What is radioactive dating of rocks rick springfield dating history

Posted by / 24-May-2019 22:12

What is radioactive dating of rocks

Plants take in carbon dioxide, incorporating in their tissues both carbon-14 (unstable) and normal carbon-12 (stable) in the same proportion as they occur in the atmosphere .Carbon-14 then moves up the various food chains to enter animal tissueagain, in about the same ratio carbon-14 has with carbon-12 in the atmosphere.Actually, that ratio may have been quite different.For example, a worldwide flood would uproot and bury preflood forests.

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.When granite rock hardens, it freezes radioactive elements in place.The most common radioactive element in granite is Uranium-238.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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However, before accepting any radiocarbon date, one should know how the technique works, its limitations, and its assumptions.

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