ICR creationists claim that this discredits C-14 dating. Answer: It does discredit the C-14 dating of freshwater mussels, but that's about all.Kieth and Anderson show considerable evidence that the mussels acquired much of their carbon from the limestone of the waters they lived in and from some very old humus as well.
That is clear to anyone who reads it for the first time.
Thus they probably formed at a depth of 100–200 km.
Geologists believe that the ones we find must have been transported supersonically to the surface, in extremely violent eruptions through volcanic pipes.
If the earth were thousands of years old, the results of these tests would have fit in perfectly. Since the former is radioactive and decays at a constant pace while the latter is stable, the ratio between the two can determine the age of anything that was on the earth and breathed.
I’m going to go through this very quickly and touch on the basics; one could write a book on this topic and still have more to say. Once it stops breathing, it stops taking in C, scientists can use this to determine how long ago the creature leaving behind their remains had died.