radiocarbon dating
E217355
Radiocarbon dating is a scientific method for determining the age of once-living materials by measuring the decay of the radioactive isotope carbon-14.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Radiocarbon Dating (book) | 1 |
| radiocarbon dating canonical | 1 |
Statements (59)
| Predicate | Object |
|---|---|
| instanceOf |
absolute dating method
ⓘ
chronometric dating method ⓘ scientific dating method ⓘ |
| alsoKnownAs |
14C dating
ⓘ
C-14 dating ⓘ radiometric carbon dating ⓘ |
| appliesTo |
bone
ⓘ
charcoal ⓘ hair ⓘ once-living materials ⓘ organic materials ⓘ other carbon-containing biological remains ⓘ paper ⓘ peat ⓘ seeds ⓘ shell ⓘ textiles ⓘ wood ⓘ |
| awardedRecognition | Nobel Prize in Chemistry 1960 to Willard Libby ⓘ |
| basedOn | known half-life of carbon-14 ⓘ |
| calibratedWith |
coral records
ⓘ
dendrochronology ⓘ speleothem records ⓘ tree-ring dating ⓘ varve chronology ⓘ |
| determines | age of organic remains ⓘ |
| developedBy |
Willard F. Libby
ⓘ
surface form:
Willard Libby
|
| developedIn | late 1940s ⓘ |
| fieldUsedIn |
archaeology
ⓘ
climatology ⓘ forensic science ⓘ geology ⓘ oceanography ⓘ paleontology ⓘ |
| firstPublishedIn | 1949 ⓘ |
| hasHalfLifeUsed | about 5730 years ⓘ |
| hasLimitation |
contamination by modern carbon
ⓘ
measurement uncertainty ⓘ old wood effect ⓘ reservoir effects in marine samples ⓘ variations in atmospheric 14C production ⓘ |
| improvedBy | accelerator mass spectrometry (AMS) ⓘ |
| measurementMethod |
accelerator mass spectrometry
ⓘ
beta counting ⓘ liquid scintillation counting ⓘ |
| measures | radioactive decay of carbon-14 ⓘ |
| requires |
assumptions about past atmospheric 14C levels
ⓘ
calibration with other dating methods ⓘ measurement of 14C/12C ratio ⓘ |
| timeRange | up to about 50,000–60,000 years ⓘ |
| underlyingProcess |
cosmic-ray production of 14C in the atmosphere
ⓘ
exponential decay of 14C after death ⓘ incorporation of 14C into living organisms ⓘ |
| usedFor |
calibrating other dating methods
ⓘ
dating archaeological sites ⓘ reconstructing past environments ⓘ studying carbon cycle dynamics ⓘ testing authenticity of artifacts ⓘ |
| usesIsotope | carbon-14 ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Willard F. Libby
this entity surface form:
Radiocarbon Dating (book)