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What The Fossils Say (with Dr. Donald Prothero)

TheThinkingAtheist

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The Different Types of Radiometric Dating

Dr. Prothro: There are many different systems that are usable for radiometric dating, but they all have their specific areas in which they're more practically used. He says the most practical system for geology and for dating fossils older than a million is potassium argon. And then there are two or three systems used only for the oldest rocks on earth and also for moon rocks and meteorites.

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