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What Is The Principle Behind Radiometric Dating

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Saturday, June 30, 2018 10:04:57 AM
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WHO IS THAT EGYPTIAN MAN? HOLY SHIT HES BEAUTIFUL. Geologist Ralph Harvey and historian Mott Greene explain the principles of radiometric dating and its application in determining the age of Earth. As the uranium in rocks decays, it emits subatomic particles and turns into lead at a constant rate. Cowgirl position Measuring the uranium-to-lead ratios in the oldest rocks on Earth gave scientists an estimated age of the planet of 4. Segment from A Science Odyssey: Geologists have calculated the age of Earth at 4. But for humans whose life span rarely reaches more than years, how can we be so sure of that ancient date? It turns out the answers are in Earth's rocks. Even the Greeks and Romans realized that layers of sediment in rock signified old age.

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Radiocarbon Dating

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Any radioactive substance gives off some amount of radiation in the form of alpha and beta particles and gamma radiation. This radiation can be detected by certain devices.

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