Ioannis Liritzis, the initiator of ancient buildings luminescence dating, has shown this in several cases of various monuments.
The radiation dose rate is calculated from measurements of the radioactive elements (K, U, Th and Rb) within the sample and its surroundings and the radiation dose rate from cosmic rays.
The dose rate is usually in the range 0.5 - 5 grays/1000 years.
The total absorbed radiation dose is determined by exciting, with light, specific minerals (usually quartz or potassium feldspar) extracted from the sample, and measuring the amount of light emitted as a result.
The older the sample is, the more light it emits, up to a saturation limit.
The minerals that are measured are usually either quartz or potassium feldspar sand-sized grains, or unseparated silt-sized grains.
The dating of fractured quartz crystals has numerous geological applications, applied to earthquake recurrence intervals, chronology of volcanic eruptions, meteorite impacts, mass wasting, weathering and fracture during transport and deposition. QHD provides a physical model for the development of other mineral dating techniques.
The problem is that nearby electron/hole trapping centres suffer from localized tunneling, eradicating their signal over time; it is this issue that currently defines the upper age-limit for OSL dating In 1994, the principles behind optical and thermoluminescence dating were extended to include surfaces made of granite, basalt and sandstone, such as carved rock from ancient monuments and artifacts.Feldspar IRSL techniques have the potential to extend the datable range out to a million years as feldspars typically have significantly higher dose saturation levels than quartz, though issues regarding anomalous fading will need to be dealt with first.The concept of using luminescence dating in archaeological contexts was first suggested in 1953 by Farrington Daniels, Charles A. Saunders, who thought the thermoluminescence response of pottery shards could date the last incidence of heating.These methods also do not suffer from overestimation of dates when the sediment in question has been mixed with “old carbon”, or -deficient carbon that is not the same isotopic ratio as the atmosphere.In a study of the chronology of arid-zone lacustrine sediments from Lake Ulaan in southern Mongolia, Lee et al.Diffusivity coeffients for temperature, crystallographic orientation due to anisotrophy of quartz and the initial H content provide a general equation for calculation of age.The activation energy is 57 k J/mole in the temperature range from ambient to 200C. The error is 20-35% depending on the defects in the quartz structure and exposure temperature.It uses various methods to stimulate and measure luminescence.It includes techniques such as optically stimulated luminescence (OSL), infrared stimulated luminescence (IRSL), and thermoluminescence dating (TL).Luminescence dating refers to a group of 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.