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NUMERIC AGE DETERMINATION [1 record]
Record 1 - internal organization data 2006-11-15
Record 1, English
Record 1, Subject field(s)
- Chronology
- Geology
Record 1, Main entry term, English
- numerical age determination
1, record 1, English, numerical%20age%20determination
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
- numerical age dating 2, record 1, English, numerical%20age%20dating
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Numerical age dating means establishing the approximate age in years of a particular layer of rock by analyzing the decay of radioactive elements. Radioactive decay occurs when an unstable form of a chemical element naturally converts to a stable form of another chemical element. Volcanic ash layers, for example, contain radioactive elements. When the ash layer forms, the radioactive elements begins to decay at a constant rate. 3, record 1, English, - numerical%20age%20determination
Record number: 1, Textual support number: 2 CONT
Calibration of the geological time scale requires numerical age determinations of distinct events in Earth history defined by the rock record. 4, record 1, English, - numerical%20age%20determination
Record number: 1, Textual support number: 1 OBS
numerical age determination: term used at Natural Resources Canada - Earth Sciences Sector. 5, record 1, English, - numerical%20age%20determination
Record 1, Key term(s)
- numeric age determination
- numeric age dating
Record 1, French
Record 1, Domaine(s)
- Chronologie
- Géologie
Record 1, Main entry term, French
- datation numérique
1, record 1, French, datation%20num%C3%A9rique
correct, see observation, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Aujourd'hui, la mesure du temps primordial est fondée sur des méthodes de datation numérique et le perfectionnement de la datation par le radiocarbone met en lumière les nuances de sa résolution. 2, record 1, French, - datation%20num%C3%A9rique
Record number: 1, Textual support number: 1 OBS
datation numérique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 3, record 1, French, - datation%20num%C3%A9rique
Record 1, Spanish
Record 1, Textual support, Spanish
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