Irsl dating


William Shilts, Executive Director
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Page not found The requested page "/shilts/pubs/Balescu_Lamothe_Auclair_&_Shilts_2001_IRSL dating interglacial " could not be found. PRAIRIE RESEARCH INSTITUTE
615 E. Peabody Drive, MC-650
Champaign, IL 61820
Phone: 217-333-5111
Fax: 217-244-1542
[email protected]

All sediments and soils contain trace amounts of radioactive isotopes of elements such as potassium , uranium , thorium , and rubidium . These slowly decay over time and the ionizing radiation they produce is absorbed by mineral grains in the sediments such as quartz and potassium feldspar . The radiation causes charge to remain within the grains in structurally unstable "electron traps". The trapped charge accumulates over time at a rate determined by the amount of background radiation at the location where the sample was buried. 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.


Irsl dating

Irsl dating



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