Carbon 14 dating age of earth

Carbon-14 cannot be used to date biological artifacts of organisms that did not get their carbon dioxide from the air.

This rules out carbon dating for most aquatic organisms, because they often obtain at least some of their carbon from dissolved carbonate rock.

Thus the ratio of stable C-12 to unstable C-14, which is known in today's open environment, changes over time in an isolated specimen. As long as the tree lives, it absorbs carbon from the atmosphere in the form of carbon dioxide, both C-12 and C-14.

Once the tree dies, it ceases to take in new carbon, and any C-14 present begins to decay.

Thus, no one even considers using carbon dating for dates in this range.

Once the Flood processes ceased, C-14 began a slow build-up to equilibrium with C-12—a build-up not yet complete.Carbon dating cannot be used on most fossils, not only because they are almost always allegedly too old, but also because they rarely contain the original carbon of the organism that has been fossilized.Also, many fossils are contaminated with carbon from the environment during collection or preservation procedures.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.

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