Radiometric dating of the earth

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This is based upon the spontaneous breakdown or decay of atomic nuclei.

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Hutton's theories were short on evidence at first, but by 1830 most scientists concurred that Noah's ark was more allegory than reality as they documented geological layering.The age of the planet, though, was important to Charles Darwin and other evolutionary theorists: The biological evidence they were collecting showed that nature needed vastly more time than previously thought to sculpt the world.A breakthrough came with the discovery of radioactivity at the beginning of the 1900s.For example, about 1.5 percent of a quantity of Uranium 238 will decay to lead every 100 million years.By measuring the ratio of lead to uranium in a rock sample, its age can be determined.A full discussion of the topic must therefore include the current scientific challenge to the OE concept.

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