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Radiometric dating
Calculating an age in years for geologic materials by measuring the presence of a short-life radioactive element (e.g., carbon-14) or a long-life element (e.g., potassium-40/argon-40). The term applies to all methods of age determination based on nuclear decay of naturally-occurring radioactive isotopes. Carbon-14 methods are often used to determine the age of peat or wood found in barrier islands.
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- Part of Speech: noun
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- Industry/Domain: Engineering
- Category: Coastal engineering
- Government Agency: U.S. Army Corps of Engineers
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