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11-Nov-2019 16:34

An additional problem with carbon-14 dates from archeological sites is known as the "old wood" problem.It is possible, particularly in dry, desert climates, for organic materials such as from dead trees to remain in their natural state for hundreds of years before people use them as firewood or building materials, after which they become part of the archaeological record.

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Potassium is common in rocks and minerals, allowing many samples of geochronological or archeological interest to be dated.

One of the most widely used is potassium–argon dating (K–Ar dating).