radioisotope dating

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• 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

• Radiocarbon dating — (sometimes simply known as carbon dating) is a radiometric dating method that uses the naturally occurring radioisotope carbon 14 (14C) to estimate the age of carbon bearing materials up to about 58,000 to 62,000 years.[1] Raw, i.e. uncalibrated …   Wikipedia

• Uranium-uranium dating — is a radiometric dating technique utilizing the comparison of two isotopes of uranium (U) in a sample: 234U and 238U. 234U/238U dating is one of several radiometric dating techniques exploiting the uranium radioactive decay series, in which 238U… …   Wikipedia

• 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 — or radiocarbon dating Method of determining the age of once living material, developed by U.S. physicist Willard Libby in 1947. It depends on the decay of the radioactive isotope carbon 14 (radiocarbon) to nitrogen. All living plants and animals… …   Universalium

• 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

• Young Earth creationism — Part of a series on Creationism History of creationism Neo creationism …   Wikipedia

• Richard A. Muller — (* 6. Januar 1944 in New York City) ist ein US amerikanischer Physiker (experimentelle Teilchenphysik, Geophysik, Astrophysik), der durch populärwissenschaftliche Bücher bekannt ist. Inhaltsverzeichnis 1 Leben und Werk 2 Schriften 3 Weblinks …   Deutsch Wikipedia

• Triassic Period — Interval of geologic time, с 248–206 million years ago, that marks the beginning of the Mesozoic Era. Many new vertebrates emerged during the Triassic, heralding the major changes that were to occur in both terrestrial and marine life forms… …   Universalium

• hydrologic sciences — Introduction       the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology.       In its widest sense hydrology encompasses the study of the occurrence, the… …   Universalium