Print Email Facebook Twitter Development of a mid-Holocene estuarine basin, Rhine-Meuse mouth area, offshore The Netherlands Title Development of a mid-Holocene estuarine basin, Rhine-Meuse mouth area, offshore The Netherlands Author Hijma, M.P. van der Spek, A.J.F. van Heteren, S. TNO Bouw en Ondergrond Publication year 2010 Abstract A proper understanding of coastal development during periods of rapid sea-level rise is a prerequisite for the prediction of future coastal response to the expected acceleration in sea-level rise. However, the development of back-barrier basins, especially in river-mouth areas, during such periods is still not well understood. Here we show the response of back-barrier basins adjacent to the Rhine-Meuse river-mouth area, The Netherlands during the mid Holocene. A combination of high-resolution seismic data and cores was used to describe and explain late-Weichselian to early Holocene terrestrial and mid-Holocene back-barrier sequences. Along with dating and micropalaeontological analyses, these descriptions and explanations form the basis of a reconstruction of river-mouth and adjacent basin behaviour under conditions of rapid SLR. The nearby presence of the Rhine-Meuse estuary had a significant influence on the development of the adjacent back-barrier basin and especially its tidal channels. The back-barrier channels started to fill in between 8.3 and 7.4 ka BP due to decreasing rates of both sea-level rise and tidal-amplitude increase. During this time the Rhine relocated its mouth to the study area and the increased sediment delivery contributed to tidal-prism decrease and channel infill. Close to the Rhine-Meuse river mouth the back-barrier channels lay embedded in thick clayey, estuarine deposits and lateral migration of the tidal channels was limited. At greater distances, lateral migration rates increased as the thickness of cohesive back-barrier deposits decreases. The spatial pattern and stratigraphic setting of the northern channel fills suggests an episode of barrier overstepping between 7.5 and 6.6 ka BP. The mode and spatial limits of this overstepping are still not understood. © 2010 Elsevier B.V. All rights reserved. Subject Earth & EnvironmentGM - GeomodellingEELS - Earth, Environmental and Life SciencesGeosciencesback-barrierbarrier oversteppingestuarysea-level riseseismic datatidal prismtransgressionCoastal developmentEstuarine depositsHigh resolutionHolocenesIn-betweenLateral migrationMicropalaeontological analysisNetherlandsSea level riseSediment deliverySeismic datasSpatial patternsStudy areasTidal channelTidal prismDepositsPrismsRiversSeismic responseSeismic wavesStratigraphyEstuariesbasin evolutioncoastal developmentdepositionestuarine environmentHolocenemicropaleontologyreconstructionsediment transportseismic datasequence stratigraphytidal channeltransgressionNetherlandsRhine-Meuse Delta To reference this document use: http://resolver.tudelft.nl/uuid:802237b7-802e-449b-b2a2-b4479ba7deef TNO identifier 347442 ISSN 0025-3227 Source Marine Geology, 271 (3-4), 198-211 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.