{"refrec":{"BRefID":285439,"RR":"<b>Raddatz, J.; Liebetrau, V.; Trotter, J.; Rüggeberg, A.; Flögel, S.; Dullo, W.-C.; Eisenhauer, A.; Voigt, S.; McCulloch, M.</b> (2016). Environmental constraints on Holocene cold-water coral reef growth off Norway: insights from a multiproxy approach. <i>Paleoceanography 31(10)</i>: 1350-1367. <a href=\"https://dx.doi.org/10.1002/2016PA002974\" target=\"_blank\">https://dx.doi.org/10.1002/2016PA002974</a>","BEntID":277464,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Paleoceanography 31(10)</i>: 1350-1367. <a href=\"https://dx.doi.org/10.1002/2016PA002974\" target=\"_blank\">https://dx.doi.org/10.1002/2016PA002974</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Raddatz, J.; Liebetrau, V.; Trotter, J.; Rüggeberg, A.; Flögel, S.; Dullo, W.-C.; Eisenhauer, A.; Voigt, S.; McCulloch, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Raddatz, J. <i>et al.</i>","Englishabstract":"High-latitude cold-water coral (CWC) reefs are particularly susceptible due to enhanced CO<sub>2</sub> uptake in these regions. Using precisely dated (U/Th) CWCs (<i>Lophelia pertusa</i>) retrieved during research cruise POS 391 (Lopphavet 70.6°N, Oslofjord 59°N) we applied boron isotopes (δ<sup>11</sup>B), Ba/Ca, Li/Mg, and U/Ca ratios to reconstruct the environmental boundary conditions of CWC reef growth. The sedimentary record from these CWC reefs reveals a lack of corals between ~6.4 and 4.8 ka. The question remains if this phenomenon is related to changes in the carbonate system or other causes. The initial postglacial setting had elevated Ba/Ca ratios, indicative of meltwater fluxes showing a decreasing trend toward cessation at 6.4 ka with an oscillation pattern similar to continental glacier fluctuations. Downcore U/Ca ratios reveal an increasing trend, which is outside the range of modern U/Ca variability in <i>L. pertusa</i>, suggesting changes of seawater pH near 6.4 ka. The reconstructed bottom water temperature at Lopphavet reveals a striking similarity to Barent sea surface and subsea surface temperature records. We infer that meltwater pulses weakened the North Atlantic Current system, resulting in southward advances of cold and CO<sub>2</sub>-rich Arctic waters. A corresponding shift in the δ<sup>11</sup>B record from ~25.0‰ to ~27.0‰ probably implies enhanced pH up-regulation of the CWCs due to the higher pCO<sub>2</sub> concentrations of ambient seawater, which hastened mid-Holocene CWC reef decline on the Norwegian margin.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Environmental constraints on Holocene cold-water coral reef growth off Norway: insights from a multiproxy approach","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":"cold-water corals; Lophelia pertusa; boron isotopes; Holocene; pHupregulation; Li; Mg","OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2022-04-13","DateCreate":"2017-05-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000387775200004","VABBcode":null,"OpenAcc":0,"DOI":"10.1002/2016PA002974"},"refs":null,"anarec":{"AnaID":285439,"PubliDate":2016,"Pagination":"1350-1367","XtraPublOfAnaID":null,"ISBN":null,"Volume":"31","Issue":"10","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45633,"SerRR":"Paleoceanography. 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