Optical dating of young tidal sediments in the Danish Wadden Sea
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Optical dating of young tidal sediments in the Danish Wadden Sea. / Madsen, Anni Tindahl; Murray, A. S.; Andersen, Thorbjørn Joest; Pejrup, Morten.
In: Quaternary Geochronology, Vol. 2, No. 1-4, 2007, p. 89-94.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Optical dating of young tidal sediments in the Danish Wadden Sea
AU - Madsen, Anni Tindahl
AU - Murray, A. S.
AU - Andersen, Thorbjørn Joest
AU - Pejrup, Morten
PY - 2007
Y1 - 2007
N2 - We have tested the applicability of optically stimulated luminescence (OSL) to the dating of young estuarine sediments (<1000 years) to determine whether this method can be used to complement and support existing techniques, such as 210Pb dating. The degree of bleaching before deposition is investigated by examining the age trend in various sediment cores, and where possible, by comparison with independent age control provided by 210Pb dating. The consistency between optical ages and 210Pb ages is shown to be satisfactory on a time-scale down to only a few years.We conclude that OSL provides reliable and reproducible results in cores from sub-, inter- and supra-tidal sediments, ranging from only a few years up to ~1000 years old, confirming its value in the estimation of estuarine accretion rates. With OSL it is, for the first time, possible to date sediment cores from silty and sandy tidal flats, providing a new approach to the problem of evaluation of stability and calculation of sediment budgets for estuaries and coastal lagoons.
AB - We have tested the applicability of optically stimulated luminescence (OSL) to the dating of young estuarine sediments (<1000 years) to determine whether this method can be used to complement and support existing techniques, such as 210Pb dating. The degree of bleaching before deposition is investigated by examining the age trend in various sediment cores, and where possible, by comparison with independent age control provided by 210Pb dating. The consistency between optical ages and 210Pb ages is shown to be satisfactory on a time-scale down to only a few years.We conclude that OSL provides reliable and reproducible results in cores from sub-, inter- and supra-tidal sediments, ranging from only a few years up to ~1000 years old, confirming its value in the estimation of estuarine accretion rates. With OSL it is, for the first time, possible to date sediment cores from silty and sandy tidal flats, providing a new approach to the problem of evaluation of stability and calculation of sediment budgets for estuaries and coastal lagoons.
KW - Faculty of Science
KW - Danmark
KW - vade hav
KW - kvarts
KW - 210 Pb datering
KW - OSL
KW - Denmark
KW - wadden sea
KW - Salt marsh
KW - Tidal mudflats
KW - Quartz
KW - 210Pb dating
U2 - doi:10.1016/j.quageo.2006.05.008
DO - doi:10.1016/j.quageo.2006.05.008
M3 - Journal article
VL - 2
SP - 89
EP - 94
JO - Quaternary Geochronology
JF - Quaternary Geochronology
SN - 1871-1014
IS - 1-4
ER -
ID: 3570011