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Is carbon dating used to measure the age of rocks

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The age of the fossil must be determined so it can be compared to other fossil species from the same time period.

A substantial hurdle is the difficulty of working out fossil ages.Carbon normally occurs as Carbon-12, but radioactive Carbon-14 may sometimes be formed in the outer atmosphere as Nitrogen-14 undergoes cosmic ray bombardment.The resulting C-14 is unstable and decays back to N-14 with a measured half-life of approximately 5,730 years.These changes typically occur so slowly that they are barely detectable over the span of a human life, yet even at this instant, the Earth's surface is moving and changing.As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.Nitrogen normally occurs in a seven proton, seven nuetron, nitrogen-14 state.