Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-6893
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dc.contributor.authorBrosset, Cornélia-
dc.contributor.authorHöche, Nils-
dc.contributor.authorShirai, Kotaro-
dc.contributor.authorMertz-Kraus, Regina-
dc.contributor.authorSchöne, Bernd R.-
dc.date.accessioned2022-04-20T10:42:34Z-
dc.date.available2022-04-20T10:42:34Z-
dc.date.issued2022-
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/6904-
dc.description.abstractBivalve shells serve as powerful high-resolution paleoclimate archives. However, the number of reliable temperature proxies is limited. It has remained particularly difficult to extract temperature signals from shell Sr/Ca, although Sr is routinely employed in other biogenic aragonites. In bivalves, Sr/Ca is linked to the prevailing microstructure and is sometimes affected by kinetics. Here, the hypothesis is tested that temperature can be reconstructed from shell Sr/Ca once microstructure and/or growth-rate-related bias has been mathematically eliminated. Therefore, the relationship between Sr/Ca and increment width, as well as biomineral unit size, has been studied in three different shell portions of field-grown Arctica islandica specimens. Subsequently, microstructure and/or growth-rate-related variation was removed from Sr/Ca data and residuals compared to temperature. As demonstrated, the hypothesis could not be verified. Even after detrending, Sr/Ca remained positively correlated to water temperature, which contradicts thermodynamic expectations and findings from inorganic aragonite. Any temperature signal potentially recorded by shell Sr/Ca is overprinted by other environmental forcings. Unless these variables are identified, it will remain impossible to infer temperature from Sr/Ca. Given the coupling with the biomineral unit size, a detailed characterization of the microstructure should remain an integral part of subsequent attempts to reconstruct temperature from Sr/Ca.en_GB
dc.description.sponsorshipGefördert durch die Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 491381577-
dc.language.isoengde
dc.rightsCC BY*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subject.ddc550 Geowissenschaftende_DE
dc.subject.ddc550 Earth sciencesen_GB
dc.subject.ddc560 Paläontologiede_DE
dc.subject.ddc560 Paleontologyen_GB
dc.titleStrong coupling between biomineral morphology and Sr/Ca of Arctica islandica (Bivalvia) : implications for Shell Sr/Ca-based temperature estimatesen_GB
dc.typeZeitschriftenaufsatzde
dc.identifier.doihttp://doi.org/10.25358/openscience-6893-
jgu.type.contenttypeScientific articlede
jgu.type.dinitypearticleen_GB
jgu.type.versionPublished versionde
jgu.type.resourceTextde
jgu.organisation.departmentFB 09 Chemie, Pharmazie u. Geowissensch.de
jgu.organisation.number7950-
jgu.organisation.nameJohannes Gutenberg-Universität Mainz-
jgu.rights.accessrightsopenAccess-
jgu.journal.titleMineralsde
jgu.journal.volume12de
jgu.journal.issue5de
jgu.pages.alternative500de
jgu.publisher.year2022-
jgu.publisher.nameMPDIde
jgu.publisher.placeBaselde
jgu.publisher.issn2075-163Xde
jgu.organisation.placeMainz-
jgu.subject.ddccode550de
jgu.subject.ddccode560de
jgu.publisher.doi10.3390/min12050500de
jgu.organisation.rorhttps://ror.org/023b0x485-
jgu.subject.dfgNaturwissenschaften-
Appears in collections:DFG-491381577-G

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