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Uranium-thorium dating method

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Thank you for your feedback. Instead, it calculates an age from the degree to which secular equilibrium has been restored between the radioactive isotope thorium and its radioactive parent uranium within a sample. U-Pb, Pb-Pb, and fission track dating.
Any text you add should be original, not copied from other sources. U-Pb, Pb-Pb, and fission track dating. Thank you for your feedback. Unlike other types of radioactive dating, Uranium-Thorium U-Th dating doesn't reach a stable end point. The Editors of Encyclopaedia Britannica. Views Read Edit View history.

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Atom, smallest unit into which matter can be divided without the release of electrically charged particles.
The method assumes that the sample does not exchange Th or U with the environment i. There was a problem with your submission. Uranium—thorium dating , also called thorium dating , uranium-series disequilibrium dating or uranium-series dating , is a radiometric dating technique established in the s which has been used since the s to determine the age of calcium carbonate materials such as speleothem or coral. University of Wisconsin-Madison Chemistry Department. The Earth can be assumed to be a very large sample containing lead evolving from primordial lead by radiogenic increments. Learn More in these related Britannica articles: You can make it easier for us to review and, hopefully, publish your contribution by keeping a few points in mind.
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