The
conventional uniformitarian age for these samples is well beyond 100,000 years (in most cases it is tens to hundreds of millions of years).
The
samples include coal, anthracite, and natural gas, as well as wood, shells, foraminifera, and other fossils. Even some Precambrian graphite samples have carbon 14 ages of about 60,000 years!
Some
of the researchers tried to explain this carbon 14 as contamination, but none of their attempts to clean it were successful.