A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols

Wintle, A.G.; Murray, Andrew

doi:10.1016/j.radmeas.2005.11.001

Cited by 1,605 publications

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“…Also, as reported by Wintle and Murray (2006) when higher doses (e.g. above 125 Gy) are employed to construct the doseeresponse curve, an additional linear component can occur.…”

Section: Introductionmentioning

confidence: 80%

“…Assuming an exponentially saturating growth of the signal where the luminescence intensity at dose D is a function of the maximum luminescence intensity, the radiation dose, and a characteristic dose D 0 (a parameter that describes how rapidly the signal reaches saturation), Wintle and Murray (2006) recommended 2 Â D 0 (~86% of full saturation) as an upper limit for determining meaningful equivalent doses. However, their recommendation was based only on concerns regarding precision; for higher natural doses any uncertainty in the natural luminescence signal would result in a large and asymmetric uncertainty in the interpolated equivalent dose.…”

Section: Introductionmentioning

confidence: 99%

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On the importance of grain size in luminescence dating using quartz

Timar-Gabor

Buylaert

Guralnik

et al. 2017

Radiation Measurements

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h i g h l i g h t sDiscrepancy between quartz SAR-OSL ages obtained on fine and coarse grains. Dose response curve adequately fitted by a sum of two saturating exponentials. Isothermal decay fitted by a single exponential. Clear dependency between the saturation characteristics (D 0 s) and the quartz grain size. No correlation between the 2 D 0 value and the maximum attainable accurate equivalent dose. a r t i c l e i n f o a b s t r a c tThere are two major problems commonly encountered when applying Optically Stimulated Luminescence (OSL) dating in the high dose range: (i) age discrepancy between different grain sizes, and (ii) age underestimation. A marked and systematic discrepancy between fine-grain (4e11 mm) and coarse-grain (63e90 mm) quartz single aliquot regeneration protocol (SAR) ages has been reported previously for Romanian and Serbian loess >40 ka (D e of~100 Gy), generally with fine-grain ages underestimating the depositional age. In this paper, we show a similar age pattern for two grain size fractions from Chinese loess, thus pointing to a potential worldwide phenomenon. While age underestimation is often attributed to signal saturation problems, this is not the case for fine grain material, which saturates at higher doses than coarse grains, yet begins to underestimate true ages earlier. Here we examine the dose response curves of quartz from different sedimentary contexts around the world, using a range of grain sizes (diameters of 4e11 mm, 11e30 mm, 35e50 mm, 63e90 mm, 90e125 mm, 125e180 mm, and 180 e250 mm). All dose response curves can be adequately described by a sum of two saturating exponential functions, whose saturation characteristics (D 0 values) are clearly anticorrelated with grain diameter (4) through an inverse square root relationship, D 0 ¼ A/√4, where A is a scaling factor. While the mechanism behind this grain-size dependency of saturation characteristics still needs to be understood, our results show that the observation of an extended SAR laboratory dose response curve does not necessarily enable high doses to be recorded accurately, or provide a corresponding extended age range.

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“…Also, as reported by Wintle and Murray (2006) when higher doses (e.g. above 125 Gy) are employed to construct the doseeresponse curve, an additional linear component can occur.…”

Section: Introductionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

On the importance of grain size in luminescence dating using quartz

Timar-Gabor

Buylaert

Guralnik

et al. 2017

Radiation Measurements

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“…2a). If the maximum dose which can be measured accurately equals 2D 0 (Wintle and Murray, 2006), the maximum age experimentally obtainable is about 133 ka for a dose rate of 3 Gy/ka. This suggests that only the data inside of the shaded area of Fig.…”

Section: Numerical Simulation Resultsmentioning

confidence: 98%

Determining the cooling age using luminescence-thermochronology

2012

Tectonophysics

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Luminescence technique has been shown to have great potential in low-temperature (< 100 °C) themochronology. This study investigates the kinetic process of luminescence in a cooling system. We present a new formula that can be used for determining the cooling age based on luminescence-thermochronology. The cooling rate can be obtained directly from a plot of luminescence age versus the present temperature. We show that the application and capacity of luminescence-thermochronology are significantly controlled by the saturation of luminescence and environmental dose rate. AbstractLuminescence technique has been shown to have great potential in low-temperature (<100 °C) themochronology. This study investigates the kinetic process of luminescence in a cooling system. We present a new formula that can be used for determining the cooling age based on luminescence-thermochronology.The cooling rate can be obtained directly from a plot of luminescence age versus the present temperature. We show that the application and capacity of luminescence-thermochronology are significantly controlled by the saturation of luminescence and environmental dose rate.Keywords: luminescence, thermochronology, cooling age, closure temperature IntroductionThermochronology refers to determining or constraining the thermal history of a specific rock, mineral, or geologic unit using various dating techniques. Different techniques in thermochronology have been developed using various dating techniques, such as fission track dating of zircon and apatite, K-Ar and Ar-Ar dating of K-feldspars, (U-Th)/He dating of zircon and apatite and 4 He/ 3 He dating, etc. A full review of thermochronology has been provided by Reiners et al (2005). In terms of low-temperature thermochronology, radiation damage dating techniques, such as electron spin resonance (ESR) dating (Grün et al., 1999) and thermoluminescence (TL), are applied (Johnson 1966). Recently, in the study of the relief evolution and exhumation rates within the last glacial cycle in the Southern Alps of New Zealand, a new low-temperature 2 thermochronology has been introduced using the technique of optically stimulated luminescence (OSL) dating of quartz (Herman et al., 2010) .Luminescence refers to the light emitted by irradiated crystal materials in response to external stimulus, such as heat (TL), visible light (OSL) and infrared (IRSL). During the geological processes, the minerals contained in geological materials (e.g. rocks and sediments) are exposed to ionization radiation (alpha and beta particles and gamma rays) emitted by the decay of radioactive isotopes within the minerals themselves and the surrounding matrix. The high-energy ionizing radiation can create free electrons and holes which may be subsequently trapped at the structural defects and chemical impurities inside the crystal lattice. When the minerals are stimulated by heat or light, the trapped electrons are ejected and recombined with holes. The evicted electrons diffuse around the crystal lattice and some of them ma...

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“…Beyond the obvious selection of grains emitting light (here we selected grains for which the uncertainty on the first test dose signal was less than 20%, following e.g. Thomsen et al, 2003), some authors argue for strict rejection criteria (e.g., Yoshida et al, 2000;Jacobs et al, 2006, and references therein) based essentially on the response of grains to a number of quality-insurance tests of the SAR protocol, such as recycling, recuperation and IR depletion ratios (Murray and Wintle, 2000;2003;Wintle and Murray, 2006;Duller, 2003). Others have reported that the main effect of such rejection criteria is to reduce the number of selected grains with negligible effects on the estimated D e and overdispersion (OD) parameters, which might thus lead to a loss of robustness in the final results (e.g., Thomsen et al, 2012;Guérin et al, 2015a;Geach et al, 2015;Hansen et al, 2015;Kristensen et al, 2015;Zhao et al, 2015;Thomsen et al, 2016).…”

Section: Quartz Single Grain Oslmentioning

confidence: 99%

The complementarity of luminescence dating methods illustrated on the Mousterian sequence of the Roc de Marsal: A series of reindeer-dominated, Quina Mousterian layers dated to MIS 3

Guérin

Frouin

Tuquoi

et al. 2017

Quaternary International

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Located in southwest France, Roc de Marsal is a cave with a rich Mousterian stratigraphic sequence. The lower part of the sequence (Layers 9-5) are characterized by assemblages dominated by Levallois lithic technology associated with composite faunal spectra (including red deer, roe deer and reindeer) that shows a gradual increase in the frequency of reindeer. The top of the sequence (Layers 4-2) are characterised instead by Quina lithic technology (both in terms of technology and typology) with the faunal remains dominated by reindeer. Roc de Marsal thus provides a very interesting case study to place behavioural changes in a context of changing climates and environments in western Europe during the late Pleistocene. To link the occupations at Roc de Marsal with global and regional climatic conditions known independently, a robust chronology is needed. With this aim in mind, we applied three luminescence dating methods (TL, OSL and IRSL) on different minerals (flint, quartz and K-feldspar extracts). Here the results of two of these methods are presented in detail (TL and OSL) and compared with preliminary IRSL data. At Roc de Marsal, a comparison of methods was necessary to overcome a complex sedimentary history, with very heterogeneous dose rate distributions, both at the beta (mm) and gamma (dm) dose rate scales. The results indicate that the lower Levallois layers are dated to ~65-70 ka, while overlying Quina layers are dated to ~49 ka. These ages for the lower layers fit well with some models that place mixed faunal assemblages in the initial MIS 4; however, while the Quina ages overlap with several other Quina assemblages from the region, they place the reindeer dominated fauna well after the peak cold of MIS 4 and suggest a more extended and complex period of contemporaneous lithic techno-complexes than posited by some current models. AbstractLocated in southwest France, Roc de Marsal is a cave with a rich Mousterian stratigraphic sequence. The lower part of the sequence (Layers 9-5) are characterized by assemblages dominated by Levallois lithic technology associated with composite faunal spectra (including red deer, roe deer and reindeer) that shows a gradual increase in the frequency of reindeer. The top of the sequence (Layers 4-2) are characterised instead by Quina lithic technology (both in terms of technology and typology) with the faunal remains dominated by reindeer. Roc de Marsal thus provides a very interesting case study to place behavioural changes in a context of changing climates and environments in western Europe during the late Pleistocene. To link the occupations at Roc de Marsal with global and regional climatic conditions known independently, a robust chronology is needed. With this aim in mind, we applied three luminescence dating methods (TL, OSL and IRSL) on different minerals (flint, quartz and K-feldspar extracts). Here the results of two of these methods are presented in detail (TL and OSL) and compared with preliminary IRSL data. At Roc de Marsal, a comparison of metho...

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A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols

Cited by 1,605 publications

References 76 publications

On the importance of grain size in luminescence dating using quartz

On the importance of grain size in luminescence dating using quartz

Determining the cooling age using luminescence-thermochronology

The complementarity of luminescence dating methods illustrated on the Mousterian sequence of the Roc de Marsal: A series of reindeer-dominated, Quina Mousterian layers dated to MIS 3

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