the 14 biological objects from archaeological excavations of the tram line 2, with particle accelerators, AMS method, including the bone material, burnt or not, with or without extraction of collagen.
A technique for measuring the age of organic remains based on the rate of decay of carbon 14.
It is rapidly oxidized in air to form carbon dioxide and enters the global carbon cycle.
Plants and animals assimilate carbon 14 from carbon dioxide throughout their lifetimes.
Over the years, carbon 14 dating has also found applications in geology, hydrology, geophysics, atmospheric science, oceanography, paleoclimatology and even biomedicine.
Radiocarbon, or carbon 14, is an isotope of the element carbon that is unstable and weakly radioactive. Carbon 14 is continually being formed in the upper atmosphere by the effect of cosmic ray neutrons on nitrogen 14 atoms.
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Gas proportional counting is a conventional radiometric dating technique that counts the beta particles emitted by a given sample. In this method, the carbon sample is first converted to carbon dioxide gas before measurement in gas proportional counters takes place.
Libby thus reasoned that by measuring carbon 14 levels in the remains of an organism that died long ago, one could estimate the time of its death.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radiocarbon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors.
A radiometric dating method for determining the age of life forms which have died in the relatively recent past, having a limit of accuracy of about 60,000 years.
Carbon dating is the result of cosmic radiation which bombards the Earth’s atmosphere, which constantly produces more 14C isotopes from 14N.
An age could be estimated by measuring the amount of carbon-14 present in the sample and comparing this against an internationally used reference standard.