geological dating


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Noun1.geological dating - use of chemical analysis to estimate the age of geological specimens
chemical analysis, qualitative analysis - the act of decomposing a substance into its constituent elements
potassium-argon dating - geological dating that relies on the proportions of radioactive potassium in a rock sample and its decay product, argon
carbon dating, carbon-14 dating, radiocarbon dating - a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14; believed to be reliable up to 40,000 years
rubidium-strontium dating - geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47,000,000,000 years
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First, the basics of atoms, nuclei, and decay are covered, and the use of radionuclides for geological dating is explained, covering a variety of element systems including U-Th-Pb, K-Ar-Ca, Rb-Sr, Sm-Nd, Lu-Hf, and Re-Os, with a special focus on uranium and thorium.
Researchers said that geological dating at the sites would help in fully interpreting the drawings.

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