{"refrec":{"BRefID":57447,"RR":"<b>Jacobs, P.; Sevens, E.</b> (1993). Middle Eocene sequence stratigraphy in the Balegem quarry (Western Belgium, Southern Bight North Sea). <i>Bull. Belg. Ver. Geologie = Bull. Soc. Belg. Geol. 102(1-2)</i>: 203-213, 1 pl.","BEntID":2615,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Bull. Belg. Ver. Geologie = Bull. Soc. Belg. Geol. 102(1-2)</i>: 203-213, 1 pl.","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Jacobs, P.; Sevens, E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Jacobs, P.; Sevens, E.","Englishabstract":"Application of sequence stratigraphy principles in a classic outcrop of a Middle Eocene shallow marine sediment series (Balegem, Western Belgium) allowed detailed sediment genesis reconstruction. The lowermost sequence consists of vertical and progradational aggradation of Vlierzele Member sands. Remnants of the missing Aalter Formation are included in the basis of the Lede Formation, forming a sequence with a mainly stepwise transgressive character as underlined by its stacked retrogradational pattern of several parasequences. The general occurrence of the calcareous sandstone layers document these higher order relative sea level fluctuations as iron sulfate reduction seems to be responsible for the carbonate precipitations in zones of mixing-fluid migrations. The uppermost sequence (basal part of the Maldegem Formation) consists of 2 stacked finning upward parasequences of transgressive and regressive but more distal character.","AbstractOtherLang":"L'application des principes de la stratigraphie séquentielle sur une série de sédiments marins de faible profondeur d'âge Eocène Moyen exposée dans un affleurement classique (Balegem, Belgique Occidentale), a permis de reconstruire en détail la génèse des sédiments. La séquence inférieure consiste d'aggradation verticale, puis progradationelle des sables du Membre de Vlierzele. Des éléments remaniés de la Formation d' Aalter (manquante) sont incorporés dans la base de la Formation de Lede, qui forme une séquence à charactère essentiellement transgressif mais périodique, comme prouve la succession verticale de diverses paraséquences. La présence générale des bancs de gres calcareux souligne les fluctuations relatives du niveau de la mer d'ordre supérieur, comme la réduction du sulphate de fer semble être responsable pour la précipitation du carbonate dans des zones de migration de fluides mixtes. La séquence supérieure (partie basale de la Formation de Maldegem) consiste de 2 séquences superposées à granuloclassement normal à charactère transgressif puis régressif, mais d'origine plus distale.","BibLvlCode":"AS","StandardTitle":"Middle Eocene sequence stratigraphy in the Balegem quarry (Western Belgium, Southern Bight North Sea)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":"Western Belgium; Middle Eocene; sequence stratigraphy; systems tracts","Notes":null,"AnaPub":1993,"MonPub":null,"DateUpdate":"2008-06-13","DateCreate":"2004-02-13","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":57447,"PubliDate":1993,"Pagination":"203-213, 1 pl.","XtraPublOfAnaID":null,"ISBN":null,"Volume":"102","Issue":"1-2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45020,"SerRR":"Bulletin van de Belgische Vereniging voor Geologie = Bulletin de la Société Belge de Géologie. Belgische Vereniging voor Geologie = Société Belge de Géologie: Brussel.  ISSN 0379-1807; e-ISSN 0772-9464","StandardTitleSer":"Bulletin van de Belgische Vereniging voor Geologie = Bulletin de la Société Belge de Géologie","ISSN":"0379-1807","AbbrevSer":"Bull. Belg. Ver. Geologie = Bull. Soc. Belg. Geol.","StandardTitleMon":null,"StartPage":203,"Pages":11,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":{"Line1":"Krijgslaan 281","Email":null,"Line2":null,"EnvName":"Belgium"},"othpubs":null,"ownerships":null,"authors":[{"AutName":"Jacobs","Firstname":"Patric","Initials":"P.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":2615,"AutID":4338,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":2,"InsID":null},{"AutName":"Sevens","Firstname":null,"Initials":"E.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":2615,"AutID":4377,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":135728,"LibID":36,"BRefID":57447,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"135728","RFID":null,"PaidValue":null,"Medium":"Server","Description":null,"Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open Marien Archief","URL":null,"ClassifID":235,"Classification":"Open Marine Archive","ReqLink":null,"ClassifTypID":5,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":0,"InternalReq":0,"LoggedInReq":0,"Disclaimer":"Disclaimer_OMA","DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Belgische Vereniging voor Geologie = Société Belge de Géologie","City":"Brussel"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight","ThestID":182113,"Acronym":"ASFA_GEOT","ThesTermPath":"ANE, North Sea, Southern Bight"},{"ThesaurusTerm":"Outcrops","ThestID":5888,"Acronym":"ASFA","ThesTermPath":"Outcrops"}],"thestermsASFA":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight"},{"ThesaurusTerm":"Outcrops"}],"taxtermsASFA":null,"geotermsASFA":[{"GeoTerm":"Southern Bight"}],"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"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"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":2615,"AbstractFlag":-1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":2615,"AbstractFlag":-1,"LangID":22,"LangCode":"fr","Lang":"French","DutchTerm":"Frans","LangCodeExtended":"fre"},{"BEntID":2615,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":null,"thesterms":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight","ThestID":182113,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Outcrops","ThestID":5888,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":null,"geoterms":[{"GeoTerm":"Southern Bight","GeoObjectID":2399,"GeotID":395}],"othterms":[{"OtherTerm":"Middle Eocene","OthtID":6430},{"OtherTerm":"Sequence stratigraphy","OthtID":4335},{"OtherTerm":"Systems tracts","OthtID":10435},{"OtherTerm":"Western belgium","OthtID":4663}],"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight","DutchTerm":null,"ThestID":182113,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Outcrops","DutchTerm":null,"ThestID":5888,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":null,"geotermsFRIS":[{"GeoTerm":"Southern Bight","DutchTerm":"Zuidelijke Bocht"}],"othtermsFRIS":[{"OtherTerm":"Middle Eocene","DutchTerm":null,"OthtID":6430},{"OtherTerm":"Sequence stratigraphy","DutchTerm":null,"OthtID":4335},{"OtherTerm":"Systems tracts","DutchTerm":null,"OthtID":10435},{"OtherTerm":"Western belgium","DutchTerm":null,"OthtID":4663}],"resmessage":"","complete":1,"sessions":{"newSesName":"VLIZ2000\\stevenc","newSesDate":{"date":"2004-02-13 09:02:09.447000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Haspeslagh, Jan, J.","updSesDate":{"date":"2008-06-13 10:13:08.503000","timezone_type":3,"timezone":"Europe/Brussels"}}}