Carbon 14 dating used determine age object

­ ­You probably have seen or read news stories about fascinating ancient artifacts.At an ar­chaeological dig, a piece of wooden tool is unearthed and the archaeologist finds it to be 5,000 years old.Although it sometimes requires taking minute samples of an object, even that damage may be unacceptable for some artifacts.

A living organism takes in both carbon-12 and carbon-14 from the environment in the same relative proportion that they existed naturally.

Geologists do not use carbon-based radiometric dating to determine the age of rocks.

Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that.

Other corrections must be made to account for the proportion of throughout the biosphere (reservoir effects).

Additional complications come from the burning of fossil fuels such as coal and oil, and from the above-ground nuclear tests done in the 1950s and 1960s.

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Carbon dating is used by archeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50,000 years.

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