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dc.contributor.author Helen M. en_US
dc.contributor.author Ann G. en_US
dc.date.accessioned 2011-08-01T08:33:21Z
dc.date.available 2011-08-01T08:33:21Z
dc.date.issued 2001-12-01 en_US
dc.identifier http://dx.doi.org/10.1016/S0277-3791(00)00051-2 en_US
dc.identifier.citation Roberts , H M & Wintle , A G 2001 , ' Equivalent dose determinations for polymineralic fine-grains using the SAR protocol: application to a Holocene sequence of the Chinese Loess Plateau ' Quaternary Science Reviews , vol 20 , no. 5-9 , pp. 859-863 . , 10.1016/S0277-3791(00)00051-2 en_US
dc.identifier.other PURE: 169828 en_US
dc.identifier.other dspace: 2160/7216 en_US
dc.identifier.uri http://hdl.handle.net/2160/7216
dc.description.abstract A single-aliquot regenerative-dose (SAR) protocol, involving stimulation of the same disc with an infra-red laser diode followed by blue LEDs, was applied to polymineralic fine-grains. Infra-red stimulated luminescence (IRSL) and (post-IR) optically stimulated luminescence (OSL) ages are presented for a series of 19 fine-grain (4-11 mum) samples, taken from a loess section (Duowa) in the western Chinese Loess Plateau. There an significant differences between the equivalent doses and, thus, the ages for the IRSL and (post-IR) OSL measurements. Three potential explanations an investigated: incomplete bleaching prior to deposition; thermal transfer of charge; and initial sensitivity change. The question regarding which sequence of ages [IR or (post-IR) OSL] is correct (if either) is not resolved, although the 19 (post-IR) OSL ages yield more consistent results. It is proposed that the 'double' SAR protocol employed may not be correctly monitoring the sensitivity changes relating to either (or both) Natural signals. (C) 2000 Elsevier Science Ltd. All rights reserved. en_US
dc.format.extent 5 en_US
dc.relation.ispartof Quaternary Science Reviews en_US
dc.subject LUMINESCENCE en_US
dc.title Equivalent dose determinations for polymineralic fine-grains using the SAR protocol: application to a Holocene sequence of the Chinese Loess Plateau en_US
dc.contributor.pbl Institute of Geography & Earth Sciences en_US
dc.contributor.pbl Quaternary Environmental Change Group en_US


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