potassium-argon dating(redirected from K-Ar dating)
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Related to K-Ar dating: Potassium argon dating
potassium-argon dating[pə′tas·ē·əm ′är‚gän ′dād·iŋ]
Dating of archeological, geological, or organic specimens by measuring the amount of argon accumulated in the matrix rock through decay of radioactive potassium.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.