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http://dx.doi.org/10.5806/AST.2009.22.1.051

Age comparisons of coastal sand dune stratum in Chollipo, Korea by altering preheat and cut-heat, and grain size distributions by OSL dating  

Bang, Jun-Hwan (Geochemical Analysis Center, Korea Institute of Geoscience & Mineral Resources)
Kim, Ki-Dong (Geochemical Analysis Center, Korea Institute of Geoscience & Mineral Resources)
Eum, Chul-Hun (Geochemical Analysis Center, Korea Institute of Geoscience & Mineral Resources)
Publication Information
Analytical Science and Technology / v.22, no.1, 2009 , pp. 51-56 More about this Journal
Abstract
The samples from coastal sand dune stratum in Chollipo were dated by Optically Stimulated Luminescence (OSL) with modified Single Aliquots Regeneration (SAR) method. It is possible to choose the OSL signals by thermal treatments such as preheat and cut-heat in SAR procedure. Preheat and cut-heat of $260^{\circ}C$ for 10 sec $-220^{\circ}C$ for 0 sec, and $270^{\circ}C$ for 10 sec $-270^{\circ}C$ for 10 sec were applied for estimation of equivalent dose of the samples. The OSL signals from different thermal treatment were used for OSL dating. Equivalent dose were estimated with 4 fractionated grain distributions with $75{\mu}m$, $150{\mu}m$ and $200{\mu}m$ sieves with above heating treatments. Consequently, the estimated dose were differently valued in sample sizes and applied heating treatments, different stratum ages were calculated. The ages from radiocarbon dating were compared with the OSL ages. The ages varying with grain sizes produce that the site sampled were formed with mixed soil sources.
Keywords
OSL(Optically Stimulated Luminescence); TL(Thermally Stimulated Luminescence); preheat; cut-heat;
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Times Cited By KSCI : 1  (Citation Analysis)
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