Quote:
On 2002-11-11 17:38, David Hall wrote:
Here's the volcanic rock claim too.
http://www.talkorigins.org/faqs/faq-.../age.html#k-ar
Scroll up for a couple of more general statements on radiometric dating.
And yes, everything I've heard about C-14 is that it's only useful for non-living tissues, because living tissue continually collects C-14, and it only starts decaying once the biological processes have stopped. So that shellfish is right out.
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The major flaw with C14 dating of shellfish is that they don't get their carbon from the atmosphere or plants. They get their carbon from the limestone and other dissolved carbonate minerals in the sea which are relatively old to begin with. Geologists and other scientists familiar with radiometric dating already know this, but young earth creationists still try to use this to discredit radiometric dating.