Osl dating in archaeology - Optically stimulated luminescence

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Luminescence dating refers to a group of methods of determining how long ago mineral grains were survive 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 prompt and measure luminescence.

All sediments and soils repress trace amounts of radioactive isotopes of elements such as potassium , uranium , thorium , and rubidium. These slowly rot over time and the ionizing radiation they occasion is absorbed by mineral grains in the sediments such as quartz and potassium feldspar.

  • Optically Stimulated Luminescence (OSL) Dating Basics « FPAN Central Region
  • The OSL (optically stimulated luminescence) dating method exploits dosimetric properties of grains of minerals naturally occurring in sediments and man-made.
  • OSL DATING IN ARCHAEOLOGY. A Bluszcz. Department of Radioisotopes, Institute of Physics, Silesian...
  • In physics , optically stimulated luminescence OSL is a method...
  • Luminescence dating refers to a group of methods of determining how long ago mineral grains were last exposed...
  • The Luminescence Dating Laboratory at the Research Laboratory for Archaeology and the History...
  • Luminescence dating - Wikipedia

The particular advantage of luminescence dating is that the method provides a date for the archaeological artefact or deposit itself, rather than for organic material in assumed association. The typical range for burnt stone or sediment is from about to , years. Views Read Edit View history. Luminescence dating refers to a group of methods of determining how long ago mineral grains were last exposed to sunlight or sufficient heating.

Stimulating these mineral grains using either light blue or green for OSL; infrared for IRSL or heat for TL causes a luminescence signal to be emitted as the stored unstable electron energy is released, the intensity of which varies depending on the amount of radiation absorbed during burial and specific properties of the mineral.

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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. By using this site, you agree to the Terms of Use and Privacy Policy.

Archived from the original on January 3, Luminescence Dating The Luminescence Dating Laboratory at the Research Laboratory for Archaeology and the History of Art, University of Oxford, has been actively involved in the development and application of luminescence dating for more than 50 years.

The photons are detected using a photomultiplier tube.

Applications of Luminescence Dating
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Osl dating in archaeology

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The Luminescence Dating Laboratory at the Research Laboratory for Archaeology and the History of Art, University of Oxford, has been actively involved in the. Request...