Stable oxygen isotopes as recorders of salinity and river discharge in the German Bight, North Sea

Type : ACL
Nature : Production scientifique
Au bénéfice du Laboratoire : Non
Statut de publication : Publié
Année de publication : 2003
Auteurs (2) : SCHEURLE Carolyn HEBBELN D
Revue scientifique : Geo-marine Letters
Volume : 23
Fascicule : 2
Pages : 130-136
DOI : 10.1007/s00367-003-0133-2
URL : http://link.springer.com/article/10.1007%2fs00367-003-0133-2
Abstract : A high-resolution sediment core (sedimentation rate similar to2 mm/year) from the German Bight was analysed for its foraminiferal stable oxygen isotope (delta(18)O) composition. These data were correlated with instrumental summer sea-surface temperature and salinity data from the nearby island of Helgoland, reaching back 100 years. Comparing the isotope data with the instrumental records reveals a distinct delta(18)O-salinity relationship (delta(18)O=0.34xS-9.36; r=0.86) for the German Bight, where salinity is mainly driven by freshwater input from the Elbe River. Thus, these findings provide the possibility for future regional paleosalinity and paleodischarge reconstructions for times far beyond the instrumental timescale.
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Citation :
Scheurle C, Hebbeln D (2003) Stable oxygen isotopes as recorders of salinity and river discharge in the German Bight, North Sea. Geo-mar Lett 23: 130-136 | doi: 10.1007/s00367-003-0133-2