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dc.contributor.authorLohne, Øystein S.eng
dc.contributor.authorBondevik, Steineng
dc.contributor.authorMangerud, Janeng
dc.contributor.authorSvendsen, John-Ingeeng
dc.date.accessioned2006-05-10T14:02:15Z
dc.date.available2006-05-10T14:02:15Z
dc.date.issued2007eng
dc.identifier.citationQuaternary Science Reviews 26(17-18): 2128-2151en
dc.identifier.issn0277-3791eng
dc.identifier.issn1873-457Xeng
dc.identifier.urihttp://hdl.handle.net/1956/1179
dc.descriptionPublished as: Sea-level fluctuations imply that the Younger Dryas ice-sheet expansion in western Norway commenced during the Allerod
dc.description.abstractThe relative sea level rose 10 m on Sotra, western Norway, during the Younger Dryas (YD). Based on dating of isolation basins, the transgression started in late Allerød at ~13 110 and ended in late YD at ~11 780 cal yr BP, with an average sea-level rise of ~7 mm yr-1. Between ~11 780 and ~11 560 cal yr BP the relative sea level was stable. Shortly after the YD/Holocene boundary the sea level rapidly fell 37 m at ~23 mm yr-1. The shorelines for the regression minimum in Allerød and the transgression maximum in YD are almost parallel with tilt of 1.2-1.4 m km-1, indicating that no isostatic tilting, and thus neither uplift or depression occurred during the sea-level rise. We conclude that the transgression was caused by a YD ice-sheet re-advance mapped in the same area. This stopped the isostatic uplift and increased the gravitational attraction on the sea elevating the geoid in this area. There may also been a contribution from rising glacio-eustatic sea level. Our results show that the transgression started around 13 110 cal yr BP. Thus, we conclude that the YD ice-sheet advance in western Norway started before the onset of the YD.en
dc.format.extent1753070 byteseng
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherElseviereng
dc.titleThe start of a major sea-level rise indicates that icesheet expansion in western Norway commenced before the Younger Dryaseng
dc.typeJournal articleeng
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Geofag: 450nob
dc.type.versionsubmittedVersioneng
bibo.doihttp://dx.doi.org/10.1016/j.quascirev.2007.04.008eng
dc.identifier.doi10.1016/j.quascirev.2007.04.008


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