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Holocene isostasy and relative sea-level changes on the east coast of England

Rutherford, M.; Flather, Roger; Wingfield, R; Horton, Ben; McArthur, J; Innes, Jim; Lloyd, J; Lambeck, Kurt

Description

Analysis of sea-level data from the east coast of England identifies local-scale and regional scale factors to explain spatial and temporal variations in the altitude of Holocene sea-level index points. The isostatic effect of the glacial rebound process, including both the ice (glacio-isostatic) and water (hydro-isostatic) load contributions, explains regional-scale differences between eight areas: c. 20 m range at 8 cal. ka BP and by 4 cal. ka BP relative sea-level in Northumberland was above...[Show more]

dc.contributor.authorRutherford, M.
dc.contributor.authorFlather, Roger
dc.contributor.authorWingfield, R
dc.contributor.authorHorton, Ben
dc.contributor.authorMcArthur, J
dc.contributor.authorInnes, Jim
dc.contributor.authorLloyd, J
dc.contributor.authorLambeck, Kurt
dc.date.accessioned2015-12-13T23:22:25Z
dc.identifier.isbn1862390541
dc.identifier.urihttp://hdl.handle.net/1885/91439
dc.description.abstractAnalysis of sea-level data from the east coast of England identifies local-scale and regional scale factors to explain spatial and temporal variations in the altitude of Holocene sea-level index points. The isostatic effect of the glacial rebound process, including both the ice (glacio-isostatic) and water (hydro-isostatic) load contributions, explains regional-scale differences between eight areas: c. 20 m range at 8 cal. ka BP and by 4 cal. ka BP relative sea-level in Northumberland was above present, whereas in areas to the south relative sea level has been below present throughout the Holocene. Estimates for pre-industrial relative sea-level change range from 1.04 ± 0.12 mm a-1 in the Fenland to -1.30 ± 0.68 mm a-1 (i.e. sea-level fall) in north Northumberland, although this may overestimate the current rate of sea-level fall. Isostatic effects will produce similar relative differences in rates of sea-level change through the twenty-first century. The data agree closely with the patterns predicted by glacio- and hydro-isostatic models, but small systematic differences along the east coast await testing against new ice models. Local scale processes identified include differential isostatic effects within the Humber Estuary and the Fenland, tide range changes during the Holocene, and the effects of sediment consolidation. These processes help explain the variation in altitude between sea-level reconstructions derived from index points taken from basal peats and those from peats intercalated within thick sequences of Holocene sediments.
dc.publisherGeological Society of London
dc.relation.ispartofHolocene land-ocean interaction and environmental change around the North Sea
dc.relation.isversionof1st Edition
dc.subjectKeywords: glacial rebound; Holocene; isostasy; sea level change; United Kingdom
dc.titleHolocene isostasy and relative sea-level changes on the east coast of England
dc.typeBook chapter
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2000
local.identifier.absfor040405 - Gravimetrics
local.identifier.ariespublicationMigratedxPub22191
local.type.statusPublished Version
local.contributor.affiliationRutherford, M., University of Durham
local.contributor.affiliationLambeck, Kurt, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationFlather, Roger, Bidston Observatory
local.contributor.affiliationWingfield, R, University of Maine
local.contributor.affiliationHorton, Ben, University of Durham
local.contributor.affiliationMcArthur, J, University of Durham
local.contributor.affiliationInnes, Jim, University of Durham
local.contributor.affiliationLloyd, J, Max Planck Institute for Biogeochemistry
local.description.embargo2037-12-31
local.bibliographicCitation.startpage275
local.bibliographicCitation.lastpage298
local.identifier.doi10.1144/GSL.SP.2000.166.01.14
dc.date.updated2015-12-12T09:10:56Z
local.bibliographicCitation.placeofpublicationBath, UK
local.identifier.scopusID2-s2.0-0034044970
CollectionsANU Research Publications

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