{"refrec":{"BRefID":335850,"RR":"<b>Sweere, T.; Hennekam, R.; Vance, D.; Reichart, G.-J.</b> (2021). Molybdenum isotope constraints on the temporal development of sulfidic conditions during Mediterranean sapropel intervals. <i>Geochemical Perspectives Letters 17</i>: 16-20. <a href=\"https://doi.org/10.7185/geochemlet.2108\" target=\"_blank\">https://doi.org/10.7185/geochemlet.2108</a>","BEntID":332472,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Geochemical Perspectives Letters 17</i>: 16-20. <a href=\"https://doi.org/10.7185/geochemlet.2108\" target=\"_blank\">https://doi.org/10.7185/geochemlet.2108</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Sweere, T.; Hennekam, R.; Vance, D.; Reichart, G.-J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Sweere, T. <i>et al.</i>","Englishabstract":"<p>    Mediterranean sapropels represent some of the largest scale deoxygenation    events in recent Earth history. Here, we use high resolution Mo isotope    data for seven such events (sapropels S3 to S9) to semi-quantitatively    constrain past H<sub>2</sub>S concentrations using a new interpretive    framework. Bottom water H<sub>2</sub>S was present for all studied    sapropels, but the extent of redox changes varied considerably between    them, the ultimate driver likely being variations in monsoon strength.    Near-quantitative removal of Mo (δ<sup>98</sup>Mo > 2 ‰) during    deposition of sapropels S5 and S7 suggests predominantly highly sulfidic    conditions with long deep water residence times, comparable to the modern    Black Sea, whereas considerably lower δ<sup>98</sup>Mo values for sapropels    S3, S4, S8, and S9 (−0.4 to +0.9 ‰) imply mildly euxinic conditions only    (0 < H<sub>2</sub>S < 11 μmol/L). The high resolution data reveal    consistent temporal patterns that track the development of basin    restriction and euxinia over several kyr. These observations illustrate how    Mo isotopes can provide quantitative constraints on basin wide redox    changes on relatively short time scales.</p>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Molybdenum isotope constraints on the temporal development of sulfidic conditions during Mediterranean sapropel intervals","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":"sapropels; Mediterranean; anoxia; euxinia; Mo-isotopes; molybdenum","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-03-25","DateCreate":"2021-03-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000624494500001","VABBcode":null,"OpenAcc":1,"DOI":"10.7185/geochemlet.2108"},"refs":null,"anarec":{"AnaID":335850,"PubliDate":2021,"Pagination":"16-20","XtraPublOfAnaID":null,"ISBN":null,"Volume":"17","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":312070,"SerRR":"Geochemical Perspectives Letters. 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