Dating artifacts fossils

Thus dating that particular tree does not necessarily indicate when the fire burned or the structure was built.

The date measured reveals the last time that the object was heated past the closure temperature at which the trapped argon can escape the lattice.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.After yet another 5,730 years only one-eighth will be left.By measuring the carbon-14 in organic material, scientists can determine the date of death of the organic matter in an artifact or ecofact.

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