Optical dating of Holocene sediments from a variety of geomorphic settings using single grains of quartz

Olley, Jon; Pietsch, Tim

doi:10.1016/j.geomorph.2003.09.020

Cited by 387 publications

(301 citation statements)

References 47 publications

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“…From studies of quartz single grains, similar values of over-dispersion would be expected for samples that were well bleached at deposition (e.g. Olley et al, 2004). …”

Section: Discussionmentioning

confidence: 57%

Infrared stimulated luminescence measurements of single grains of K-rich feldspar for isochron dating

Duller

et al. 2011

Quaternary Geochronology

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Bo Li, Sheng-Hua Li, Geoffrey A.T. Duller, Ann G. Wintle (2011). Infrared stimulated luminescence measurements of single grains of K-rich feldspar for isochron dating. Quaternary Geochronology, 6(1), 71-81 Sponsorship: Research Grant Council of the Hong Kong Special Administrative Region, ChinaThis paper explores the use of single grain luminescence measurements in isochron dating of K-rich feldspars. The thermal stability of individual feldspar grains was investigated using pulse annealing methods, which appears to distinguish between K-rich and Na-rich feldspars. A good isochron fit was obtained using synthetic aliquots produced from the single grain data set and the age obtained based on an assumed K content of 13 ? 1% was in good agreement with that obtained using single aliquot measurements (and with other age control).Peer reviewe

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“…From studies of quartz single grains, similar values of over-dispersion would be expected for samples that were well bleached at deposition (e.g. Olley et al, 2004). …”

Section: Discussionmentioning

confidence: 57%

Infrared stimulated luminescence measurements of single grains of K-rich feldspar for isochron dating

Duller

et al. 2011

Quaternary Geochronology

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“…After taking into account the dispersion evident in the dose recovery experiment, the overdispersion obtained by application of the mixture model appears to be consistent with a well bleached sediment. Although the overdispersion evaluated for sample 316-2 of 17% (in addition to the intrinsic 15% OD incorporated in the D e uncertainty) is significantly larger than for the other two samples, it remains within the range that has been observed with well beached sediments (Olley et al, 2004 ;Galbraith et al, 2005;Bateman, 2007;Rowan et al, 2012), and the distribution of D e values suggests that further testing may lead to the resolution of a second component >300 Gy. The weighted mean values of D e determined for small aliquots (SA, 283±15 Gy) and very small aliquots (SG, 234±12 Gy) are expected to be similar if the grains have been drawn from the same population.…”

Section: Figs 9 and 10mentioning

confidence: 68%

“…Since the overdispersion for well bleached quartz grains is expected to be up to ca 20% in single grain determinations (Olley et al, 2004), and for small aliquots the overdispersion is reduced by the effects of intergrain averaging (e.g., Cunningham at al., 2011), the values observed with small aliquots of the West Cliffe samples suggest that the sediments may have been partially bleached and/or buried in more than one phase. To investigate further the overdispersion in D e , measurements were continued using very small aliquots (VSA), with the aim of approaching single grain resolution, by identifying aliquots with a dominant individual bright grain.…”

Section: Figmentioning

confidence: 99%

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Bailiff

Lewis

Drinkall

et al. 2013

Quaternary Geochronology

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White, M. (2013) 'Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK.', Quaternary geochronology., 18 . pp. 135-148. Further information on publisher's website:http://dx.doi.org/10.1016/j.quageo.2013.04.001Publisher's copyright statement: NOTICE: this is the author's version of a work that has been accepted for publication in Quaternary geochronology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be re ected in this document. Changes may have been made to this work since it was submitted for publication. A de nitive version has been published in Quaternary geochronology, 18, 2013Quaternary geochronology, 18, , 10.1016Quaternary geochronology, 18, /j.quageo.2013 Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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“…The development of Single Aliquot Regenerative (SAR: Murray and Wintle, 2000) dose measurement protocols has allowed determining individual equivalent dose (D e ) values for sets of grains usually called aliquots, whose size typically varies from several thousands of grains down to single-grains (Duller, 1999;Bøtter-Jensen et al, 2000). Whereas OSL dating has been thoroughly tested against independent age control in a variety of environments for multi-grain aliquots (see reviews by Murray and Olley, 2002;Rittenour, 2008), only very few studies have focused on testing the accuracy of single-grain OSL age estimation in chronologically well-constrained case studies (Feathers, 2003;Olley et al, 2004a;Arnold et al, 2009;Olley et al, 2004b;Demuro et al, 2012). Moreover, in most cases the sedimentary deposition events studied concern the Holocene, i.e.…”

Section: Introductionmentioning

confidence: 99%

Testing the accuracy of a Bayesian central-dose model for single-grain OSL, using known-age samples

Guérin

Combès

Lahaye

et al. 2015

Radiation Measurements

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While reviews of comparisons between multi-grain OSL ages and independent chronological information are available in the literature, there is hardly any such performance test for single-grain OSL ages. And yet, this is all the more needed as the interpretation of single-grain dose distributions remains a difficult task, given the typically considerable dispersion in equivalent dose values measured by OSL -and the numerous sources of such dispersion in measurements. In this study, we present the OSL study of 19 samples for which independent age control is available, and whose ages range from 2 to 46 ka. Based on multi-grain OSL age estimates, these samples are presumed to have been both well-bleached at burial, and unaffected by mixing after deposition. Two ways of estimating single-grain ages are then compared: the standard approach on the one hand, consisting of applying the Central Age Model to D e values determined with the Analyst software; on the other hand, the central dose model recently proposed by Combès et al. (Combès, B., Philippe, A., Lanos, P., Mercier, N., Tribolo, C., Guerin, G., Guibert, P., Lahaye, C., in press. Quaternary Geochronology). The median of the relative discrepancy between single-grain OSL and reference ages is about twice as large for the standard approach (12%) than with the Bayesian model (7%). Statistical tests show that, based on our (limited) data set, the difference between the two models seems to be significant for samples in the age range 4-46 ka. Finally, the influence of various factors on the (in-)accuracy of single grain OSL ages is discussed; it appears that the accuracy of ages estimated in a standard way decreases when age is increased, while the Bayesian model seems more robust. This study also shows that (i) there is no 20 % limit on the CAM overdispersion parameter for well-bleached samples; (ii) dose recovery experiments do not seem to be a very reliable tool to estimate the accuracy of a SAR measurement protocol for age determination. Highlights-Samples with independent age control are dated by OSL -Their ages range from 2 to 46 ka -Multi-grain OSL ages indicate no bleaching/mixing problem -Single-grain OSL is analysed using two different models -A Bayesian approach is expected to lead to improved accuracy

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Optical dating of Holocene sediments from a variety of geomorphic settings using single grains of quartz

Cited by 387 publications

References 47 publications

Infrared stimulated luminescence measurements of single grains of K-rich feldspar for isochron dating

Infrared stimulated luminescence measurements of single grains of K-rich feldspar for isochron dating

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Testing the accuracy of a Bayesian central-dose model for single-grain OSL, using known-age samples

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