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单词 radiometric dating
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ra′diomet′ric dat′ing, 
  1. Geology, Physics, Archaeologyany method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived radioactive elements or the amount of a long-lived radioactive element plus its decay product.
Also called radioactive dating. 
  • 1965–70

Collins Concise English Dictionary © HarperCollins Publishers::
radiometric dating n
  1. any method of dating material based on the decay of its constituent radioactive atoms, such as potassium-argon dating or rubidium-strontium dating
    Also called: radioactive dating
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