lead-207
isotope
Learn about this topic in these articles:
absolute dating
- In geologic history of Earth: The pregeologic period
…evolution of the isotopes of lead-207 and lead-206 is studied from several lead deposits of different age on Earth, including oceanic sediments that represent a homogenized sample of Earth’s lead, the growth curve of terrestrial lead can be calculated, and, when this is extrapolated back in time, it is found…
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