Statistics for Fission Track Analysis

Galbraith, R. F.

doi:10.1201/9781420034929

Cited by 200 publications

(193 citation statements)

References 0 publications

Supporting

Mentioning

187

Contrasting

Unclassified

Order By: Relevance

“…This is also the preferred 240 grain size for single grain measurements. Samples were measured using the SAR 241 al., 2005, 2007 Reimann et al, 2012; Sim et al, 2012). 278…”

Section: Osl Analysis Methods 236mentioning

confidence: 99%

Reliability of equivalent-dose determination and age-models in the OSL dating of historical and modern palaeoflood sediments

Medialdea

Thomsen

Murray

et al. 2014

Quaternary Geochronology

View full text Add to dashboard Cite

G. (2014). Reliability of equivalent-dose determination and age-models in the OSL dating of historical and modern palaeoflood sediments. Quaternary Geochronology, 22, 11-24. DOI: 10.1016/j.quageo.2014 Elsevier Editorial System(tm) for Quaternary Geochronology Manuscript DraftManuscript Number: QUAGEO-D-12-00096R1Title: Reliability of equivalent-dose determination and age-models in the OSL dating of historical and modern palaeoflood sediments Abstract: The challenge of accurately estimating the deposition age of incompletely-bleached samples in luminescence dating has motivated developments in the analysis of single grain dose distributions, and a number of statistical approaches have been proposed over the last few years. In this study, we compare the behaviour of the arithmetic average, the so-called 'robust statistics', the Central Age Model (CAM), the Minimum Age Model (MAM) and the Internal-External Consistency Criterion (IEU), when applied to single-grain and small multi-grain (~30 grains per aliquot) dose distributions from a sequence of eight recent (40-1000 years old) flash-flood deposits. These sediments are expected to be incompletely bleached, but all have age control from historical records. Modifications were made to allow the use of the standard CAM and MAM models with dose distributions containing near zero and negative dose values. An assessment of minimum uncertainty on individual dose estimates is based on the over-dispersion (OD) determined in dose recovery tests making use of gamma-irradiated samples. We then present a detailed analysis of the impact of appropriate uncertainty assignment on minimum (MAM and IEU) burial dose estimates. The results of the various models are discussed in terms of the accuracy of the resulting age, and we conclude that, overall, the IEU approach generates the most accurate ages. We also demonstrate that accurate IEU ages can be obtained from multi-grain measurements if an age off-set of ~40 years can be considered to be unimportant for the samples in question. From our study we conclude that these and similar young slack-water flood deposits can be accurately dated using quartz OSL, opening up the possibility of establishing time series of flood discharge in catchments for which no instrumental or historical record exists. 1Reliability of equivalent-dose determination and age-models in the OSL dating of 1 historical and modern palaeoflood sediments 2 3 Medialdea 1,3 , A., Thomsen 2 , K.J., Murray 3 , A.S., Benito 1 , G. 41. Museo Nacional de Ciencias Naturales, CSIC, Serrano 115bis, 28006 Madrid, 5Spain. amedialdea@mncn.csic.es 6 2. Center for Nuclear Technologies, Technical University of Denmark, DTU Risø 7Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark. The challenge of accurately estimating the deposition age of incompletely-bleached 13 samples in luminescence dating has motivated developments in the analysis of 14 single grain dose distributions, and a number of statistical approaches have been 15proposed over the last few years. In this study, we comp...

show abstract

“…This is also the preferred 240 grain size for single grain measurements. Samples were measured using the SAR 241 al., 2005, 2007 Reimann et al, 2012; Sim et al, 2012). 278…”

Section: Osl Analysis Methods 236mentioning

confidence: 99%

Reliability of equivalent-dose determination and age-models in the OSL dating of historical and modern palaeoflood sediments

Medialdea

Thomsen

Murray

et al. 2014

Quaternary Geochronology

View full text Add to dashboard Cite

show abstract

“…Nonetheless, the application of the FMM (Galbraith, 2005), by seeking the maximum and minimum values respectively of the log likelihood and the Bayesian information criterion (BIC), produced two D e components (k1 and k2, Table 2a, cols 12 and 13) for each of samples 316-1 (Fig. 11b, indicated (Table 2a, cols 12 and 13), 290±20 Gy (k1) and 560±40 Gy (k2), were calculated with an overdispersion of 4%; the model indicates that they are of roughly equal proportions.…”

Section: Figs 9 and 10mentioning

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

View full text Add to dashboard Cite

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.

show abstract

“…Although it can be complicated, the handling of the problem is important either young or older sediments are the subject of the investigation. In most of the cases, the issue of residual dose is tackled by applying different statistical analyses on equivalent dose (D e ) values measured preferably using single grains or very small aliquots (Olley et al, 1998;Galbraith et al, 1999;Lepper et al, 2000;Fuchs and Lang 2001;Galbraith, 2005). Another approach can be to determine residual doses in modern, known-age sediments in similar sedimentary environments to those from where palaeo-samples have been collected (Murray et al, 1995;Olley et al, 1998;Stokes et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Variation of OSL residual doses in terms of coarse and fine grain modern sediments along the Hungarian section of the Danube

et al. 2017

View full text Add to dashboard Cite

Reliable OSL dating of fluvial sediments requires an assessment of incomplete bleaching and consequent residual dose in samples. A well-established way of this is determining the equivalent dose of modern samples from similar sedimentary environments as in the case of palaeo-samples. Meanwhile, relatively low, or close to zero doses are also greatly affected by the thermal transfer phenomenon, which can also lead to a palaeodose overestimation. The present study attempts to quantify both factors in coarse and fine grain modern sediments along the Hungarian section of the Danube River, with the aim of determining their significance when dating both young and palaeosediments. Investigations were performed at 30 sites along a 417 km long river section with varying morphological and erosive character. The studied samples were deposited during the record flood of 2013, mobilising and relocating a vast amount of sediment in the system. Tests have shown that thermal transfer can be minimized successfully by choosing preheat temperatures below 200°C, however it remains a significant factor when dating young or modern sediments. Based on equivalent dose measurements, coarse grain samples proved to be relatively well bleached, and residual doses showed only a minor spatial variation. Although in terms of fine grain samples residual doses were obviously much higher, results can enhance the reliability of dates retrieved later from fine grain palaeosamples. In the meantime, the higher spatial variability of fine grain residual doses may also allow the assessment of the erosive character of different river reaches.

show abstract

Statistics for Fission Track Analysis

Cited by 200 publications

References 0 publications

Reliability of equivalent-dose determination and age-models in the OSL dating of historical and modern palaeoflood sediments

Reliability of equivalent-dose determination and age-models in the OSL dating of historical and modern palaeoflood sediments

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

Variation of OSL residual doses in terms of coarse and fine grain modern sediments along the Hungarian section of the Danube

Contact Info

Product

Resources

About