Calcium isotopic signatures of depleted mid-ocean ridge basalts from the northeastern Pacific
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Oceanology and Limnology"
DOI: 10.1007/s00343-020-0045-2
Abstract: A number of high-temperature processes (e.g., melt-rock reactions, metasomatism, partial melting) can produce significant Ca isotopic fractionation and heterogeneity in the mantle, but the mechanism for such fractionation remains obscure. To investigate the effect of… read more here.
Keywords: mantle partial; depleted mid; partial melting; isotopic fractionation ... See more keywords
Magnesium isotopic fractionation during basalt differentiation as recorded by evolved magmas
Sign Up to like & getrecommendations! Published in 2021 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2021.116954
Abstract: Abstract Magnesium isotopic fractionation during basalt differentiation is commonly thought to be negligible at current levels of analytical precision. However, Mg isotopic variation of ∼ 0.4 ‰ ( δ 26 Mg) can be observed in… read more here.
Keywords: basalt differentiation; fractionation; isotopic fractionation;
Reassessment of the C-13/C-12 and C-14/C-12 isotopic fractionation ratio and its impact on high-precision radiocarbon dating
Sign Up to like & getrecommendations! Published in 2017 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2017.05.038
Abstract: Abstract The vast majority of radiocarbon measurement results (14C/12C isotopic ratios or sample activities) are corrected for isotopic fractionation processes (measured as 13C/12C isotopic ratios) that occur in nature, in sample preparation and measurement. In… read more here.
Keywords: fractionation; fractionation ratio; isotopic fractionation; radiocarbon ... See more keywords
Effects of surface structural disorder and surface coverage on isotopic fractionation during Zn(II) adsorption onto quartz and amorphous silica surfaces
Sign Up to like & getrecommendations! Published in 2017 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2017.08.003
Abstract: Abstract Metal ion-mineral surface interactions and the attendant isotopic fractionation depend on the properties of the mineral surface and the local atomic-level chemical environment. However, these factors have not been systematically examined for phases of… read more here.
Keywords: fractionation; surface; surface coverage; isotopic fractionation ... See more keywords
Lithium isotope fractionation by diffusion in minerals Part 2: Olivine
Sign Up to like & getrecommendations! Published in 2017 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2017.09.001
Abstract: Abstract Recent experiments have shown that lithium isotopes can be significantly fractionated by diffusion in silicate liquids and in augite. Here we report new laboratory experiments that document similarly large lithium isotopic fractionation by diffusion… read more here.
Keywords: fractionation; isotopic fractionation; lithium; olivine ... See more keywords
Boron isotopic fractionation during adsorption by calcite – Implication for the seawater pH proxy
Sign Up to like & getrecommendations! Published in 2018 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2018.08.025
Abstract: Abstract Although adsorption at the solid surface is the first step controlling boron incorporation in the crystal lattice during the standard growth mechanism of calcite and aragonite, little is known about the identity, structure and… read more here.
Keywords: adsorption; isotopic fractionation; isotopic; isotopic composition ... See more keywords
Lithium isotopic fractionation during weathering and erosion of shale
Sign Up to like & getrecommendations! Published in 2021 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2020.12.006
Abstract: Abstract Clay weathering in shales is an important component of the global Li budget because Li is mobilized from Li-rich clay minerals and shale represents about one quarter of the exposed rocks on Earth. We… read more here.
Keywords: water; soil; isotopic fractionation; 7li values ... See more keywords
Boron and molybdenum isotopic fractionation during crustal anatexis: Constraints from the Conadong leucogranites in the Himalayan Block, South Tibet
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DOI: 10.1016/j.gca.2021.01.005
Abstract: Abstract Partial melts derived from crustal anatexis exhibit large variations in field characteristics, composition, and isotope geochemistry. The relative influence of melting process and magmatic differentiation on such heterogeneity is a subject of ongoing debate.… read more here.
Keywords: isotopic fractionation; isotopic; himalayan block; leucogranites himalayan ... See more keywords
Potassium isotopic fractionation during clay adsorption
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DOI: 10.1016/j.gca.2021.04.027
Abstract: Abstract Clay adsorption is a critical process responsible for the mobilization and cycling of potassium (K) on Earth’s surface. Recent studies emphasized the potential of using stable K isotopes (δ41K) to understand chemical weathering. However,… read more here.
Keywords: clay adsorption; fractionation; isotopic fractionation;
High Temperature Evaporation and Isotopic Fractionation of K and Cu
Sign Up to like & getrecommendations! Published in 2021 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2021.09.035
Abstract: Abstract The chemical and isotopic signatures of moderately volatile elements are useful for understanding processes of volatile depletion in planetary formation and differentiation. However, the fractionation factors between gas and melt phases during evaporation that… read more here.
Keywords: fractionation; evaporation; evaporation isotopic; isotopic fractionation ... See more keywords
Thallium isotopic fractionation in industrial process of pyrite smelting and environmental implications.
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DOI: 10.1016/j.jhazmat.2019.121378
Abstract: Thallium (Tl) is typical rare element with severe toxicity comparable to Hg and Pb. To track Tl pollution, isotopic fractionation of Tl was evaluated during pyrite smelting for sulfuric acid production. Large variations in Tl… read more here.
Keywords: pyrite smelting; ash 205tl; fractionation; isotopic fractionation ... See more keywords