uranium-lead dating


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uranium-lead dating

[yə′rā·nē·əm ′led ′dād·iŋ]
(geology)
A method for calculating the geologic age of a material in years based on the radioactive decay rate of uranium-238 to lead-206 and of uranium-235 to lead-207.
References in periodicals archive ?
That makes it the perfect medium for uranium-lead dating, a fundamental approach to determining geological age.
If the team's uranium-lead dating technique bears out on more fossil samples then the KT extinction paradigm and the end of the dinosaurs will have to be revised.
We learn how Patterson, born in 1922, was a talented geochemist whose early work was driven by the development of a uranium-lead dating method, using lead and uranium isotopic data from the Canyon Diablo meteorite.