Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation

Considerable efforts have been made to calibrate the δ47 paleothermometer, which derives from the quantity of 13C-18O bonds in carbon dioxide produced during acid digestion of carbonate minerals versus its expected stochastic abundance, in a range of materials. However the impacts of precipitation r...

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Autores: Tang, Jianwu, Dietzel, Martin, Fernández, Álvaro, Tripati, Aradhna K., Rosenheim, Brad E.
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/376761
Acesso em linha:http://hdl.handle.net/10261/376761
Access Level:acceso abierto
Palavra-chave:Calcite
Carbon dioxide
Carbonate
Isotopic fractionation
Mineral
Ph
Precipitation (chemistry)
Spatial resolution
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spelling Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitationTang, JianwuDietzel, MartinFernández, ÁlvaroTripati, Aradhna K.Rosenheim, Brad E.CalciteCarbon dioxideCarbonateIsotopic fractionationMineralPhPrecipitation (chemistry)Spatial resolutionConsiderable efforts have been made to calibrate the δ47 paleothermometer, which derives from the quantity of 13C-18O bonds in carbon dioxide produced during acid digestion of carbonate minerals versus its expected stochastic abundance, in a range of materials. However the impacts of precipitation rate, ionic strength, and pH on carbonate δ47 values are still unclear. Here we present a set of 75 measurements of δ47 values from inorganic calcites grown under well-controlled experimental conditions, where we evaluate the impact on δ47 values of precipitation rate (logR=1.8-4.4μmol/m2/h), pH (8.3-10.5; NBS pH scale), and ionic strength (I=35-832mM). With the data available and at the current instrumental resolution, our study does not resolve any clear effects of pH, ionic strength, growth rate effects on measured δ47 when compared in magnitude to the effects on δ18O over most of the ranges of parameters sampled by our analyses. If these relationships exist, they must be smaller than our current ability to resolve them within our dataset. Under our experimental conditions, a δ47-temperature equation, which is apparently insensitive to variation in pH, precipitation rate, and ionic strength over the range of variables sampled, can be written asδ47=(0.0387±0.0072)×106/T2+(0.2532±0.0829)(r2=0.9998,p=0.009)where δ47 values were reported on the absolute δ47 reference frame after normalizing to conventional 25°C reaction temperature using an acid fractionation factor of -0.00141-°C-1.n this study, the part of inorganic calcite precipitation was funded by the European Scientific Foundation (ESF) project CASIOPEIA (DFG, Ei272/20-1/-2) and financially supported by the Austrian Science Fund (FWF I34-B06). J. Tang was supported by laboratory start-up funds granted to B.E. Rosenheim from the School of Science and Engineering of Tulane University, a considerable investment in technical staff that enabled the work performed in this manuscript. A. Tripati acknowledges support from Department of Energy BES grant DE-FG02-13ER16402, National Science Foundation grants from Instrumentation and Facilities, Low-Temperature Geochemistry, and Arctic Natural Sciences, ACS grant 51182-DNI2, a Hellman Fellowship, and a UCLA Career Development AwardPeer reviewedElsevier BVNational Science Foundation (US)European Science FoundationUniversity of CaliforniaAustrian Science FundConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/376761reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.gca.2014.03.005Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3767612026-05-22T06:33:51Z
dc.title.none.fl_str_mv Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
title Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
spellingShingle Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
Tang, Jianwu
Calcite
Carbon dioxide
Carbonate
Isotopic fractionation
Mineral
Ph
Precipitation (chemistry)
Spatial resolution
title_short Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
title_full Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
title_fullStr Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
title_full_unstemmed Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
title_sort Evaluation of kinetic effects on clumped isotope fractionation (δ47) during inorganic calcite precipitation
dc.creator.none.fl_str_mv Tang, Jianwu
Dietzel, Martin
Fernández, Álvaro
Tripati, Aradhna K.
Rosenheim, Brad E.
author Tang, Jianwu
author_facet Tang, Jianwu
Dietzel, Martin
Fernández, Álvaro
Tripati, Aradhna K.
Rosenheim, Brad E.
author_role author
author2 Dietzel, Martin
Fernández, Álvaro
Tripati, Aradhna K.
Rosenheim, Brad E.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv National Science Foundation (US)
European Science Foundation
University of California
Austrian Science Fund
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Calcite
Carbon dioxide
Carbonate
Isotopic fractionation
Mineral
Ph
Precipitation (chemistry)
Spatial resolution
topic Calcite
Carbon dioxide
Carbonate
Isotopic fractionation
Mineral
Ph
Precipitation (chemistry)
Spatial resolution
description Considerable efforts have been made to calibrate the δ47 paleothermometer, which derives from the quantity of 13C-18O bonds in carbon dioxide produced during acid digestion of carbonate minerals versus its expected stochastic abundance, in a range of materials. However the impacts of precipitation rate, ionic strength, and pH on carbonate δ47 values are still unclear. Here we present a set of 75 measurements of δ47 values from inorganic calcites grown under well-controlled experimental conditions, where we evaluate the impact on δ47 values of precipitation rate (logR=1.8-4.4μmol/m2/h), pH (8.3-10.5; NBS pH scale), and ionic strength (I=35-832mM). With the data available and at the current instrumental resolution, our study does not resolve any clear effects of pH, ionic strength, growth rate effects on measured δ47 when compared in magnitude to the effects on δ18O over most of the ranges of parameters sampled by our analyses. If these relationships exist, they must be smaller than our current ability to resolve them within our dataset. Under our experimental conditions, a δ47-temperature equation, which is apparently insensitive to variation in pH, precipitation rate, and ionic strength over the range of variables sampled, can be written asδ47=(0.0387±0.0072)×106/T2+(0.2532±0.0829)(r2=0.9998,p=0.009)where δ47 values were reported on the absolute δ47 reference frame after normalizing to conventional 25°C reaction temperature using an acid fractionation factor of -0.00141-°C-1.
publishDate 2014
dc.date.none.fl_str_mv 2014
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/376761
url http://hdl.handle.net/10261/376761
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.gca.2014.03.005
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812455

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