Define luminescence dating

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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.Following the single-aliquot regenerative (SAR) method of Murray and Wintle (2000), the dose equivalent (De) is calculated by first measuring the natural luminescence of a sample.Luminescence dating (including thermoluminescence and optically stimulated luminescence) is a type of dating methodology that measures the amount of light emitted from energy stored in certain rock types and derived soils to obtain an absolute date for a specific event that occurred in the past.A case study of fluvial sands from the lower terrace of the Moselle valley is then presented to describe the range of field and laboratory procedures required for successful luminescence dating.

The trapped charge accumulates over time at a rate determined by the amount of background radiation at the location where the sample was buried.The released electrons emit a photon of light upon recombination at a similar site.In order to relate the luminescence given off by the sample to an age, we first need to obtain the dose equivalent to the burial dose.To put it simply, certain minerals (quartz, feldspar, and calcite), store energy from the sun at a known rate.This energy is lodged in the imperfect lattices of the mineral's crystals.

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