{"refrec":{"BRefID":313355,"RR":"<b>Weiss, G.M.; de Bar, M.W.; Stolwijk, D.J.; Schouten, S.; Sinninghe Damsté, J.S.; van der Meer, M.T.J.</b> (2019). Paleosensitivity of hydrogen isotope ratios of long‐chain alkenones to salinity changes at the Chile Margin. <i>Paleoceanography and Paleoclimatology 34(6)</i>: 978-989. <a href=\"https://dx.doi.org/10.1029/2019pa003591\" target=\"_blank\">https://dx.doi.org/10.1029/2019pa003591</a>","BEntID":305719,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Paleoceanography and Paleoclimatology 34(6)</i>: 978-989. <a href=\"https://dx.doi.org/10.1029/2019pa003591\" target=\"_blank\">https://dx.doi.org/10.1029/2019pa003591</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Weiss, G.M.; de Bar, M.W.; Stolwijk, D.J.; Schouten, S.; Sinninghe Damsté, J.S.; van der Meer, M.T.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Weiss, G.M. <i>et al.</i>","Englishabstract":"Hydrogen isotope ratios of long‐chain alkenones (δ<sup>2</sup>H<SUB>C37</SUB>  ratios) have been shown to correlate with salinity in several culture studies. However, it is uncertain how applicable the δ<sup>2</sup>H<SUB>C37</SUB> ‐salinity relationship is to reconstruct past salinity. The δ<sup>2</sup>H<SUB>C37</SUB>  ratios were measured on sediments from a drill core (ODP site 1234) at the Chilean Margin covering the last ~150 kyr. High δ<sup>2</sup>H<SUB>C37</SUB>  values corresponded to glacial time periods and interglacial periods are characterized by lower δ<sup>2</sup>H<SUB>C37</SUB>  values, aligning with δ<sup>18</sup>O ratios measured on planktonic foraminifera from the same core. Effects of parameters such as species composition, the δ<sup>2</sup>H‐δ<sup>18</sup>O relationship used for ice volume corrections, and nutrient‐ or light‐controlled growth rate, did not appear to significantly alter δ<sup>2</sup>H<SUB>C37</SUB>  ratios at ODP 1234. We used linear regression equations from batch culture experiments, marine surface sediments, and suspended particulate organic matter to quantitatively characterize salinity changes over the last ~150 kyr at ODP 1234. However, most of these equations yielded larger salinity shifts than previously suggested, a phenomenon also observed for other δ<sup>2</sup>H<SUB>C37</SUB>  records. This suggests that the paleosensitivity of δ<sup>2</sup>H<SUB>C37</SUB>  ratios to salinity was larger in the geologic record than has been observed in any modern environment or laboratory settings, or that glacial to interglacial salinity shifts might have been larger than currently believed.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Paleosensitivity of hydrogen isotope ratios of long‐chain alkenones to salinity changes at the Chile Margin","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2019-12-01","DateCreate":"2019-07-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000474863700006","VABBcode":null,"OpenAcc":1,"DOI":"10.1029/2019pa003591"},"refs":null,"anarec":{"AnaID":313355,"PubliDate":2019,"Pagination":"978-989","XtraPublOfAnaID":null,"ISBN":null,"Volume":"34","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":292301,"SerRR":"Paleoceanography and Paleoclimatology. American Geophysical Union: Washington DC.  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