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- The age in years of a particular geologic event or feature, generally obtained with radiometric dating techniques.
Source: Submitted by L. R. Fowler
- The geologic age of a fossil organism, rock, or geologic feature or event given in units of time, usually years. Commonly used as a syn. of isotopic age or radiometric age, but may also refer to ages obtained from tree rings, varves, etc. Term is now in disfavor as it implies a certainty or exactness that may not be possible by present dating methods; i.e., two absolute ages for the same pluton may disagree by hundreds of millions of years. CF: relative age
Source: Dictionary of Mining, Mineral, and Related Terms