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Physics, 18.07.2020 17:01 miracle96

Which of the following scenarios would be optimal for obtaining a date from radioactive decay using these isotopes: 87Rb, 147Sm, 235U, 238U, 40K, or 14C? There may be more than one answer that is appropriate. Explain your reasoning for why the remaining scenario(s) would be inappropriate/impossible to use that particular isotope. Answers should include a discussion on usable ages for each system and whether the necessary isotopes would be found in the material to be dated. a. A meteorite that formed early in the formation of the solar system.

b. A rock formed through a mountain building event around 420 million years ago.

c. Volcanic ash from an eruption 60 million years ago.

d. An earthquake scarp that formed along the San Andreas Fault 50 years ago.

e. An Incan archaeological dig site in the highlands of Peru.

f. A tree from a forest in England that is suspected to be the oldest in the British Isles.

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Which of the following scenarios would be optimal for obtaining a date from radioactive decay using...

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