noun
radiometric age
Technical term used in geology, archaeology, and related fields for age determined by radiometric dating methods.
この化石の放射年代は約1万年前と推定された。
The radiometric age of this fossil was estimated to be about 10,000 years.
放射年代測定 refers to the dating method itself, while 放射年代 is the resulting age.
Compound of 放射 (radiation) and 年代 (age, era).