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

By Bo Li, Z. Jacobs, R. Roberts, Sheng-Hua Li. 2014

156 citations recorded by the source corpus.

Quartz has been the main mineral used for optically stimulated luminescence (OSL) dating of sediments over the last decade. The quartz OSL signal, however, has been shown to saturate at relatively low doses of ∼200–400 Gy, making it difficult to be used for dating beyond about 200 thou-sand years (ka), unless the environmental dose rate is low. The infrared stimulated luminescence (IRSL) from feldspars has been shown to continue to grow to higher dose levels than quartz OSL. The application of IRSL dating of feldspars, however, has long been hampered by the anomalous fading effect. Recent progress in understanding anomalous fading of the infrared stimulated luminescence (IRSL) signals in potassium-feldspar has led to the development of post-IR IRSL (pIRIR) protocols and also a multiple elevated temperature (MET) stimulation (MET-pIRIR) protocol. These procedures have raised the prospect of isolating a non-fading IRSL component for dating Quaternary deposits containing feldspars. In this study, we review the recent progress made on (1) overcoming anomalous fading of feldspar, and (2) the development of pIRIR dating techniques for feldspar. The potential and problems associated with these methods are discussed.

Subfields: Astronomy and Astrophysics, Atmospheric Science, Environmental Chemistry

View Paper: https://www.semanticscholar.org/paper/d546d71272e4c31d7ea1e262204faf873ecb5bdb

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. N. Jankowski
2. R. Roberts
3. Bo Li
4. A. Cunningham
5. Z. Jacobs
6. A. Rosenfeld

In Atmospheric Science

1. Z. Jacobs
2. A. Cunningham
3. Bo Li
4. N. Jankowski
5. A. Rosenfeld
6. R. Roberts

In Environmental Chemistry

1. N. Jankowski
2. R. Roberts
3. Bo Li
4. A. Cunningham
5. Z. Jacobs
6. A. Rosenfeld

Citations in the corpus

• Optical dating in archaeology: thirty years in retrospect and grand challenges for the future (2015, methodology): “…be estimated with lower precision at 313 higher doses, because the growth curve becomes flatter as it approaches saturation, but reliable De 314 estimates of up to 3 times the D0 value have been obtained for feldspars using the non-fading pIRIR signals 315 (Li and Li, 2012; Li et al., 2014a, 2015).”