{"refrec":{"BRefID":247010,"RR":"<b>Bornemann, A; Norris, D; Lyman, A; D'haenens, S.; Groeneveld, J; Rohl, U; Farley, A; Speijer, R.P.</b> (2014). Persistent environmental change after the Paleocene-Eocene Thermal Maximum in the eastern North Atlantic. <i>Earth Planet. Sci. Lett. 394</i>: 70-81. <a href=\"http://dx.doi.org/10.1016/j.epsl.2014.03.017\" target=\"_blank\">dx.doi.org/10.1016/j.epsl.2014.03.017</a>","BEntID":238710,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Earth Planet. Sci. Lett. 394</i>: 70-81. <a href=\"https://dx.doi.org/10.1016/j.epsl.2014.03.017\" target=\"_blank\">https://dx.doi.org/10.1016/j.epsl.2014.03.017</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bornemann, A; Norris, D; Lyman, A; D'haenens, S.; Groeneveld, J; Rohl, U; Farley, A; Speijer, R.P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bornemann, A <i>et al.</i>","Englishabstract":"The Paleocene–Eocene Thermal Maximum (PETM; ~56 Ma) is associated with abrupt climate change, carbon cycle perturbation, ocean acidification, as well as biogeographic shifts in marine and terrestrial biota that were largely reversed as the climatic transient waned. We report a clear exception to the behavior of the PETM as a reversing climatic transient in the eastern North Atlantic (Deep-Sea Drilling Project Site 401, Bay of Biscay) where the PETM initiates a greatly prolonged environmental change compared to other places on Earth where records exist. The observed environmental perturbation extended well past the <i>d</i><sup>13</sup>C recovery phase and up to 650 kyr after the PETM onset according to our extraterrestrial <sup>3</sup>He-based age-model. We observe a strong decoupling of planktic foraminiferal <i>d</i><sup>18</sup>O and Mg/Ca values during the PETM <i>d</i><sup>13</sup>C recovery phase, which in combination with results from helium isotopes and clay mineralogy, suggests that the PETM triggered a hydrologic change in western Europe that increased freshwater flux and the delivery of weathering products to the eastern North Atlantic. This state change persisted long after the carbon-cycle perturbation had stopped. We hypothesize that either long-lived continental drainage patterns were altered by enhanced hydrological cycling induced by the PETM, or alternatively that the climate system in the hinterland area of Site 401 was forced into a new climate state that was not easily reversed in the aftermath of the PETM.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Persistent environmental change after the Paleocene-Eocene Thermal Maximum in the eastern North Atlantic","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":"PETM; carbon isotope excursion; paleoclimatology; paleoceanography;isotope geochemistry","OtherDescriptors":null,"Notes":null,"AnaPub":2014,"MonPub":null,"DateUpdate":"2015-08-07","DateCreate":"2015-05-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000335613300008","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.epsl.2014.03.017"},"refs":null,"anarec":{"AnaID":247010,"PubliDate":2014,"Pagination":"70-81","XtraPublOfAnaID":null,"ISBN":null,"Volume":"394","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42615,"SerRR":"Earth and Planetary Science Letters. 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