Carbon 14 is used for radio dating of organic materials
This finding is consistent with the belief that rocks are only thousands of years old, but the specialists who obtained these results have definitely not accepted this conclusion. To keep from concluding that the rocks are only thousands of years old, they claim that the radiocarbon must be due to contamination, either from the field or from the laboratory or from both.Just as intriguing is the discovery of measurable radiocarbon in diamonds.Creationist and evolutionary geologists agree that diamonds are formed more than 100 miles (161 km) down, deep within the earth’s upper mantle, and do not consist of organic carbon from living things.All these results have been reported in the conventional scientific literature. At current decay rates, the number of radiocarbon atoms is halved every 5,730 years.
Because of this exponential decay, carbon-14 atoms can’t survive millions of years.
These findings are reported in the secular scientific literature (but they are usually rejected as measurement errors).