{"refrec":{"BRefID":349413,"RR":"<b>Humphreys, M.P.; Meesters, E.H.; de Haas, H.; Karancz, S.; Delaigue, L.; Bakker, K.; Duineveld, G.; de Goeyse, S.; Haas, A.F.; Mienis, F.; Ossebaar, S.; van Duyl, F.C.</b> (2022). Dissolution of a submarine carbonate platform by a submerged lake of acidic seawater. <i>Biogeosciences 19(2)</i>: 347-358. <a href=\"https://dx.doi.org/10.5194/bg-19-347-2022\" target=\"_blank\">https://dx.doi.org/10.5194/bg-19-347-2022</a>","BEntID":347108,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Biogeosciences 19(2)</i>: 347-358. <a href=\"https://dx.doi.org/10.5194/bg-19-347-2022\" target=\"_blank\">https://dx.doi.org/10.5194/bg-19-347-2022</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Humphreys, M.P.; Meesters, E.H.; de Haas, H.; Karancz, S.; Delaigue, L.; Bakker, K.; Duineveld, G.; de Goeyse, S.; Haas, A.F.; Mienis, F.; Ossebaar, S.; van Duyl, F.C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Humphreys, M.P. <i>et al.</i>","Englishabstract":"<p>    Submarine sinkholes are found on carbonate platforms around the world. They    are thought to form and grow when groundwater interactions generate    conditions corrosive to carbonate minerals. Because their morphology can    restrict mixing and water exchange, the effects of biogeochemical processes    can accumulate such that the sinkhole water properties considerably diverge    from the surrounding ocean. Studies of sinkhole waters can therefore reveal    new insights into marine biogeochemical cycles; thus sinkholes can be    considered “natural laboratories” where the response of marine ecosystems    to environmental variations can be investigated. We conducted the first    measurements in recently discovered sinkholes on Luymes Bank, part of Saba    Bank in the Caribbean Netherlands. Our measurements revealed a plume of gas    bubbles rising from the seafloor in one of the sinkholes, which contained aconstrained body of dense, low-oxygen ([O<sub>2</sub>] = 60.2 ± 2.6 µmol kg    <sup>−1</sup>), acidic (pH<sub>T</sub> = 6.24 ± 0.01) seawater that we term    the “acid lake”. Here, we investigate the physical and biogeochemical    processes that gave rise to and sustain the acid lake, the chemistry of    which is dominated by the bubble plume. We determine the provenance and    fate of the acid lake's waters, which we deduce must be continuously    flowing through. We show that the acid lake is actively dissolving the    carbonate platform, so the bubble plume may provide a novel mechanism for    submarine sinkhole formation and growth. It is likely that the bubble plume    is ephemeral and that other currently non-acidic sinkholes on Luymes Bank    have previously experienced acid lake phases. Conditions within the acid    lake were too extreme to represent future marine environmental responses to    anthropogenic CO<sub>2</sub> emissions on human timescales but may reflect    the impact of proposed schemes to mitigate climate change by the deliberate    addition of CO<sub>2</sub> and/or alkalinity to seawater. Other Luymes Bank    sinkholes did host conditions analogous to projections for the end of the    21st century and could provide a venue for studies on the impacts of    anthropogenic CO<sub>2</sub> uptake by the ocean.</p>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Dissolution of a submarine carbonate platform by a submerged lake of acidic seawater","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":2022,"MonPub":null,"DateUpdate":"2022-02-07","DateCreate":"2022-01-31","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000748748700001","VABBcode":null,"OpenAcc":1,"DOI":"10.5194/bg-19-347-2022"},"refs":null,"anarec":{"AnaID":349413,"PubliDate":2022,"Pagination":"347-358","XtraPublOfAnaID":null,"ISBN":null,"Volume":"19","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":68092,"SerRR":"<b>Gattuso, J.P.; Kesselmeier, J. 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