{"refrec":{"BRefID":352767,"RR":"<b>Marchegiano, M.; John, C.M.</b> (2022). Disentangling the impact of global and regional climate changes during the middle Eocene in the Hampshire Basin: new insights from carbonate clumped isotopes and ostracod assemblages. <i>Paleoceanography and Paleoclimatology 37(2)</i>: e2021PA004299. <a href=\"https://dx.doi.org/10.1029/2021PA004299\" target=\"_blank\">https://dx.doi.org/10.1029/2021PA004299</a>","BEntID":350476,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Paleoceanography and Paleoclimatology 37(2)</i>: e2021PA004299. <a href=\"https://dx.doi.org/10.1029/2021PA004299\" target=\"_blank\">https://dx.doi.org/10.1029/2021PA004299</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Marchegiano, M.; John, C.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Marchegiano, M.; John, C.M.","Englishabstract":"We present a novel multiproxy data set (bulk and clumped isotopes on gastropod shells and variations in ostracod assemblages) of the Hampshire Basin (Southern-England) that sheds light on the connection between the North Sea and the Atlantic Ocean through the English Channel during the deposition of the Barton clay formation (latest Lutetian<b>—</b>Bartonian, middle Eocene; ∼41–40&nbsp;Ma). During this time period, the English Channel operated as a gateway between the warmer Atlantic Ocean and the colder North Sea waters. High-latitude water mixing combined with the regional hydrological cycle and sea-level variations, may have contributed to mitigate the water temperatures in the Hampshire Basin, with an average recorded of ca. 25°C. In the uppermost part of the section the connection between the two water masses was limited or absent as evidenced by warmer (up to ca. 35°C) Atlantic Ocean temperatures in the Hampshire Basin. The large differences in average oxygen isotope composition of seawater (δ<sup>18</sup>O<sub>water</sub>) recorded (from δ<sup>18</sup>O<sub>water</sub> −1.7‰ to δ<sup>18</sup>O<sub>water</sub> of −0.7‰) evidenced large salinity differences between the Atlantic Ocean and the North Sea. Ostracods suggest that the temporary connection between those two water masses was caused by relative regional sea-level variations. This scenario could be partially linked to glacio-eustatic sea-level changes related to climate fluctuations probably associated with the MECO event.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Disentangling the impact of global and regional climate changes during the middle Eocene in the Hampshire Basin: new insights from carbonate clumped isotopes and ostracod assemblages","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":"Middle Eocene Climatic Optimum; clumped isotopes; Eocene marineostracods; paleoceanography; Hampshire Basin","OtherDescriptors":null,"Notes":null,"AnaPub":2022,"MonPub":null,"DateUpdate":"2022-06-22","DateCreate":"2022-06-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000763496800002","VABBcode":null,"OpenAcc":1,"DOI":"10.1029/2021PA004299"},"refs":null,"anarec":{"AnaID":352767,"PubliDate":2022,"Pagination":"e2021PA004299","XtraPublOfAnaID":null,"ISBN":null,"Volume":"37","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":292301,"SerRR":"Paleoceanography and Paleoclimatology. American Geophysical Union: Washington DC.  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