Dating by thermoluminescence Chat trials
Heated stone material, such as hearths, pot boilers, and burnt flints, has been dated as well.
Some regions known to present problems for TL include Indonesia and West Mexico; objects from these areas usually do not successfully yield TL dates.
It is an absolute dating method, and does not depend on comparison with similar objects (as does obsidian hydration dating, for example).
The thermoluminescence technique is the only physical means of determining the absolute age of pottery presently available.
This radiation may in some cases contribute over half the total dose.
Finally, one has to make the measurements regardless of whether the TL of the clay is well-behaved or not.
Warning about fakes using ancient materials What about airport x-rays and radiography? Thus, when one measures dose in pottery, it is the dose accumulated since it was fired, unless there was a subsequent reheating.
In some categories of objects, from China, for example, the actual age is quite precisely known for short-lived styles, and it is possible to work "backwards" to get information about the environment in many parts of the world, and some other parameters not usually measurable for art objects.
These will give an authentic date for a bogus object.