{"refrec":{"BRefID":57240,"RR":"<b>Louwye, S.</b> (1992). Dinoflagellate cyst stratigraphy of the upper cretaceous of western Belgium. <i>Bull. Belg. Ver. Geologie = Bull. Soc. Belg. Geol. 101(3-4)</i>: 255-275","BEntID":54820,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Bull. Belg. Ver. Geologie = Bull. Soc. Belg. Geol. 101(3-4)</i>: 255-275","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Louwye, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Louwye, S.","Englishabstract":"A detailed micropalaeontological analysis with dinoflagellate cysts of the Cretaceous sections intercepted by five wells in western Belgium allows a biostratigraphical correlation and a chronostratigraphical interpretation of the sediments concerned. The transgression of the Cretaceous sediments on the southern part of the Palaeozoic Brabant Massif appears to be strongly diachronous. In the Nieuwkerke and Oostduinkerke wells, situated south of the present day topographic crest of the Brabant Massif (Nieuwpoort-Oudenaarde), the transgression is dated as Late or latest Cenomanian and close to the crest in the Keiem well as Late Turonian. North of the crest, in the De Haan and Knokke wells, it is dated as Late Santonian. The Late Cenomanian strata are present only in the Nieuwkerke and tbe Oostduinkerke wens, at some distance south of the crest. Sediments dated as Turonian are found only south of the crest, with a decreasing thickness towards the crest, from the Nieuwkerke to the Keiem well. The Coniacian also occurs only south of the crest, with a similar thickness in the two latter wells. The Santonian bas a similar thickness in the same two wells south of the crest and is present only with a reduced thickness of Late Santonian age in the De Haan and Knokke wells. Campanian sediments occur only north of the crest, in both latter wells. Only Lower Campanian is present in the De Haan well, while a more complete Campanian section, followed by Maastrichtian, is observed more to the north, in the Knokke well. A post-Cretaceous erosion is thought to be responsible for the observed thickness variations in the Campanian north of the crest","AbstractOtherLang":"Une analyse micropaléontologique detaillée a l'aide de kystes de dinoflagellés appliquée aux dépots crétacés de cinq forages dans l'ouest de la Belgique, permet d'établir des corrélations biostratigraphiques entre ces forages et une interprétation chronostratigraphique de ces sédiments. La transgression du Crétacé sur le socle paléozoique du Massif du Brabant paraît fortement diachronique. Dans les forages de Nieuwkerke et Oostduinkerke, situés au sud de la crête topographique contemporaine du Massif du Brabant (Nieuwpoort-Oudenaarde), la transgression date du Cénomanien supérieur ou tardif et dans le forage de Keiem, situé plus près de la crête topographique, elle date du Turonien supérieur. Au nord de la crête topographique, dans les forages de De Haan et de Knokke, la transgression date du Santonien supérieur. Les dépots cénomaniens sont présents uniquement dans les forages de Nieuwkerke et de Oostduinkerke, situés à quelque distance au sud de la crête topographique. Le Turonien est présent seulement au sud de la crête, avec une épaisseur décroissante vers le nord, de Nieuwkerke à Keiem. Le Coniacien aussi n'est présent qu'au sud de la crête avec une épaisseur comparable dans les deux forages cités. Le Santonien aussi a une épaisseur comparable dans ces mêmes forages. Dans les forages de De Haan et de Knokke, on retrouve du Sántonien supérieur avec une épaisseur réduite et du Campanien. Seule une partie du Campanien inférieur est présent dans le forage de De Haan, tandis qu'à Knokke la section campanienne continue jusque dans le Campanien supérieur, qui y serait couvert par le Maastrichtien. Une érosion datant du post Crétacé est tenue responsable pour les variations observées dans le Campanien au nord de la crête.","BibLvlCode":"AS","StandardTitle":"Dinoflagellate cyst stratigraphy of the upper cretaceous of western Belgium","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":1992,"MonPub":null,"DateUpdate":"2017-08-14","DateCreate":"2004-02-09","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":57240,"PubliDate":1992,"Pagination":"255-275","XtraPublOfAnaID":null,"ISBN":null,"Volume":"101","Issue":"3-4","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. 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