dating gang members - Is carbon dating advisable for measuring the age of
However, measurements show that C-14 is still rapidly building up in the atmosphere.
This fact alone indicates that the atmosphere is only a few thousand years old.
That is, the carbon dioxide becomes the food for plants and trees, and these in turn become food for animals and humans.
The net result is that every living thing contains normal carbon (C-12) and some C-14.
Carbon-14 decays relatively quickly, and at about 50,000 years after the death of the organism no C-14 atoms will be left in the remains. As in the case of the other radiometric methods, the technique consists of measuring the ratio of C-14 to C-12 in the specimen and calculating the age based on the known rate of decay.