dating sites in north yorkshire - What is uranium dating used for

Uranium-Lead dating is a radiometric dating method that uses the decay chain of uranium and lead to find the age of a rock.

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The four isotopes are uranium-235, uranium-238, lead-207, and lead-206.

The process of dating finds the two ratios between uranium-235 and lead-207; and uranium-238 and lead-206.

Uranium comes in two common isotopes with atomic weights of 235 and 238 (we'll call them 235U and 238U).

Both are unstable and radioactive, shedding nuclear particles in a cascade that doesn't stop until they become lead (Pb).

The age of a rock can be calculated if its ratio of uranium to lead is known.

Last modified 01-Jul-2019 23:39