Thermoluminescence dating dictionary


The same inductive mechanism is applied in archaeology, geology and paleontology, by many ways. For example, in a stratum presenting difficulties or ambiguities to absolute dating, paleopalynology can be used as a relative referent by means of the study of the pollens found in the stratum. This is admitted because of the simple reason that some botanical species, whether extinct or not, are well known as belonging to a determined position in the scale of time.


Luminescence Profile In the process of making a ceramic vessel, the soft clay vessel must be heated in a kiln to harden it. The process of firing the vessel releases the trapped electrons (energy), and resets the thermoluminescence clock to zero. The process of accumulation of electrons (energy) and then release when heated occurs every time the ceramic vessel is reheated. What an archaeologist would be able to measure using this technique is the last time the vessel was heated above 500 degrees Celcius, either at the time the vessel was first fired or the last time it was heated if it was used as a cooking vessel. In the laboratory, the release of electrons can be induced through heating or the use of a laser beam. The intensity of the light emmisions (luminescence) can be measured to determine the amount of time that has passed since the vessel was last heated and the present laboratory heating of the vessel.


Thermoluminescence dating dictionary

Thermoluminescence dating dictionary



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