What is potassium argon dating used for
Potassium-argon dating , for instance, can provide the age of a specimen by clocking the rate at which radioactive isotopes of these elements have decayed. When radiometric methods cannot be applied, investigators may still ascribe a relative age to a fossil by relating it to the….
What is radiocarbon dating used for
The length of time required for one-half of the unstable carbon — 14 nuclei to decay i. Libby began testing his carbon — 14 dating procedure by dating objects whose ages were already known, such as samples from Egyptian tombs. He found that his methods, while not as accurate as he had hoped, were fairly reliable.
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