Coastal wetlands as markers of transgression in proximal extensional systems (Berriasian, W Cameros Basin, Spain)

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dc.contributor.authorMas Mayoral, José Ramón
dc.contributor.authorArribas Mocoroa, María Eugenia
dc.contributor.authorGonzález Acebrón, Laura
dc.contributor.authorQuijada, Isabel Emma
dc.contributor.authorCampos-Soto, S.
dc.contributor.authorSuárez González, Pablo
dc.contributor.authorSacristán Horcajada, Sara
dc.contributor.authorArribas Mocoroa, José
dc.contributor.authorBenito Moreno, María Isabel
dc.contributor.authorPérez Garrido, Carlos
dc.contributor.authorAlonso Millán, Ángela
dc.date.accessioned2023-06-17T13:21:23Z
dc.date.available2023-06-17T13:21:23Z
dc.date.issued2019-03
dc.description.abstractThe early stages of intraplate extensional systems commonly are recorded by deposition of continental sediments. In this context, given appropriate tectonics and eustasy, transgressions can be well recorded in the areas of the basins located close to the sea, but they may be difficult to recognize in the innermost landwards areas of the system. This situation occurs in the innermost Upper Jurassic-Early Cretaceous Cameros Basin, part of the Iberian Extensional System (N. Spain), where a Berriasian transgression is recorded. The Berriasian succession in this area consists of siliciclastic deposits (sandstone and mudstone) of the Salcedal Formation and of carbonate and mixed carbonate-fine siliciclastic deposits (limestone and marl) of the San Marcos Formation. The sedimentological analysis of this depositional succession indicates that a Berriasian carbonate coastal wetland system occupied that sector of the Cameros Basin during deposition of the San Marcos Formation. This carbonate coastal wetland system consisted of shallow and quiet water bodies including some with marine influence others with no to very little marine influence, and palustrine areas. A semiarid climate characterized by the seasonal alternation of short wet and long dry periods caused water bodies of the system to undergo episodic desiccation and subaerial exposure. Moreover, this complex mosaic of sub-environments was connected laterally with a distal zone of a distributive fluvial system that was rimmed by siliciclastic tidal flats during phases of greater marine influence. The paleogeographic arrangement of this coastal wetland depositional system indicates that the marine influence came from the Basque-Cantabrian Basin to the north. During the period of Berriasian maximum marine influence, accommodation linked to the eustatic rise added to accommodation generated by tectonic subsidence from the extensional reactivation of late Variscan strike-slip faults. All these factors favored marine incursion into the west Cameros Basin from the Basque-Cantabrian Basin to the north. The example of the Berriasian transgression recorded in the W Cameros Basin by establishment of coastal wetland systems matches the interpretations of previous studies in neighboring areas. In those areas, complex coastal systems record transgressions in the innermost parts of the intraplate extensional basins of the Iberian Plate. This observation suggests that this paleogeographic and sedimentological arrangement may be common in the innermost parts of intraplate extensional basins during transgressive episodes throughout the geological record.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO)
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.sponsorshipGeosciences Institute (IGEO-CSIC).
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/54935
dc.identifier.doi10.1007/s41513-018-0086-y
dc.identifier.issn1698-6180
dc.identifier.officialurlhttps://link.springer.com/article/10.1007/s41513-018-0086-y
dc.identifier.urihttps://hdl.handle.net/20.500.14352/13216
dc.issue.number1
dc.journal.titleJournal of Iberian Geology
dc.language.isoeng
dc.page.final27
dc.page.initial1
dc.publisherSpringer
dc.relation.projectID(CGL2011-22709; CGL2014-52670-P)
dc.relation.projectIDUCM (910429)
dc.rights.accessRightsrestricted access
dc.subject.cdu551.763.1(460.21)
dc.subject.keywordHumedales costeros
dc.subject.keywordcarbonatos
dc.subject.keywordtransgresión berriasiense
dc.subject.keywordcuencas ibéricas internas
dc.subject.keywordsector occidental de la Cuenca de Cameros
dc.subject.keywordN de España
dc.subject.ucmGeodinámica
dc.subject.ucmGeología estratigráfica
dc.subject.ucmPetrología
dc.subject.unesco2507 Geofísica
dc.subject.unesco2506.19 Estratigrafía
dc.titleCoastal wetlands as markers of transgression in proximal extensional systems (Berriasian, W Cameros Basin, Spain)
dc.typejournal article
dc.volume.number45
dspace.entity.typePublication
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