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absolute age  search
UFabsolute dating
 actual age (absolute age)
RTaccelerator mass spectroscopy
 new methods
SNUsed for isotopic (radiometric or radiogenic) dating. For non-isotopic dating, see geochronology. When age is determined, the term dates is indexed with material type, isotopic dating methods and the age found. Indexed with dates or specific methods if ap
absolute age, dates  search
SNFor specific dates, see absolute age and dates.
absolute age, methods  search
SNNot a valid GeoRef index term after 1971. Used in subfiles E, G, N, T and B.