Can carbon dating technique be used to determine the age of a diamond

Selecting Diamonds for Study

Once the organism dies, it stops replenishing its carbon supply, and the total carbon content in the organism slowly disappears. Scientists can determine how long ago an organism died by measuring how much carbon is left relative to the carbon Carbon has a half life of years, meaning that years after an organism dies, half of its carbon atoms have decayed to nitrogen atoms. Similarly, years after an organism dies, only one quarter of its original carbon atoms are still around.

Because of the short length of the carbon half-life, carbon dating is only accurate for items that are thousands to tens of thousands of years old.

Creation Science Book Review, ThousandsNot Billions, Chapter 3, Carbon Dating

Most rocks of interest are much older than this. Geologists must therefore use elements with longer half-lives. For instance, potassium decaying to argon has a half-life of 1. How would you explain that? For all I know they all have C14 in them. Why would evolutionists ever look for C14 anyway? Please help if you can!

How do geologists use carbon dating to find the age of rocks?

These days, carbon 14 is continuously created as cosmic radiation converts nitrogen 14 into carbon 14 in the atmosphere. The rate at which carbon 14 is produced has reached equilibrium with the rate at which carbon 14 naturally decays back into nitrogen. So, the ratio of carbon 14 to carbon 12 is reasonably constant.

The ratio of carbon 14 to carbon 12 in carbon dioxide is the ratio in the atmosphere. Green plants absorb carbon dioxide as long as they are alive.

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They use it to produce sugars, fats, cellulose and other organic material. When they die, they stop absorbing carbon dioxide. The carbon 14 gradually decays to nitrogen.

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The longer it has been since the living thing died, the less carbon 14 there is in the plant. The longer the plant has been dead, the lower the ratio of carbon 14 to carbon 12 in it.