Geography, 03.10.2021 18:20 adantrujillo1234

A zircon is tested for age at the University of Arizona. They find 3x as much daughter product (Pb) as parent (U), half-life for uranium is 704 million years. What is the ratio of parent to daughter, How many half-lives have passed for this zircon? How old is the zircon? (age = #half-lives x length of half-life)
What geologic eon is it from?

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A zircon is tested for age at the University of Arizona. They find 3x as much daughter product (Pb)...