Form of dating how long ago mineral grains had been last exposed to sunlight or heating
Luminescence dating refers to a group of chronological dating methods of determining how long ago mineral grains were last exposed to sunlight or sufficient heating. It is useful to geologists and archaeologists who want to know when such an event occurred. It uses various methods to stimulate and measure luminescence.
It includes techniques such as optically stimulated luminescence (OSL), infrared stimulated luminescence (IRSL), radiofluorescence (RF)[1][2][3], infrared photoluminescence (IR-PL)[4] and thermoluminescence dating (TL). "Optical dating" typically refers to OSL and IRSL, but not TL. The age range of luminescence dating methods extends from a few years[5] to over one million years.[6]
^Trautmann, T; Krbetschek, Matthias R; Dietrich, A; Stolz, W (1998). "Investigations of feldspar radioluminescence: potential for a new dating technique". Radiation Measurements. 29 (3–4): 421–425. doi:10.1016/s1350-4487(98)00012-2.
^Trautmann, T; Krbetschek, Matthias R; Dietrich, A; Stolz, W (1999). "Feldspar radioluminescence: a new dating method and its physical background". Journal of Luminescence. 85 (1–3): 45–58. doi:10.1016/s0022-2313(99)00152-0.
^Prasad, Amit Kumar; Poolton, Nigel R J; Kook, Myungho; Jain, Mayank (2017). "Optical dating in a new light: A direct, non-destructive probe of trapped electrons". Scientific Reports. 7 (1): 461. doi:10.1038/s41598-017-10174-8.