{"refrec":{"BRefID":361720,"RR":"<b>O'Hora, H.E.; Petersen, S.V.; Vellekoop, J.; Jones, M.M.; Scholz, S.R.</b> (2022). Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe. <i>Clim. Past 18(9)</i>: 1963-1982. <a href=\"https://dx.doi.org/10.5194/cp-18-1963-2022\" target=\"_blank\">https://dx.doi.org/10.5194/cp-18-1963-2022</a>","BEntID":359436,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Clim. Past 18(9)</i>: 1963-1982. <a href=\"https://dx.doi.org/10.5194/cp-18-1963-2022\" target=\"_blank\">https://dx.doi.org/10.5194/cp-18-1963-2022</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"O'Hora, H.E.; Petersen, S.V.; Vellekoop, J.; Jones, M.M.; Scholz, S.R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"O'Hora, H.E. <i>et al.</i>","Englishabstract":"Paleotemperature reconstructions of the end-Cretaceous interval document local and global climate trends, some driven by greenhouse gas emissions from Deccan Traps volcanism and associated feedbacks. Here, we present a new clumped-isotope-based paleotemperature record derived from fossil bivalves from the Maastrichtian type region in southeastern Netherlands and northeastern Belgium. Clumped isotope data document a mean temperature of <span class=\"inline-formula\">20.4±3.8</span> <span class=\"inline-formula\"><sup>∘</sup></span>C, consistent with other Maastrichtian temperature estimates, and an average seawater <span class=\"inline-formula\"><i>δ</i><sup>18</sup></span>O&nbsp;value of <span class=\"inline-formula\">0.2±0.8 ‰</span> VSMOW for the region during the latest Cretaceous (67.1–66.0 Ma). A notable temperature increase at <span class=\"inline-formula\">∼66.4</span> Ma is interpreted to be a regional manifestation of the globally defined Late Maastrichtian Warming Event, linking Deccan Traps volcanic CO<span class=\"inline-formula\"><sub>2</sub></span> emissions to climate change in the Maastricht region. Fluctuating seawater <span class=\"inline-formula\"><i>δ</i><sup>18</sup></span>O values coinciding with temperature changes suggest alternating influences of warm, salty southern-sourced waters and cooler, fresher northern-sourced waters from the Arctic Ocean. This new paleotemperature record contributes to the understanding of regional and global climate response to large-scale volcanism and ocean circulation changes leading up to a catastrophic mass extinction.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-11 01:32:58.995257","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2022,"MonPub":null,"DateUpdate":"2023-03-08","DateCreate":"2023-03-06","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000848201800001","VABBcode":null,"OpenAcc":1,"DOI":"10.5194/cp-18-1963-2022"},"refs":null,"anarec":{"AnaID":361720,"PubliDate":2022,"Pagination":"1963-1982","XtraPublOfAnaID":null,"ISBN":null,"Volume":"18","Issue":"9","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":220505,"SerRR":"Climate of the Past. 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