Iron isotope constraints on the Archean and Paleoproterozoic ocean redox state
The response of the ocean redox state to the rise of atmospheric oxygen about 2.3 billion
years ago (Ga) is a matter of controversy. Here we provide iron isotope evidence that the …
years ago (Ga) is a matter of controversy. Here we provide iron isotope evidence that the …
Iron, zinc, magnesium and uranium isotopic fractionation during continental crust differentiation: The tale from migmatites, granitoids, and pegmatites
The causes of some stable isotopic variations in felsic rocks are not well understood. In
particular, the origin of the heavy Fe isotopic compositions (ie, high δ56Fe values, deviation …
particular, the origin of the heavy Fe isotopic compositions (ie, high δ56Fe values, deviation …
Metal stable isotopes in paleoceanography
Considered esoteric only a few years ago, research into the stable isotope geochemistry of
transition metals is moving into the geoscience mainstream. Although initial attention …
transition metals is moving into the geoscience mainstream. Although initial attention …
Mass spectrometry and natural variations of iron isotopes
An Erratum has been published for this article in Mass Spectrometry Reviews 25: 831–832,
2006. Although the processes that govern iron isotope variations in nature are just …
2006. Although the processes that govern iron isotope variations in nature are just …