Useful english dictionary. 2012.
dating — noun use of chemical analysis to estimate the age of geological specimens • Syn: ↑geological dating • Derivationally related forms: ↑date • Hypernyms: ↑chemical analysis, ↑qualitative analysis • … Useful english dictionary
Dating methodologies in archaeology — Dating material drawn from the archaeological record can be made by a direct study of an artifact or may be deduced by association with materials found in the context the item is drawn from or inferred by its point of discovery in the sequence… … Wikipedia
dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or … Universalium
geological horizon — noun a layer of rock with a particular composition (especially of fossils); for dating the stratum • Hypernyms: ↑horizon … Useful english dictionary
rubidium-strontium dating — noun 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 • Hypernyms: ↑dating, ↑geological dating * * * /rooh bid ee euhm stron shee… … Useful english dictionary
potassium-argon dating — noun geological dating that relies on the proportions of radioactive potassium in a rock sample and its decay product, argon • Hypernyms: ↑dating, ↑geological dating * * * /peuh tas ee euhm ahr gon/, Geol. a method for estimating the age of a… … Useful english dictionary
carbon dating — noun 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 • Syn: ↑radiocarbon dating, ↑carbon 14 dating • Hypernyms: ↑dating,… … Useful english dictionary
radiocarbon dating — noun 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 • Syn: ↑carbon dating, ↑carbon 14 dating • Hypernyms: ↑dating, ↑geological… … Useful english dictionary
carbon-14 dating — noun 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 • Syn: ↑radiocarbon dating, ↑carbon dating • Hypernyms: ↑dating, ↑geological… … Useful english dictionary
Radiometric dating — (often called radioactive dating) is a technique used to date materials such as rocks, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.[1]… … Wikipedia
