Circumvention of anomalous fading in feldspar luminescence dating using Post-Isothermal IRSL

Lamothe, Michel; Brisson, Laurence Forget; Hardy, F.

doi:10.1016/j.quageo.2020.101062

Cited by 15 publications

(10 citation statements)

References 47 publications

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“…Methods involving isolation of the fast-decay signal in quartz used for dating (e.g., Bulur et al, 2000;Ballarini et al, 2007;Bailey, 2010;Cunningham and Wallinga, 2010;Durcan and Duller, 2011;Combès and Philippe, 2017) and infrared stimulated luminescence (IRSL) signals with lower (Thomsen et al, 2008;Buylaert et al, 2009) or negligible (Thiel et al, 2011;Li and Li, 2011;Lamothe et al, 2020) fading rates in feldspar have been developed, but tectonically active settings remain challenging to date. Feldspars may be dim and insensitive in volcanic regions when the sediments are dominated by Ca or Na feldspars, which are often not removed in density separation because the grains contain intergrown minerals (Sontag-González et al, 2021).…”

Section: Geologic Source and Luminescence Sensitivitymentioning

confidence: 99%

“…Feldspar samples are typically stimulated with infrared (IR, ∼850 nm) light, and the resultant luminescence signal is measured through blue wavelength filters. Infrared stimulated luminescence (IRSL) measurements are made at 50 °C or using elevated-temperature, post-IRSL, or isothermal IRSL to circumvent or reduce the effects of anomalous fading or signal loss over time (Thomsen et al, 2008, Buylaert et al, 2009Li and Li, 2011;Lamothe et al, 2020;Zhang and Li, 2020).…”

Section: Luminescence Measurements and Analysismentioning

confidence: 99%

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Guide for interpreting and reporting luminescence dating results

et al. 2022

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The development and application of luminescence dating and dosimetry techniques have grown exponentially in the last several decades. Luminescence methods provide age control for a broad range of geological and archaeological contexts and can characterize mineral and glass properties linked to geologic origin, Earth-surface processes, and past exposure to light, heat, and ionizing radiation. The applicable age range for luminescence methods spans the last 500,000 years or more, which covers the period of modern human evolution, and provides context for rates and magnitudes of geological processes, hazards, and climate change. Given the growth in applications and publications of luminescence data, there is a need for unified, community-driven guidance regarding the publication and interpretation of luminescence results. This paper presents a guide to the essential information necessary for publishing and archiving luminescence ages as well as supporting data that is transportable and expandable for different research objectives and publication outlets. We outline the information needed for the interpretation of luminescence data sets, including data associated with equivalent dose, dose rate, age models, and stratigraphic context. A brief review of the fundamentals of luminescence techniques and applications, including guidance on sample collection and insight into laboratory processing and analysis steps, is presented to provide context for publishing and data archiving.

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Section: Geologic Source and Luminescence Sensitivitymentioning

confidence: 99%

Section: Luminescence Measurements and Analysismentioning

confidence: 99%

Guide for interpreting and reporting luminescence dating results

et al. 2022

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“…For the 63-80 µm feldspar grains, a post-isothermal post-IRSL (pIT) protocol (Lamothe et al, 2020) has been applied (Fig. 6).…”

Section: Feldsparsmentioning

confidence: 99%

Luminescence dating at Border Cave: attempts, questions, and new results

Tribolo

Mercier

Dumottay

et al. 2022

Quaternary Science Reviews

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“…Since Trautmann et al (1998Trautmann et al ( , 1999aTrautmann et al ( , 2000a proposed a model to explain the processes of (IR)-RF of feldspar, our understanding of luminescence processes in feldspar has improved considerably, driven mainly by the developments around conventional IRSL (e.g., Wallinga et al, 2000;Huntley and Lamothe, 2001;Lamothe et al, 2003;Auclair et al, 2003;Murray et al, 2009;Kars and Wallinga 2009;Pagonis and Kulp, 2017;Pagonis et al, 2013Pagonis et al, , 2019Lamothe et al, 2020), the post-IR IRSL (also pIRIR) measurement protocols (Thomsen et al, 2008;, time-resolved IRSL investigations (e.g., Jain and Ankjaergaard, 2011) as well as IR-PL (Prasad, 2017;Prasad et al, 2017Prasad et al, , 2018Kumar et al, 2020).…”

Section: Ir-rf Model and Related Phenomenamentioning

confidence: 99%