Equation for carbon dating

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.

The key questions then are: Has the atmospheric ratio of carbon-14 to carbon-12 changed in the past, and if so, why and how much?

The assumption usually made, but rarely acknowledged, is that the ratio of carbon-14 to carbon-12 in the atmosphere before the industrial revolution has always been the sameabout one in a trillion.

Radiocarbon ages less than 3,500 years old are probably accurate.

Afterward, less carbon would be available to enter the atmosphere from decaying vegetation.

With less carbon-12 to dilute the carbon-14 continually forming from nitrogen in the upper atmosphere, the ratio of carbon-14 to carbon-12 in the atmosphere would increase.

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.

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