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dc.contributor.authorEvans, David
dc.contributor.authorGray, William R.
dc.contributor.authorRae, James W. B.
dc.contributor.authorGreenop, Rosanna
dc.contributor.authorWebb, Paul B.
dc.contributor.authorPenkman, Kirsty
dc.contributor.authorKroger, Roland
dc.contributor.authorAllison, Nicola
dc.date.accessioned2021-09-08T23:40:02Z
dc.date.available2021-09-08T23:40:02Z
dc.date.issued2020-09-09
dc.identifier.citationEvans , D , Gray , W R , Rae , J W B , Greenop , R , Webb , P B , Penkman , K , Kroger , R & Allison , N 2020 , ' Trace and major element incorporation into amorphous calcium carbonate (ACC) precipitated from seawater ' , Geochimica et Cosmochimica Acta , vol. In press . https://doi.org/10.1016/j.gca.2020.08.034en
dc.identifier.issn0016-7037
dc.identifier.otherPURE: 269948996
dc.identifier.otherPURE UUID: 29b5004c-69dc-4a81-91d5-b0648b8556c7
dc.identifier.otherORCID: /0000-0003-3720-1917/work/80257738
dc.identifier.otherORCID: /0000-0003-3904-2526/work/80257841
dc.identifier.otherORCID: /0000-0003-2532-344X/work/80257933
dc.identifier.otherScopus: 85091750263
dc.identifier.otherWOS: 000579790500017
dc.identifier.urihttp://hdl.handle.net/10023/23926
dc.description.abstractAmorphous calcium carbonate (ACC) has been identified or inferred to exist in many groups of marine organisms that produce biominerals widely used as geochemical archives (e.g. foraminifera, molluscs, echinoderms). However, little is known about trace element incorporation into ACC, and thus it is not understood how precipitation through an ACC precursor might impact the fidelity of climate proxies and biomineralisation models built on the skeletal geochemistry of these marine calcifiers. To address this, we investigated the incorporation of Li, B, Na, Mg, Mn, Sr, Ba, and U into inorganic amorphous calcium magnesium carbonates precipitated from seawater under a variety of different carbonate chemistries, Mg/Ca ratios, and in the presence of aspartic and glutamic acid, two of the most common intracrystalline amino acids found in foraminifera and corals. ACC is highly enriched in most of these trace elements relative to the crystalline carbonates yet similar in some respects in terms of the factors influencing trace element partitioning. For example, ACC B/Ca is sensitive to the carbonate system, whilst Mg/Ca and Sr/Ca are largely a function of their respective ratio in seawater. In general, we find that most of the variance in the distribution coefficients of the other trace elements can be explained by some combination of the seawater carbonate chemistry and the seawater or ACC Mg/Ca ratio.
dc.language.isoeng
dc.relation.ispartofGeochimica et Cosmochimica Actaen
dc.rightsCopyright © 2020 Elsevier Ltd. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.gca.2020.08.034en
dc.subjectGE Environmental Sciencesen
dc.subjectDASen
dc.subject.lccGEen
dc.titleTrace and major element incorporation into amorphous calcium carbonate (ACC) precipitated from seawateren
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews.St Andrews Isotope Geochemistryen
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews.Marine Alliance for Science & Technology Scotlanden
dc.identifier.doihttps://doi.org/10.1016/j.gca.2020.08.034
dc.description.statusPeer revieweden
dc.date.embargoedUntil2021-09-09


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