geological dating 1
noundomain: activity
Princeton WordNet [ver.3.1]
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EnglishDefinition
use of chemical analysis to estimate the age of geological specimens
Hypernym
the act of decomposing a substance into its constituent elements
EnglishHyponym
geological dating that relies on the proportions of radioactive potassium in a rock sample and its decay product, argon
a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon 14; believed to be reliable up to 40,000 years
geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47,000,000,000 years
