Reconstruction of Holocene foreland progradation using optically stimulated luminescence (OSL) dating: an example from Dungeness, UK

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dc.contributor.author Roberts, Helen M.
dc.contributor.author Plater, A. J.
dc.date.accessioned 2008-12-16T09:53:46Z
dc.date.available 2008-12-16T09:53:46Z
dc.date.issued 2007-05
dc.identifier.citation Roberts , H M & Plater , A J 2007 , ' Reconstruction of Holocene foreland progradation using optically stimulated luminescence (OSL) dating: an example from Dungeness, UK ' The Holocene , vol 17 , no. 4 , pp. 495-505 . en
dc.identifier.issn 0959-6836
dc.identifier.other PURE: 94837
dc.identifier.other dspace: 2160/1673
dc.identifier.uri http://hdl.handle.net/2160/1673
dc.description Roberts, Helen, Plater, A.J., (2007) 'Reconstruction of Holocene foreland progradation using optically stimulated luminescence (OSL) dating: an example from Dungeness, UK', The Holocene 17 (4) pp.495-505 RAE2008 en
dc.description.abstract Dungeness Foreland, southeast UK, is comprised of a series of distinctive gravel ridges overlying sub- and intertidal sands. The successful application of optically stimulated luminescence (OSL) to the Holocene sub- and intertidal sands at Dungeness provides a well-resolved chronology (precision ~5%) for exploring the sedimentary response of a gravel foreland to changes in sea level, storms, sediment supply and coastal dynamics. The nature of foreland progradation at Dungeness is revealed through a three-dimensional network of 35 new quartz OSL ages, and these data also constrain the timing of gravel emplacement. The OSL chronology places the early formation of the underlying shoreface in the west at ~5000 years ago, with ages decreasing progressively eastwards to ~2000 years ago beneath the main body of the present foreland, and 1000—600 years ago under the present-day ness in the east. The uppermost OSL ages for the subgravel sand unit provide maximum limiting ages for emplacement of the gravel, which together with 14C ages from organic deposits on the gravel surface provide bracketing ages for the deposition of the gravel. The short lag time between shoreface sand deposition and gravel ridge formation is indicative of a high degree of dependency of gravel foreland progradation on the pre-existence of an emergent sand substrate. Sigmoidal isochrons constructed using the subgravel sand OSL ages, and consideration of down-core OSL ages, demonstrates nonlinearity in coastal response; this is expressed in the form of changes in the direction of foreland progradation rather than temporal changes in sedimentation rate. en
dc.format.extent 11 en
dc.language.iso eng
dc.relation.ispartof The Holocene en
dc.subject HISTORY en
dc.subject gravel foreland progradation en
dc.subject RECORD en
dc.subject BARRIER en
dc.subject optically stimulated luminescence (OSL) en
dc.subject single-aliquot regenerative-dose (SAR) en
dc.subject Holocene en
dc.subject QUARTZ en
dc.subject SEDIMENTS en
dc.subject ENGLAND en
dc.subject USA en
dc.subject optical dating en
dc.subject ROMNEY MARSH en
dc.subject coarse-grained quartz en
dc.subject EVOLUTION en
dc.subject Dungeness en
dc.title Reconstruction of Holocene foreland progradation using optically stimulated luminescence (OSL) dating: an example from Dungeness, UK en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1177/0959683607077034
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Quaternary Environmental Change Group en
dc.description.status Peer reviewed en


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