{"refrec":{"BRefID":417302,"RR":"<b>Fettweis, M.; Silori, S.; Adriaens, R.; Desmit, X.</b> (2025). Clay minerals and the stability of organic carbon in suspension along coastal to offshore transects. <i>Geochim. Cosmochim. Acta 395</i>: 229-237. <a href=\"https://dx.doi.org/10.1016/j.gca.2025.03.003\" target=\"_blank\">https://dx.doi.org/10.1016/j.gca.2025.03.003</a>","BEntID":415132,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Geochim. Cosmochim. Acta 395</i>: 229-237. <a href=\"https://dx.doi.org/10.1016/j.gca.2025.03.003\" target=\"_blank\">https://dx.doi.org/10.1016/j.gca.2025.03.003</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Fettweis, M.; Silori, S.; Adriaens, R.; Desmit, X.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Fettweis, M. <i>et al.</i>","Englishabstract":"Particulate (POC) and dissolved organic carbon (DOC) concentration, clay mineral content and composition and the suspended particulate matter (SPM) concentration have been analyzed in water samples taken along transects from the high turbid nearshore to the low turbid offshore on the North Sea shelf. The suspended POC has been classified into a mineral-associated (POC<sub>mineral</sub>), a slowly degrading (POC<sub>slow</sub>) and a fresh fraction (POC<sub>fres</sub>h). The POC<sub>mineral</sub> has been estimated based on the clay mineral composition and on literature data of the mineral specific surface area per g and the OC content per specific surface area. It consists of organic molecules adsorbed onto mineral surfaces and is thereby the most refractory fraction. The POC<sub>fresh</sub> content (% of POC<sub>fresh</sub> in SPM) has been calculated using the semi-empirical POC-SPM model of Fettweis et al. (2022) and is intrinsically labile. The POC<sub>slow</sub> content is refractory with variable rates of degradation. The total POC content of the SPM was between 2 and 11%, from which about 0.3-6.6% (0.1-2.1%) was POC<sub>fresh</sub> in spring (resp., winter). The POC<sub>mineral</sub> content was between 0.4% and 1.1% and decreased towards the offshore, meaning that the POC offshore is less refractory than nearshore. The organic molecules adsorbed onto clay minerals, are dynamically exchanging with the DOC, and thus influencing its fate and concentration. However this process is not sufficient to explain the increasing POC/DOC ratio with increasing SPM concentration, which is further explained by primary production, advection and diffusion, density gradients and seabed erosion. Our results highlight the difficulty and the necessity of estimating the respective sample-POC and DOC concentrations, fluxes and fates along SPM concentration gradients in coastal zones. This is needed as organo-mineral interactions influence the vertical dynamics and horizontal transport of SPM and have an impact on particles and organic carbon fluxes.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Clay minerals and the stability of organic carbon in suspension along coastal to offshore transects","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-09 01:32:50.570143","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Suspended particulate matter;Mineral-associated organic carbon;Clay minerals","OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2025-11-07","DateCreate":"2025-09-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001468199900001","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.gca.2025.03.003"},"refs":null,"anarec":{"AnaID":417302,"PubliDate":2025,"Pagination":"229-237","XtraPublOfAnaID":null,"ISBN":null,"Volume":"395","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42901,"SerRR":"Geochimica et Cosmochimica Acta. Elsevier: Oxford,New York etc..  ISSN 0016-7037; e-ISSN 1872-9533","StandardTitleSer":"Geochimica et Cosmochimica Acta","ISSN":"0016-7037","AbbrevSer":"Geochim. Cosmochim. Acta","StandardTitleMon":null,"StartPage":229,"Pages":9,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Fettweis","Firstname":"Michael","Initials":"M.","Affiliation":"OD Natural Environment, Royal Belgian Institute of Natural Sciences","Discriminator":null,"CorporateFlag":0,"BEntID":415132,"AutID":177647,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"OD Natuur","InsFSN":"Koninklijk Belgisch Instituut voor Natuurwetenschappen; Operationele Directie Natuurlijk Milieu","ORCID":"0000-0001-8845-6464","PersID":2770,"InsID":13002},{"AutName":"Silori","Firstname":"Saumya","Initials":"S.","Affiliation":"OD Natural Environment, Royal Belgian Institute of Natural Sciences","Discriminator":null,"CorporateFlag":0,"BEntID":415132,"AutID":605147,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"OD Natuur","InsFSN":"Koninklijk Belgisch Instituut voor Natuurwetenschappen; Operationele Directie Natuurlijk Milieu","ORCID":null,"PersID":44718,"InsID":13002},{"AutName":"Adriaens","Firstname":"Rieko","Initials":"R.","Affiliation":"Qmineral bvba","Discriminator":null,"CorporateFlag":0,"BEntID":415132,"AutID":377518,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":31132,"InsID":null},{"AutName":"Desmit","Firstname":"Xavier","Initials":"X.","Affiliation":"OD Natural Environment, Royal Belgian Institute of Natural Sciences","Discriminator":null,"CorporateFlag":0,"BEntID":415132,"AutID":490177,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"OD Natuur","InsFSN":"Koninklijk Belgisch Instituut voor Natuurwetenschappen; Operationele Directie Natuurlijk Milieu","ORCID":"0000-0003-4506-2339","PersID":8740,"InsID":13002}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":417346,"LibID":36,"BRefID":417302,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"417346","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"<p>Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site <br />en mag op geen enkele manier verder worden verspreid.</p>","FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":null,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Elsevier","City":"Oxford,New York etc."}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":415132,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":415132,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1016/j.gca.2025.03.003","externalID":"10.1016/j.gca.2025.03.003","URLTypeCode":"DOI","URLID":150860,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Lyssens, Liesbeth, L.","newSesDate":{"date":"2025-09-18 15:39:25.340000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Chisala, Chilekwa, C.","updSesDate":{"date":"2025-11-07 08:47:04.353000","timezone_type":3,"timezone":"Europe/Brussels"}}}