Radiocarbon dating wood
This element is locked in tiny zircons within the granite. While it stays within the zircon for a period of time, being a very small atom, helium escapes the zircon within a few thousand years.
When creation scientists studied granite samples, they made interesting discoveries.
As our knowledge continues to grow, what we know continues to be in agreement with Scripture.
If we knew the amount of carbon-14 in an organism when it died, we could attempt to date the time of death.
The samples were from a mile below the earth, which, according to inflated evolutionary years, were 1.5 billion years old.
The helium still locked in the samples was studied as well as the rate at which the helium diffused from the rock.
If the atmosphere's ratio of carbon-14 to carbon-12 has doubled since the flood and we did not know it, radiocarbon ages of things living soon after the flood would appear to be one half-life (or 5,730 years) older than their true ages.
If that ratio quadrupled, organic remains would appear 11,460 (2 x 5,730) years older, etc.