Trace-element and stable-isotope composition of the Cyprideis torosa (Crustacea, Ostracoda) shell

dc.contributor.authorHolmes, J A
dc.contributor.authorDe Deckker, Patrick
dc.date.accessioned2021-10-07T22:59:16Z
dc.date.available2021-10-07T22:59:16Z
dc.date.issued2017
dc.date.updated2020-11-23T11:23:17Z
dc.description.abstractShells of Cyprideis, a widespread euryhaline ostracod, have commonly been used in geochemical investigations involving determinations of trace elements (especially magnesium and strontium) and isotopes (of oxygen, carbon and strontium). In this paper, we evaluate geochemical signatures in Cyprideis based on new and previously published data. Mg/Ca and Sr/Ca determinations of fossil shells that calcified in marine-type water have potential to reconstruct palaeotemperature and past water composition using empirical relationships derived from living ostracods recovered from in vitro cultures or natural settings. For shells that calcified in non-marine waters of contrasting composition, partitioning of trace metals from water into ostracod shells may differ, meaning that relationships developed for marine waters do not apply. However, variations in Mg/Ca and Sr/Ca in Cyprideis in continental settings may still provide valuable palaeohydrological information. Determinations of oxygen isotopes in Cyprideis shells are consistent with positive offsets from equilibrium, in common with other ostracod taxa: carbon-isotope values reflect the fact that Cyprideis is a detritivore. Oxygen-isotope analyses of Cyprideis shells from continental settings provide important palaeohydrological information. Strontium-isotope analyses of Cyprideis shells provide valuable records of mixing of marine and continental water in marginal-marine settings. Geochemical analyses of different morphotypes of Cyprideis lend support to suggestions that ecophenotypic variations are controlled by factors other than, or additional to, salinity.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0262-821Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/250551
dc.language.isoen_AUen_AU
dc.provenanceThis work is distributed under the Creative Commons Attribution 4.0 License.en_AU
dc.publisherGeological Society Publishing Houseen_AU
dc.rights© 2017 The Author(s). Published by The Geological Society of London for The Micropalaeontological Societyen_AU
dc.rights.licenseCreative Commons Attribution 4.0 Licenseen_AU
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_AU
dc.sourceJournal of Micropalaeontologyen_AU
dc.titleTrace-element and stable-isotope composition of the Cyprideis torosa (Crustacea, Ostracoda) shellen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue1en_AU
local.bibliographicCitation.lastpage49en_AU
local.bibliographicCitation.startpage38en_AU
local.contributor.affiliationHolmes, J A, University College Londonen_AU
local.contributor.affiliationDe Deckker, Patrick, College of Science, ANUen_AU
local.contributor.authoruidDe Deckker, Patrick, u8100493en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor040300 - GEOLOGYen_AU
local.identifier.absfor040600 - PHYSICAL GEOGRAPHY AND ENVIRONMENTAL GEOSCIENCEen_AU
local.identifier.absfor040200 - GEOCHEMISTRYen_AU
local.identifier.ariespublicationa383154xPUB6403en_AU
local.identifier.citationvolume36en_AU
local.identifier.doi10.1144/jmpaleo2015-024en_AU
local.identifier.scopusID2-s2.0-85011310541
local.identifier.thomsonID000393679500008
local.publisher.urlhttps://journal-of-micropalaeontology.net/index.htmlen_AU
local.type.statusPublished Versionen_AU

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