Seek and ye shall find: creationists boldly go where no evolutionists have gone before.With the recent announcement of soft tissue in off-the-shelf dinosaur bones (6/09/15, 6/10/15), complete with enriched carbon, the obvious question is: does any of it contain carbon-14?
Fossils, however, form in sedimentary rock -- sediment quickly covers a dinosaur's body, and the sediment and the bones gradually turn into rock.
The most widely known form of radiometric dating is carbon-14 dating.
This is what archaeologists use to determine the age of human-made artifacts. The half-life of carbon-14 is only 5,730 years, so carbon-14 dating is only effective on samples that are less than 50,000 years old.
Beyond that timespan, the amount of the original C formed by irradiation of nitrogen by neutrons from the spontaneous fission of uranium, present in trace quantities almost everywhere.
For these samples, other dating methods must be used.
Carbon dating has a certain margin of error, usually depending on the age and material of the sample used.