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While people are most familiar with carbon dating, carbon dating is rarely applicable to fossils. Single crystal about: Also called single dating argon or argon-argon Ar-Ar dating, this method is a refinement types an older approach known as potassium-argon K-Ar dating, which is still sometimes used. For example if you have a fossil trilobite and it was found in the Wheeler Formation. Only then can you gauge the accuracy and validity of that race.
Researchers can measure the amount of these trapped electrons to establish an age. The age of the Triceratops can be determined more closely than that of the acritarchs and bacteria and that of the trilobites because the rock unit that contains the Triceratops can itself be radiometrically dated, whereas that of the other fossils could not. Amphora — A two-handled pottery jar with a narrow neck used by the ancient Greeks and Romans to carry liquids, especially wine and oil.
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