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Originally Posted by dr wadd
You are aware that carbon dating isn`t used to date rocks? I'd hate to think you were spouting off about something that you don`t know anything about again. I trust you also know that carbon dating can only measure over a limited time-frame, and *no* scientist would make the claim that it can date something 1 billion years old. At the very best it can date things within a range up to 100,000 years from present, and that is only using some advanced techniques.
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Jerrek has his dating methods confused, although there is some truth to the conclusion he's trying to draw. Radiocarbon dating is claimed effective back to approximately 70,000 years BP (Before Present). Beyond that, there is too little Carbon-14 remaining in the object for its ongoing decay to be detected. You's reright, Doc, in that C-14 dating only works on organic matter.
Potassium-Argon dating, on the other hand, is a geologist's tool for dating rock claimed to be more than 100,000 years old and up to 4.3 billion years old (the apparent age of Earth). It measures the rate of decay of potassium in volcanic rocks into argon gas. What the geologists don't like to admit is that if the rock sample has ever been immersed in water, its apparent age becomes vastly greater. And those who argue for a 'young Earth' generally also argue that the entire planet was flooded by water at one point.
What's this got to do with gay marriage?
