| 单词 | potassium–argon dating |
| 释义 | potassium–argon datingnoun [mass noun] Geology A method of dating rocks from the relative proportions of radioactive potassium-40 and its decay product, argon-40.Using Potassium-Argon dating, the newly formed rocks gave ages between 0.5 and 2.8 million years....
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