{"refrec":{"BRefID":290656,"RR":"<b>Jacob, D.E.; Wirth, R.; Agbaje, O.B.A.; Branson, O.; Eggins, S.M.</b> (2017). Planktic foraminifera form their shells via metastable carbonate phases. <i>Nature Comm. 8(1)</i>: 9 pp. <a href=\"https://dx.doi.org/10.1038/s41467-017-00955-0\" target=\"_blank\">https://dx.doi.org/10.1038/s41467-017-00955-0</a>","BEntID":282696,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Nature Comm. 8(1)</i>: 9 pp. <a href=\"https://dx.doi.org/10.1038/s41467-017-00955-0\" target=\"_blank\">https://dx.doi.org/10.1038/s41467-017-00955-0</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Jacob, D.E.; Wirth, R.; Agbaje, O.B.A.; Branson, O.; Eggins, S.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Jacob, D.E. <i>et al.</i>","Englishabstract":"The calcium carbonate shells of planktic foraminifera provide our most valuable geochemical archive of ocean surface conditions and climate spanning the last 100 million years, and play an important role in the ocean carbon cycle. These shells are preserved in marine sediments as calcite, the stable polymorph of calcium carbonate. Here, we show that shells of living planktic foraminifers <i>Orbulina universa</i> and <i>Neogloboquadrina dutertrei</i> originally form from the unstable calcium carbonate polymorph vaterite, implying a non-classical crystallisation pathway involving metastable phases that transform ultimately to calcite. The current understanding of how planktic foraminifer shells record climate, and how they will fare in a future high-CO<sub>2</sub> world is underpinned by analogy to the precipitation and dissolution of inorganic calcite. Our findings require a re-evaluation of this paradigm to consider the formation and transformation of metastable phases, which could exert an influence on the geochemistry and solubility of the biomineral calcite.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Planktic foraminifera form their shells via metastable carbonate phases","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-07 01:31:31.305416","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2017,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2017-11-09","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000414245200005","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41467-017-00955-0"},"refs":null,"anarec":{"AnaID":290656,"PubliDate":2017,"Pagination":"9 pp","XtraPublOfAnaID":null,"ISBN":null,"Volume":"8","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":198717,"SerRR":"Nature Communications. 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