Review and assessment of the potential of post-IR IRSL dating methods to circumvent the problem of anomalous fading in feldspar luminescence

Li, Bo; Jacobs, Zenobia; Roberts, Richard G.; Li, Sheng‐Hua

doi:10.2478/s13386-013-0160-3

Cited by 134 publications

(83 citation statements)

References 86 publications

(210 reference statements)

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“…Negative g-values indicate an increase of luminescence intensity during storage, and have been reported previously for IRSL signals from Japanese loess sediments (Watanuki et al, 2005;Thiel et al, 2011). In general, g-values for post-IR IRSL are lower than those for IRSL (Reimann et al, 2011b;Li et al, 2014), but they are rarely negative. Because the cause of the negative g-values we obtained is unknown, we did not correct post-IR IRSL ages for fading.…”

Section: Irsl and Post-ir Irsl Of K-feldsparsupporting

confidence: 75%

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Luminescence dating of Holocene beach-ridge sands on the Yumigahama Peninsula, western Japan

et al. 2017

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We applied infrared stimulated luminescence (IRSL 50 ) and post-infrared (post-IR) IRSL 150 dating to K-feldspar sand obtained from Holocene beach ridges on the Yumigahama Peninsula, Japan, to investigate the rate of progradation of the beach, which has been affected by [17][18] th century iron mining in a local river catchment. All samples showed higher equivalent doses for the post-IR IRSL signal. Fading tests indicated that IRSL yielded relatively high g-values (11-13%/decade), while post-IR IRSL yielded negative g-values (-5 to -8%/decade). The corrected IRSL age of the oldest sample, 8.1 ± 1.3 ka, was slightly overestimated with respect to its expected age of 5-6.7 ka. The corrected age is highly dependent on the g-value, which if slightly inaccurate would have caused the overestimate. The uncorrected post-IR IRSL ages were underestimated, and we consider that the post-IR IRSL signal faded. However, given the negative g-values, application of an appropriate fading correction was not feasible. The corrected IRSL ages of the younger samples, coupled with an assumption of residual dose, roughly agreed with the historical shoreline changes, indicating that the rate of shoreline progradation increased markedly during the recent period of mining-related enhanced sediment discharge.

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Section: Irsl and Post-ir Irsl Of K-feldsparsupporting

confidence: 75%

“…5) raised two issues. First, the IRSL signals showed higher g-values (11-13% per decade) than those reported in other studies (e.g., Li et al, 2014). Second, all samples showed negative g-values for post-IR IRSL signals.…”

Section: Irsl and Post-ir Irsl Of K-feldsparcontrasting

confidence: 58%

Luminescence dating of Holocene beach-ridge sands on the Yumigahama Peninsula, western Japan

et al. 2017

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“…If this fading is not corrected, it often leads to a significant underestimation of the age of a sample. Recent progress in understanding anomalous fading in feldspar has raised the prospect of isolating a non-fading IRSL component, or one less prone to fading; see Li et al (2014) for a current overview of the methods. This can be achieved by first bleaching the feldspar grains using IR photons at 50 C and then measuring the post-IR IRSL (pIRIR) signal at an elevated temperature (>200 C) (Thomsen et al, 2008;Buylaert et al, 2009Buylaert et al, , 2012Thiel et al, 2011), or by stimulating the feldspar grains with IR photons at successively higher temperatures from 50 to 300 C using the so-called multiple-elevated-temperature (MET) pIRIR procedure of Li (2011, 2012).…”

Section: Optical Datingmentioning

confidence: 99%

Testing of a single grain OSL chronology across the Middle to Upper Palaeolithic transition at Les Cottés (France)

Jacobs

Jankowski

et al. 2015

Journal of Archaeological Science

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a b s t r a c tThe timing of the Middle Palaeolithic to Upper Palaeolithic transition in France is important to help understand when, where and how Neanderthals have been replaced by Homo sapiens. Radiocarbon dating has been the dating workhorse in constructing the chronological framework pertinent to these questions. In this study, we are testing whether single grain OSL dating has the accuracy and precision to be useful as a complementary dating method. The site of Les Cott es provides an ideal testing ground because of its stratigraphic integrity and reliable radiocarbon chronology. We applied single grain OSL dating of quartz to 19 samples and multi-aliquot MET-pIRIR dating of potassium-rich feldspar grains to 5 samples to explicitly test assumptions of pre-depositional resetting of the OSL signal and postdepositional exposure to variable beta dose rates. The good agreement between the single grain OSL and the multi-aliquot MET pIRIR ages suggest that the optical signals of both quartz and feldspar grains were reset prior to deposition and that much of the extra scatter observed in the equivalent dose distribution of quartz grains are likely due to the small-scale differences in beta dose delivered to individual grains. Both the quartz OSL and feldspar MET-pIRIR ages show great consistency with the 14 C ages on bone collected from the same units. This gives confidence in the measurement and analytical approaches used to derive both the equivalent dose and dose rate, the numerator and denominator, respectively, of the luminescence age equation. These results suggest that a systematic and detailed single grain OSL dating study can have the accuracy and precision that is necessary to play a powerful role in the dating of the Middle and Upper Palaeolithic transition and other questions of importance in this time range and geographical area.

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“…The pIRIR 150 protocol has been applied successfully for the Holocene aeolian deposits, lacustrine sediments and marine deposits using coarsegrained feldspar and polymineral fine-grained materials as well (Long et al, 2014Yang et al, 2015). However, whether one should correct for small anomalous fading and residual dose for the pIRIR signal is still under discussion (Li et al, 2014a;Buylaert et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Quartz OSL and K-feldspar post-IR IRSL dating of sand accumulation in the Lower Liao Plain (Liaoning, NE China)

Tsukamoto

Frechen

2017

Geochronometria

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Abstract:The timing of the formation of extensively distributed sand dunes in the Bohai coastal area and its forcing factors are poorly understood. In this study, the chronology of a well-preserved sand dune located in Panjin Forest Park (PJ) in the Lower Liao Plain (LLP) is investigated using quartz optically stimulated luminescence (OSL) and K-feldspar postinfrared (IR) infrared stimulated luminescence (IRSL) (pIRIR) dating. For the pIRIR measurements, the combination of preheating at 180°C and pIRIR stimulation at 150°C (pIRIR 150 ) is exploited. The quartz results show that the sand dune accumulated from c. 120 a (1890 AD) to c. 70 a (1940 AD) before present, and the underlying sandy soil sediments deposited from c. 5.0 ka to c. 0.13 ka as marsh sediment after the sea level highstand since the mid-Holocene. From the evidence in historical coastline records, the PJ sand dune is an inland sand dune and not a coastal sand dune. Based on further information of climate and temperature change after the Little Ice Age (LIA) and human activity in northeastern China, we conclude that the PJ sand dune accumulation was very likely impacted by the immigrants and land reclamation at the end of Qing dynasty. The fading corrected IR 50 ages, the apparent and fading corrected pIRIR 150 ages are consistent with quartz ages for two sandy soil samples but overestimate those for six sand samples. The overestimation of the feldspar ages is derived from the residual signal which has not been bleached before burial. The offset obtained from the difference between the quartz OSL and the feldspar pIRIR 150 ages are ~20-160 a (predicted residual dose: ~0.08-0.60 Gy), whereas the measured residual dose after bleaching 4 h in a solar simulator yielded age overestimation of ~10-40 a (~0.05-0.16 Gy). The age discrepancy calculated from the predicted residual was larger than those obtained from the laboratory measured residuals. We conclude that the pIRIR 150 of aeolian sediment is applicable for samples older than ~1000 years where the effect of the residual dose become negligible.

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Review and assessment of the potential of post-IR IRSL dating methods to circumvent the problem of anomalous fading in feldspar luminescence

Cited by 134 publications

References 86 publications

Luminescence dating of Holocene beach-ridge sands on the Yumigahama Peninsula, western Japan

Luminescence dating of Holocene beach-ridge sands on the Yumigahama Peninsula, western Japan

Testing of a single grain OSL chronology across the Middle to Upper Palaeolithic transition at Les Cottés (France)

Quartz OSL and K-feldspar post-IR IRSL dating of sand accumulation in the Lower Liao Plain (Liaoning, NE China)

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