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carbon-14

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carbon-14 (14C),
a beta-emitter with a half-life of about 5700 years. It occurs naturally, arising from cosmic rays, and is used as a tracer in studying various aspects of metabolism and in dating relics that contain natural carbonaceous materials. Compare carbon-11.


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Carbon dating is possible because carbon-14 decays to nitrogen-14.
Correction by Science News
Suess, The Carbon-14 Content of Urban Airborne Particulate Matter, Int.
The remarkable metrological history of radiocarbon dating [II] by Currie, Lloyd A. / Journal of Research of the National Institute of Standards and Technology
2) Carbon-14 analysis was also added after 1949 to date artifacts emerging from the systematic exploration of numerous sites from Alaska to Patagonia.
The current debate about the origins of the Paleoindians of America by Schiffner, Daniel C. / Journal of Social History
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