Lithological controls on light penetration into rock surfaces – Implications for OSL and IRSL surface exposure dating

Abstract

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First luminescence-depth profiles from boulders from moraine deposits: Insights into glaciation chronology and transport dynamics in Malta valley, Austria

“…2). None of the profiles show disturbances such as have been attributed to opaque minerals by Meyer et al (2018). This is not suprising as no significant change in lithology could be found in between the slices of the different cores (Figs.…”

Evaluating optically stimulated luminescence rock surface exposure dating as a novel approach for reconstructing coastal boulder movement on decadal to centennial timescales

“…eralic aliquots used for dating. Additional signal scatter for our samples may be introduced by spatial variations of light penetration that is caused by heterogeneities in the rock mineralogy (Meyer et al, 2018) and core-to-core variations of OSL signal resetting (Sellwood et al, 2019). Previous studies demonstrated that lithologies with brighter quartz signals in polymineralic samples (e.g.…”

Optically stimulated luminescence dating of a probable Native American cairn and wall site in Eastern Pennsylvania

“…Sometimes the second slice had a lower equivalent dose than the first slice. This is counter-intuitive but can be explained by the fact that light will take the path of least resistance, and if some materials which are hard for light to penetrate are on the surface, the light will more easily go around it and under it (Meyer et al., 2018). Also, the first slice is less flat, following the contour of the original surface, and that may affect the luminescence.…”