The Creationists' Nightmare

[Undeceived]

Your whole argument rests on one big "if", which isn't particularly plausible. You will need more support than christian dogma.

If not absolute dating, by what do you know the earth is old?

As to what you said about K-Ar; The rocks may not have been on the surface for very long, but have been in the earth for as long as the K-Ar dating says they have.

K-Ar dates to when the igneous rock was created, i.e. spit out of a volcano.

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If the dates "correspond uncannily" to your fairy tale then one would be at a loss to explain why they went extinct 65 million years ago.

Why do their fossils still contain carbon then? If you carbon-date, they are ~10,000 years old, before calculating error. Suppose just for a second dinosaurs are a couple thousand years old. Then C-14 was correct, and K-Ar was wrong (as it should be for such small dates). All dating first requires a ball-park guess at the age range.