Concept information
Preferred term
potassium-argon dating
Definition
- A radiometric dating technique based on the decay of 40 K to the daughter isotope 40 Ar, by electron capture. Together with argon-argon (Ar-40/Ar-39) dating, K-Ar dating is principally used to obtain the ages of potassium-rich minerals in volcanic lavas and tuffs. [Source: Encyclopedia of Environmental Change; potassium-argon (K-Ar) dating]
Broader concept
Belongs to group
URI
https://concepts.sagepub.com/social-science/concept/potassium-argon_dating
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