Luminescence dating method

Posted by / 12-Nov-2017 04:54

Over time the uranium-238 very slowly decays into uranium-234 (half-life = 248,000 ).

Radium-226 in the soil exhibits the same level of radioactivity as uranium-238 from which it was originally derived, because of a natural phenomenon called secular equilibrium.

[ Datation par luminescence stimulée optiquement : quelle signification en cas de blanchiment incomplet des sédiments fluviatiles ?

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From the accumulation rate, the age of sediment from a particular depth in the sediment column can be estimated.) and for these purposes can be considered to be present at an unchanging concentration (over time) in the earth's crust.