The dating method is usually performed on the mineral zircon. The mineral incorporates uranium and thorium atoms into its crystal structure, but strongly rejects lead. Therefore, one can assume that the entire lead content of the zircon is radiogenic, i. Thus the current ratio of lead to uranium in the mineral can be used to determine its age.
The method relies on two separate decay chains, the uranium series from U to Pb, with a half-life of 4. Radioactive Decay to Lead. Frequently, the quantity of uranium single black dating website lead are measured for radiometric determination of the age of rocks. The half-life with which uranium decays to form lead is 4. Decay Chain refers to a series of radioactive decays of different radioactive decay products as a sequential series of transformations.
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