Question

which isotopes used to find age of fossil fuels

Answer 1

Relative Age

Isotope Decay Product Aging of Rocks or Fossils

Carbon-14 Nitrogen Up to 60,000 years

Uranium 238/235 Thorium/Protactinium Hundreds of thousands of years

Potassium-40 Argon Earth's oldest rocks

Uranium-238/235 Lead 1 million to > 4.5 billion years

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Answer 2

Carbon-14 is used to find the age of the fossil.

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