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OSL chronology for a sediment core from the southern Baltic Sea: A continuous sedimentation record since deglaciation

Kortekaas, Marloes LU ; Murray, A. S.; Sandgren, Per LU and Björck, Svante LU (2007) In Quaternary Geochronology 2(1-4). p.95-101
Abstract
A chronology based on optically stimulated luminescence (OSL) dating is presented for the late- and post-glacial evolution of the southern Baltic Sea (-15ka to present). During this period, large water level and salinity changes occurred in the Baltic Basin due to opening and closing of connections to the North Atlantic. Previous attempts to establish a chronology for these palaeoenvironmental changes have mainly been conducted in coastal settings where organic material for C-14 dating is abundant. Many of these records are, however, discontinuous due to the large water level fluctuations. In contrast, in the relatively deep water of the Arkona Basin, the sediment record is expected to be more or less continuous. The single aliquot... (More)
A chronology based on optically stimulated luminescence (OSL) dating is presented for the late- and post-glacial evolution of the southern Baltic Sea (-15ka to present). During this period, large water level and salinity changes occurred in the Baltic Basin due to opening and closing of connections to the North Atlantic. Previous attempts to establish a chronology for these palaeoenvironmental changes have mainly been conducted in coastal settings where organic material for C-14 dating is abundant. Many of these records are, however, discontinuous due to the large water level fluctuations. In contrast, in the relatively deep water of the Arkona Basin, the sediment record is expected to be more or less continuous. The single aliquot regenerative dose (SAR) procedure was used to date 32 samples of fine quartz sand from a 10.86 in long sediment core from the centre of this basin (45 in water depth). Tests of luminescence characteristics confirmed the suitability of the material for OSL dating and the ages agree well with the available AMS C-14 ages on shells. The Baltic Ice Lake drainage to the North Atlantic appears to occur - 11.6 ka, agreeing with other published evidence. However, we suggest that the main marine Littorina transgression appears in the Arkona Basin at about 6.5 ka, rather than at 8.5 ka, as previously thought. (c) 2006 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
marine sediment, radiocarbon dating, optical dating, OSL, Baltic sea, sea-level changes
in
Quaternary Geochronology
volume
2
issue
1-4
pages
95 - 101
publisher
Elsevier
external identifiers
  • wos:000247210000018
  • scopus:34548010985
ISSN
1871-1014
DOI
10.1016/j.quageo.2006.05.036
language
English
LU publication?
yes
id
9f38fee0-e3ba-4c81-b206-27fb3b197beb (old id 648673)
date added to LUP
2007-12-12 08:56:08
date last changed
2017-10-22 04:29:49
@article{9f38fee0-e3ba-4c81-b206-27fb3b197beb,
  abstract     = {A chronology based on optically stimulated luminescence (OSL) dating is presented for the late- and post-glacial evolution of the southern Baltic Sea (-15ka to present). During this period, large water level and salinity changes occurred in the Baltic Basin due to opening and closing of connections to the North Atlantic. Previous attempts to establish a chronology for these palaeoenvironmental changes have mainly been conducted in coastal settings where organic material for C-14 dating is abundant. Many of these records are, however, discontinuous due to the large water level fluctuations. In contrast, in the relatively deep water of the Arkona Basin, the sediment record is expected to be more or less continuous. The single aliquot regenerative dose (SAR) procedure was used to date 32 samples of fine quartz sand from a 10.86 in long sediment core from the centre of this basin (45 in water depth). Tests of luminescence characteristics confirmed the suitability of the material for OSL dating and the ages agree well with the available AMS C-14 ages on shells. The Baltic Ice Lake drainage to the North Atlantic appears to occur - 11.6 ka, agreeing with other published evidence. However, we suggest that the main marine Littorina transgression appears in the Arkona Basin at about 6.5 ka, rather than at 8.5 ka, as previously thought. (c) 2006 Elsevier Ltd. All rights reserved.},
  author       = {Kortekaas, Marloes and Murray, A. S. and Sandgren, Per and Björck, Svante},
  issn         = {1871-1014},
  keyword      = {marine sediment,radiocarbon dating,optical dating,OSL,Baltic sea,sea-level changes},
  language     = {eng},
  number       = {1-4},
  pages        = {95--101},
  publisher    = {Elsevier},
  series       = {Quaternary Geochronology},
  title        = {OSL chronology for a sediment core from the southern Baltic Sea: A continuous sedimentation record since deglaciation},
  url          = {http://dx.doi.org/10.1016/j.quageo.2006.05.036},
  volume       = {2},
  year         = {2007},
}