Recent Examples of radiocarbon from the Web
But new radiocarbon analysis suggests they were built in about 3,300BC - just a few hundred years after the first farms emerged in Britain.
The same should be true of mushroom tissue, with the level of radiocarbon serving as an indicator of the year in which the carbon was assimilated.
Hobbie notes that people can be carbon-dated, thanks to radiocarbon isotopes in tooth enamel and other human tissues put together after the thermonuclear tests of the mid-20th century.
Any soft tissue in the fossilized bones had long decayed, so scientists couldn't use radiocarbon dating to determine their age.
Because the collagen in the bones was too decayed for radiocarbon dating, the researchers estimated the age of the mastodon bones and tools using uranium dating.
Mr. Nielsen and his colleagues used radiocarbon dating and statistical methods to measure the sharks’ ages.
The findings, radiocarbon dated to around 14,550 years ago, puts humans in the southeast U.S. about 1500 years earlier than previously thought.
The level of carbon-14 found in archeological samples is used, through a method known as radiocarbon dating, to accurately determine the age of once-living material up to about 50,000 years.
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. Send us feedback.
Origin and Etymology of radiocarbon
International Scientific Vocabulary
First Known Use: 1936See Words from the same year
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