FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4236010733> ?p ?o ?g. }

• W4236010733 endingPage "3015" @default.
• W4236010733 startingPage "2995" @default.
• W4236010733 abstract "Application of the Fe isotope system to studies of natural rocks and fluids requires precise knowledge of equilibrium Fe isotope fractionation factors among various aqueous Fe species and minerals. These are difficult to obtain at the low temperatures at which Fe isotope fractionation is expected to be largest and requires careful distinction between kinetic and equilibrium isotope effects. A detailed investigation of Fe isotope fractionation between [FeIII(H2O)6]3+ and hematite at 98°C allows the equilibrium 56Fe/54Fe fractionation to be inferred, which we estimate at 103lnαFe(III)-hematite = −0.10 ± 0.20‰. We also infer that the slope of Fe(III)-hematite fractionation is modest relative to 106/T2, which would imply that this fractionation remains close to zero at lower temperatures. These results indicate that Fe isotope compositions of hematite may closely approximate those of the fluids from which they precipitated if equilibrium isotopic fractionation is assumed, allowing inference of δ56Fe values of ancient fluids from the rock record. The equilibrium Fe(III)-hematite fractionation factor determined in this study is significantly smaller than that obtained from the reduced partition function ratios calculated for [FeIII(H2O)6]3+ and hematite based on vibrational frequencies and Mössbauer shifts by Polyakov 1997, Polyakov and Mineev 2000, and Schauble et al. (2001), highlighting the importance of experimental calibration of Fe isotope fractionation factors. In contrast to the long-term (up to 203 d) experiments, short-term experiments indicate that kinetic isotope effects dominate during rapid precipitation of ferric oxides. Precipitation of hematite over ∼12 h produces a kinetic isotope fractionation where 103lnαFe(III)-hematite = +1.32 ± 0.12‰. Precipitation under nonequilibrium conditions, however, can be recognized through stepwise dissolution in concentrated acids. As expected, our results demonstrate that dissolution by itself does not measurably fractionate Fe isotopes." @default.
• W4236010733 created "2022-05-12" @default.
• W4236010733 creator A5000007230 @default.
• W4236010733 creator A5032863816 @default.
• W4236010733 creator A5082561372 @default.
• W4236010733 date "2002-09-01" @default.
• W4236010733 modified "2023-10-11" @default.
• W4236010733 title "Kinetic and equilibrium Fe isotope fractionation between aqueous Fe(III) and hematite" @default.
• W4236010733 cites W1547362528 @default.
• W4236010733 cites W1587790345 @default.
• W4236010733 cites W1965628007 @default.
• W4236010733 cites W1970487134 @default.
• W4236010733 cites W1978052340 @default.
• W4236010733 cites W2011564188 @default.
• W4236010733 cites W2017913935 @default.
• W4236010733 cites W2021210543 @default.
• W4236010733 cites W2028061899 @default.
• W4236010733 cites W2033986829 @default.
• W4236010733 cites W2047397895 @default.
• W4236010733 cites W2050659073 @default.
• W4236010733 cites W2052099565 @default.
• W4236010733 cites W2059497021 @default.
• W4236010733 cites W2060623225 @default.
• W4236010733 cites W2061338944 @default.
• W4236010733 cites W2066340240 @default.
• W4236010733 cites W2066912677 @default.
• W4236010733 cites W2067229051 @default.
• W4236010733 cites W2076721021 @default.
• W4236010733 cites W2077129344 @default.
• W4236010733 cites W2082070875 @default.
• W4236010733 cites W2089991605 @default.
• W4236010733 cites W2091601396 @default.
• W4236010733 cites W2092451240 @default.
• W4236010733 cites W2109410203 @default.
• W4236010733 cites W2113090010 @default.
• W4236010733 cites W2137340366 @default.
• W4236010733 cites W2160397766 @default.
• W4236010733 cites W2162378760 @default.
• W4236010733 cites W2163058686 @default.
• W4236010733 cites W3025432410 @default.
• W4236010733 doi "https://doi.org/10.1016/s0016-7037(02)00902-x" @default.
• W4236010733 hasPublicationYear "2002" @default.
• W4236010733 type Work @default.
• W4236010733 citedByCount "256" @default.
• W4236010733 countsByYear W42360107332012 @default.
• W4236010733 countsByYear W42360107332013 @default.
• W4236010733 countsByYear W42360107332014 @default.
• W4236010733 countsByYear W42360107332015 @default.
• W4236010733 countsByYear W42360107332016 @default.
• W4236010733 countsByYear W42360107332017 @default.
• W4236010733 countsByYear W42360107332018 @default.
• W4236010733 countsByYear W42360107332019 @default.
• W4236010733 countsByYear W42360107332020 @default.
• W4236010733 countsByYear W42360107332021 @default.
• W4236010733 countsByYear W42360107332022 @default.
• W4236010733 countsByYear W42360107332023 @default.
• W4236010733 crossrefType "journal-article" @default.
• W4236010733 hasAuthorship W4236010733A5000007230 @default.
• W4236010733 hasAuthorship W4236010733A5032863816 @default.
• W4236010733 hasAuthorship W4236010733A5082561372 @default.
• W4236010733 hasConcept C107872376 @default.
• W4236010733 hasConcept C113196181 @default.
• W4236010733 hasConcept C121332964 @default.
• W4236010733 hasConcept C127313418 @default.
• W4236010733 hasConcept C145269806 @default.
• W4236010733 hasConcept C164304813 @default.
• W4236010733 hasConcept C185592680 @default.
• W4236010733 hasConcept C195511166 @default.
• W4236010733 hasConcept C199289684 @default.
• W4236010733 hasConcept C2779131772 @default.
• W4236010733 hasConcept C2779334269 @default.
• W4236010733 hasConcept C43617362 @default.
• W4236010733 hasConcept C58364064 @default.
• W4236010733 hasConcept C62520636 @default.
• W4236010733 hasConcept C69928629 @default.
• W4236010733 hasConcept C97428945 @default.
• W4236010733 hasConceptScore W4236010733C107872376 @default.
• W4236010733 hasConceptScore W4236010733C113196181 @default.
• W4236010733 hasConceptScore W4236010733C121332964 @default.
• W4236010733 hasConceptScore W4236010733C127313418 @default.
• W4236010733 hasConceptScore W4236010733C145269806 @default.
• W4236010733 hasConceptScore W4236010733C164304813 @default.
• W4236010733 hasConceptScore W4236010733C185592680 @default.
• W4236010733 hasConceptScore W4236010733C195511166 @default.
• W4236010733 hasConceptScore W4236010733C199289684 @default.
• W4236010733 hasConceptScore W4236010733C2779131772 @default.
• W4236010733 hasConceptScore W4236010733C2779334269 @default.
• W4236010733 hasConceptScore W4236010733C43617362 @default.
• W4236010733 hasConceptScore W4236010733C58364064 @default.
• W4236010733 hasConceptScore W4236010733C62520636 @default.
• W4236010733 hasConceptScore W4236010733C69928629 @default.
• W4236010733 hasConceptScore W4236010733C97428945 @default.
• W4236010733 hasIssue "17" @default.
• W4236010733 hasLocation W42360107331 @default.
• W4236010733 hasOpenAccess W4236010733 @default.
• W4236010733 hasPrimaryLocation W42360107331 @default.
• W4236010733 hasRelatedWork W1967564482 @default.
• W4236010733 hasRelatedWork W1989034547 @default.

• next