Spatial and temporal variability of sediment accumulation rates on two tidal flats in Lister Dyb tidal basin, Wadden Sea, Denmark

Auteur(s) et Affiliation(s)

MADSEN, A.T.

Dep. of Geography and Geology, Univ., Copenhagen, Danemark

Nordic Lab. for Luminescence Dating, Dep. of Earth Science, Univ., Risø National Lab. for Sustainable Development, DTU, Aarhus, Danemark

MURRAY, A.S.

Nordic Lab. for Luminescence Dating, Dep. of Earth Science, Univ., Risø National Lab. for Sustainable Development, DTU, Aarhus, Danemark

ANDERSEN, T.J.

Dep. of Geography and Geology, Univ., Copenhagen, Danemark

PEJRUP, M.

Dep. of Geography and Geology, Univ., Copenhagen, Danemark

Description :
Absolute chronologies, obtained using optically stimulated luminescence (OSL) and radiocarbon dating (14C), are presented from 7 sediment cores in an aggrading tidal lagoon. On the mudflat in the western and sheltered part of the lagoon the intertidal sedimentation has followed the rate of relative sea-level rise, at least over the last ∼2000 years, whereas the trends in sediment accumulation rates on the sandy tidal flat in the eastern and exposed part of the lagoon are less clear. The AA. conclude, however, that sediment accumulation on the 2 tidal flats in Lister Dyb tidal basin generally has kept pace with the rising sea-level. This conclusion seems to apply over the last few centuries and is generally true over the last few millennia. Furthermore, they conclude that sheltered mudflats appear to give the best description of how intertidal sedimentation responds to sea-level fluctuations.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2010, vol. 35, n°. 13, p. 1556-1572, nombre de pages : 17, Références bibliographiques : 1 p.

Date :
2010

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais