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Age limit and age underestimation using different OSL signals from lacustrine quartz and polymineral fine grains

Thomas, PJ; Murray, AS and Sandgren, Per LU (2003) In Quaternary Science Reviews 22(10-13). p.1139-1143
Abstract
As part of a systematic palaeohydrological reconstruction of lake level fluctuations during the Last Glacial Maximum, a transect of cores from ancient Lake Xinias in centra Greece has already been studied with respect to pollen, sediment and mineral magnetic analyses. The chronology was based on C-14 AMS dating of terrestrial plant macrofossil remains from peat and clayey peat (Palaeogeog. Palaeoclimatol. Palaeoecol. 158 (2000) 65). This site thus provides an opportunity for the comparison of fine grain optically stimulated luminescence (OSL) ages of water-lain sediments with an independent chronology. We present here infrared (IR), post-IR blue and blue OSL characteristics of the fine grain sediments from Lake Xinias and a preliminary... (More)
As part of a systematic palaeohydrological reconstruction of lake level fluctuations during the Last Glacial Maximum, a transect of cores from ancient Lake Xinias in centra Greece has already been studied with respect to pollen, sediment and mineral magnetic analyses. The chronology was based on C-14 AMS dating of terrestrial plant macrofossil remains from peat and clayey peat (Palaeogeog. Palaeoclimatol. Palaeoecol. 158 (2000) 65). This site thus provides an opportunity for the comparison of fine grain optically stimulated luminescence (OSL) ages of water-lain sediments with an independent chronology. We present here infrared (IR), post-IR blue and blue OSL characteristics of the fine grain sediments from Lake Xinias and a preliminary comparison with independent ages. The equivalent doses based on the IR results are about 40% of those based on post-IR blue stimulation, which in turn are 10-15% below those based on quartz OSL. We discuss the ages derived from the 3 signals in terms of the independent chronology, and draw conclusions about initial bleaching of the quartz and feldspar components, and the reliability of the post-IR blue signal as a chronometer. (C) 2003 Elsevier Science Ltd. All rights reserved. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Quaternary Science Reviews
volume
22
issue
10-13
pages
1139 - 1143
publisher
Elsevier
external identifiers
  • wos:000183162300025
  • scopus:0038521491
ISSN
0277-3791
DOI
10.1016/S0277-3791(03)00045-3
language
English
LU publication?
yes
id
b793cacf-9d51-4abf-b43b-6c2b745e6972 (old id 309708)
date added to LUP
2007-09-23 11:31:22
date last changed
2018-01-07 06:07:30
@article{b793cacf-9d51-4abf-b43b-6c2b745e6972,
  abstract     = {As part of a systematic palaeohydrological reconstruction of lake level fluctuations during the Last Glacial Maximum, a transect of cores from ancient Lake Xinias in centra Greece has already been studied with respect to pollen, sediment and mineral magnetic analyses. The chronology was based on C-14 AMS dating of terrestrial plant macrofossil remains from peat and clayey peat (Palaeogeog. Palaeoclimatol. Palaeoecol. 158 (2000) 65). This site thus provides an opportunity for the comparison of fine grain optically stimulated luminescence (OSL) ages of water-lain sediments with an independent chronology. We present here infrared (IR), post-IR blue and blue OSL characteristics of the fine grain sediments from Lake Xinias and a preliminary comparison with independent ages. The equivalent doses based on the IR results are about 40% of those based on post-IR blue stimulation, which in turn are 10-15% below those based on quartz OSL. We discuss the ages derived from the 3 signals in terms of the independent chronology, and draw conclusions about initial bleaching of the quartz and feldspar components, and the reliability of the post-IR blue signal as a chronometer. (C) 2003 Elsevier Science Ltd. All rights reserved.},
  author       = {Thomas, PJ and Murray, AS and Sandgren, Per},
  issn         = {0277-3791},
  language     = {eng},
  number       = {10-13},
  pages        = {1139--1143},
  publisher    = {Elsevier},
  series       = {Quaternary Science Reviews},
  title        = {Age limit and age underestimation using different OSL signals from lacustrine quartz and polymineral fine grains},
  url          = {http://dx.doi.org/10.1016/S0277-3791(03)00045-3},
  volume       = {22},
  year         = {2003},
}