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 continually take in carbon: green plants absorb it in the form of carbon dioxide from the atmosphere, and it is passed to animals through the food chain. Some of this carbon is radioactive carbon-14, which slowly decays to the stable isotope nitrogen-14. When an organism dies it stops taking in carbon, so the amount of carbon-14 in its tissues steadily decreases. Because carbon-14 decays at a constant rate, the time since an organism died can be estimated by measuring the amount of radiocarbon in its remains. The method is a useful technique for dating fossils and archaeological specimens from 500 to 50,000 years old and is widely used by geologists, anthropologists, and archaeologists.

radiocarbon dating

a technique for determining the age of organic materials, such as wood, based on their content of the radioisotope ¹⁴C acquired from the atmosphere when they formed part of a living plant. The ¹⁴C decays to the nitrogen isotope ¹⁴N with a half-life of 5730 years. Measurement of the amount of radioactive carbon remaining in the material thus gives an estimate of its age

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No references found			Finds from the dig are undergoing radio carbon dating. Prehistoric Bronze Age burial site unearthed in Oxford by Asian News International Techniques used in the Uplands Archaeology Initiative study included radio carbon dating and analysis of pollen samples. History of landscape unearthed; STUDY OFFERS GLIMPSE OF PAST by Daily Post (Liverpool, England) 1959 US scientist Willard Libby, who won the Nobel for discovering radio carbon dating, dates Stonehenge at around 2,600BC. The Lourdes of ancient Britain? Dig aims to reveal Stonehenge's ... by guardian.co.uk / guardian.co.uk			radio aid to navigation Radio Altimeter radio altitude radio and radar astronomy Radio and Recording Studio radio and wire integration radio antenna radio approach aids Radio Astronomy Radio Astrophysical Observatory radio atmometer radio attenuation radio aurora radio autopilot coupler radio B battery Radio Background Radiation Radio Beacon radio beam radio bearing radio blackout Radio Broadcast Receiver Radio Broadcasting Radio Buoy radio button radio buttons Radio carbon dating Radio Center Radio Ceramics Radio City Radio City Music Hall radio climatology radio command Radio Communication Radio Communication, Meteor-Burst radio communications guard Radio Communications, Ionospheric radio compass radio control radio controlled radio countermeasures radio deception Radio Depthometer radio detection radio detection and location radio detection and ranging radio direction finder Radio Direction Finding radio direction-finder station radio Doppler radio duct radio echo			Radio broadcasting Radio broadcasting Radio broadcasting Radio broadcasting Radio Broadcasting Industry Web Sites Radio Broadcasting Preservation Act Radio Buoy Radio Business Report Radio button Radio button Radio button Radio button Radio button (computing) Radio button (computing) Radio button (computing) Radio buttons Radio buttons Radio buttons Radio Cab of Marshfield Radio Cadena Nacional Radio call sign Radio call sign Radio Campus Rennes Radio Campus Rouen Radio Canada Radio Canada Radio Canada International Radio Canal Myrtille Radio Caracas Televisión Radio Caraïb Nancy Radio carbon dating Radio carbon method Radio carbon method Radio carbon method Radio Carbon Years Before Present Radio cassette radio cassette recorder Radio CD Radio Center Radio Central Amateur Radio Club Radio Ceramics Radio Chalom Nitsan Radio channel Radio channel Radio channel Radio channel Radio Channel Unit Radio Chaplain Program Network radio chassis Radio Check Radio Chine Internationale Radio Church of God Radio Cité Bretagne Radio Cité Vauban Radio City Radio City (disambiguation) Radio City (radio station) Radio City Music Hall Radio City Music Hall radio climatology Radio clock

radiocarbon dating (redirected from Radio carbon dating)

carbon-14 dating

radiocarbon dating
(redirected from Radio carbon dating)