Comparing radiometric dates The rocks containing fossil A have 1:1 ratio of pare

Question

Comparing radiometric dates

The rocks containing fossil A have 1:1 ratio of parent:daughter isotopes. The rocks containing fossil B have a 1:4 ratio of parent:daughter isotopes of the same element. Based on your knowledge of parent:daughter isotopes, select all the true statements.

   Fossil B is younger than fossil A.    Fossil A is younger than fossil B.    Fossil A is most likely to be found at a higher stratigraphic position than fossil B.    Fossil B is approximately half the age of fossil A.    Fossil B is at least twice the age of fossil A.

Explanation / Answer

Fossil A is younger than fossil B.

Fossil B is atlest twice the age of fossil A

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