[Resettozero]

Radiometric dating is less fruitful than Internet dating.

[lee martell]

How long before Hillary’s name and image are mentioned in connection with weathered old rocks or dubious vintage?
Oh! I just did both.

[PapaBear3625]

The problem for Creationists is that it doesn't matter if a dating method is off by 10% or even 50%. Anything which shows the Earth as having been created much earlier than 4,000 BC throws the creation timeline out the window.

If something is really 100 million years old, instead of 200 million years old, it still invalidates the Creation timeline.

[Verginius Rufus]

This also can apply to people. Helen Thomas wasn’t really as old as she looked.

[Larry Lucido]

I had an uncle who was older than dirt.

Therefore, all dirt is younger than my uncle.

[Spirochete]

Radiometric dating of Earth's rocks has always yielded inconsistent results because they have been weathered by varying degrees and reworked by plate tectonics.

Samples of the Canyon Diablo meteorites were chosen in 1953 because they have been subjected to relatively little melting or weathering. Researchers were fairly certain that this particular meteor was a member of the primordial solar nebula and chose samples of it for radiometric dating. This is the origin of the 4.5 billion year figure; the early to mid 1950s.

http://en.wikipedia.org/wiki/Age_of_the_Earth#Canyon_Diablo_meteorite