The article you point to only deals with carbon 14 and potassium-argon. These are known to be unreliable in certain cases due to environmental factors.
quote:
Age estimates on a given geological stratum by different radiometric methods are often quite different (sometimes by hundreds of millions of years).
This is true. There are a number of cases I know of where isotope data has proved to be misleading, most notably in the dating of the Mull pluton in Scotland. This used rubidium-strontium isotopes (which are also known to be faulty in certain circumstances).
Geologists know to be wary of isotope data, especially when it
does not fit with the field evidence. But there are other techniques - such as the neodynium one - that have proved to be far more reliable and as such I doubt you will find any cases on the Internet where it has proved to be incorrect.
Take a look at the other topic on carbon14 reliability - my post details some of the factors that can distort isotope data.
The Rock Hound
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"Science constantly poses questions, where religion can only shout about answers."