U-pb age dating

u-pb age dating

Lunisolar Solar Lunar Astronomical year numbering. By using this site, you agree to the Terms of Use and Privacy Policy. The existence of two 'parallel' uranium—lead decay routes U to Pb and U to Pb leads to multiple dating techniques within the overall U—Pb system. The corresponding age equations are: The U—Pb dating method can yield the most precise ages for early solar-system objects due to the optimal half-life of U. U-Pb, Pb-Pb, and fission track dating. Successive collisions between accreted bodies led to the formation of larger and larger planetesimals, finally forming the Earth—Moon system in a giant impact event.

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U-Pb zircon geochronology

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The upper intercept of the linear array aka discordia line can be used to estimate the crystallisation age, whereas the lower intercept yields the age of metamorphism.

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Uranium–lead dating

The isotopic constitution of lead and the measurement of geological time 3. This rearranged equation formed:. It can be used to date rocks that formed and crystallised [2] from about 1 million years to over 4. Therefore, one can assume that the entire lead content of the zircon is radiogenici.

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