radioactive dating


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radioactive dating:

see datingdating,
the determination of the age of an object, of a natural phenomenon, or of a series of events. There are two basic types of dating methods, relative and absolute.
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radioactive dating

[¦rād·ē·ō′ak·tiv ′dād·iŋ]
(nucleonics)
References in periodicals archive ?
Scientists would answer that there have been innumerable measurements of dates and that there is consistency among these dates, particularly from different radioactive dating methods.
Gnos' team determined the meteorite's age by radioactive dating. The group describes the turbulent history of the meteorite, dubbed Sayh al Uhaymir (SaU) 169, in the July 30 Science.
In an effort to end the debate, he and his colleagues used two radioactive dating techniques on small mineral grains called zircons that they harvested from the sandstone.
Radioactive dating of minerals in the clinker outcrops suggests that some of the region's coal fires occurred as many as 2.8 million years ago.
Radioactive dating shows that those gems formed about 2.9 billion years ago, says Mark H.
Radioactive dating of the melts and the hydrothermal deposits indicates the Sudbury impact occurred about 1.85 billion years ago.
Radioactive dating shows that the mites were entombed roughly between 3,200 and 800 years ago, Polyak notes.
Astronomers have determined the age of many stars using radioactive dating. A radioactive element's half-life is the time it takes for half of its atoms to decay into lighter so-called daughter elements.

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