Sediment accumulation rates and relative sea-level rise in lagoons

Nichols, Maynard M.

doi:10.1016/0025-3227(89)90098-4

Cited by 139 publications

(86 citation statements)

References 15 publications

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“…The supply of sediment determines the coastal evolution. An abundant supply will lead to infilling of the basins and even progradation of the coast (Nichols, 1989). A deficient sediment supply will prevent infilling of the basins and will lead to landward shift of the coastal system with relative sea-level rise.…”

Section: Sea-level Risementioning

confidence: 99%

Morphodynamic development and sediment budget of the Dutch Wadden Sea over the last century

Elias

Spek

Wang

et al. 2012

Netherlands Journal of Geosciences

138

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The availability of nearly 100 years of bathymetric measurements allows the analysis of the morphodynamic evolution of the Dutch Wadden Sea under rising sea level and increasing human constraint. The historically observed roll-over mechanisms of landward barrier and coastline retreat cannot be sustained naturally due to numerous erosion control measures that have fixed the tidal basin and barrier dimensions. Nevertheless, the large continuous sedimentation in the tidal basins (nearly 600 million m 3 ), the retained inlets and the similar channel-shoal characteristics of the basins during the observation period indicate that the Wadden Sea is resilient to anthropogenic influence, and can import sediment volumes even larger than those needed to compensate the present rate of sea-level rise. The largest sedimentation occurs in the Western Wadden Sea, where the influence of human intervention is dominant. The large infilling rates in closed-off channels, and along the basin shoreline, rather than a gradual increase in channel flat heights, render it likely that this sedimentation is primarily a response to the closure of the Zuiderzee and not an adaptation to sea-level rise. Most of the sediments were supplied by the ebb-tidal deltas. It is, however, unlikely that the sediment volume needed to reach a new equilibrium morphology in the Western Wadden Sea can be delivered by the remaining ebb-tidal deltas alone.

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Section: Sea-level Risementioning

confidence: 99%

Morphodynamic development and sediment budget of the Dutch Wadden Sea over the last century

Elias

Spek

Wang

et al. 2012

Netherlands Journal of Geosciences

138

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“…The sediments in Scotney Marsh preserve a record of environmental changes, the causes of which are not certain but are believed by Spencer (¡ 997) to be due to changes in !he rate of sea-Ievel rise relative to Ihe rate of sedimentation (Nichols, 1989). This may be due either to temporal variations in the rate of sealevel rise or to changes in sediment supply.…”

Section: Back-barrier Deposits Of Scotney Lvfarshmentioning

confidence: 99%

“…This is particularly important when considering the importance o[ the marine influence, as a balance between sea-leve! rise and sediment influx (Nichols, 1989), on back-ban·ier sedimentation (see reviews by Reinson, ]992; Roy et al, ]994; Cooper, 1994). In testing the genera] applicability o[ this interpretative model, it is important to examine contrasting barrier and backbarrier environments.…”

Section: ] Introductionmentioning

confidence: 99%

Particle size characterisation of Holocene back-barrier sequences from North Atlantic coasts (SW Spain and SE England)

et al. 2002

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AbstraetIn this paper, we present the results of bivariate plols of grain size parameters (mean againsl sorting) in the reconstruc¡ion of Holocene envíronmental change in coastal envíronmenls where barrier Fonnalion has had an important control on sedimentatíon. Sites on the North Atlantic coast with differing histories of climate, sediment flux, sea-Ievel change and barrier integrity are invesligaled lO delennine the general efficacy 01' this bivariate parameler model in dislinguishing between openand closed-basin conditions, and in reviewing lhe signillcance 01' aperiodic high-energy geomorphic events in controlling late slage back-barrier sedimenlalion.

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“…Οι συνθήκες ιζηματογένεσης σε αυτή την ανοικτή λιμνοθάλασσα, ήταν γενικά χαμηλής ενέργειας. Σύμφωνα με το μοντέλο εξέλιξης λαγκούνας, του Nichols (1989), που βασίζεται πάνω στη δυνα-μική σχέση που παρουσιάζουν μεταξύ τους οι ρυθμοί ιζηματογένεσης που επικρατούν σε μια περιοχή, με τους ρυθμούς ανόδου της Μ.Θ.Σ, η περιοχή στη φάση αυτή χαρακτηρίζεται ως «ελ-λειμματική» λιμνοθάλασσα (deficit lagoon) με τους ρυθμούς ανόδου της Μ.Θ.Σ να είναι μεγα-λύτεροι των ρυθμών ιζηματογένεσης.…”

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Παλαιοπεριβαλλοντική Εξέλιξη Της Λιμνοθάλασσας Του Κίτρους Πιερίας, ΒΔ Θερμαϊκός Κόλπος

et al. 2017

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This paper deals with the palaeoenvironmental evolution of the Kitros Pierias Lagoon, located at the west coastline of the Thermaikos Gulf, during the upper Holocene. In addition, the palaeoenvi-ronmental units distinguished in the study area were correlated with the Holocene sea level rise in Thermaikos Gulf. The study is based on the sedimentological and stratigraphical analysis of a core 9.5 m long. Sedimentological and palaeontological analysis was carried out in all selected core sam-ples. The determination of the lithophases and biophases allowed the estimation of the stratigraphy-cal units, the interpretation of the geomorphological evolution and the characterization of the palaeo-environmental conditions. According to the results, we can conclude that the area under investigation was a transitional lagoonal environment, semi-enclosed at its initial stage progressively transformed to an isolated sallow basin. The formation of the semi-enclosed lagoon has been commenced after the conclusion of the rapid phase of sea level rise i.e. 6,000 BP years. Finally, the gradual isolation of the lagoon is attributed to low rate of the sea level rise e.g. over the past 4,000 years..

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Sediment accumulation rates and relative sea-level rise in lagoons

Cited by 139 publications

References 15 publications

Morphodynamic development and sediment budget of the Dutch Wadden Sea over the last century

Morphodynamic development and sediment budget of the Dutch Wadden Sea over the last century

Particle size characterisation of Holocene back-barrier sequences from North Atlantic coasts (SW Spain and SE England)

Παλαιοπεριβαλλοντική Εξέλιξη Της Λιμνοθάλασσας Του Κίτρους Πιερίας, ΒΔ Θερμαϊκός Κόλπος

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