radiometric dating


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Related to radiometric dating: Carbon 14 dating

radiometric dating

n.
A method for determining the age of an object based on the concentration of a particular radioactive isotope contained within it and the half-life of that isotope.

radiometric dating

n
(Archaeology) any method of dating material based on the decay of its constituent radioactive atoms, such as potassium-argon dating or rubidium-strontium dating. Also called: radioactive dating

ra′diomet′ric dat′ing


n.
any method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived radioactive elements or the amount of a long-lived radioactive element plus its decay product.
[1965–70]

ra·di·o·met·ric dating

(rā′dē-ō-mĕt′rĭk)
A method for determining the age of an object based on the concentration of a particular radioactive isotope contained within it. The amount of the isotope in the object is compared to the amount of the isotope's decay products. The object's approximate age can then be figured out using the known rate of decay of the isotope. Radiocarbon dating is one kind of radiometric dating, used for determining the age of organic remains that are less than 50,000 years old. For inorganic matter and for older materials, isotopes of other elements, such as potassium, uranium, and strontium, are used.

radiometric dating

Dating rocks by the known rate of decay of radioactive elements that they contain.
References in periodicals archive ?
Paleontologists have for years painstakingly collected fossils from these sites, and worked to precisely determine their ages using radiometric dating.
The system is dedicated to this special application and will considerably improve radiometric dating and trace element analysis in pure and applied science in an interdisciplinary perspective.
Mikhail Marov of the Vernadsky Institute of Geochemistry and Analytical Chemistry said scientists had determined the meteorite's age by observing the amount of radioactive isotopes and their decay byproducts, a technique called radiometric dating.
It could prove especially useful when there is no direct communication with Earth that allows for estimation of its position using radiometric dating or images provided by orbiters," noted the researcher.
Radiometric dating of a granodiorite at the Cuttaburra A prospect indicates that this mineralised system may be Middle Silurian in age and thus indicating that the host rocks are older than those hosting the Cobar-type deposits.
Students were asked questions about superposition and radiometric dating.
There is special emphasis on how recent advances in radiometric dating, functional morphology, molecular biology, and archaeological inference have impacted the field.
Scientists have linked crater density to age for locations on the moon using radiometric dating of samples from Apollo missions.
volcanism, radiometric dating, atmospheres, and the roles of water and erosion.