Fossil radiometric dating
Simply stated, radiometric dating is a way of determining the age of a sample of material using the decay rates of radio-active nuclides to provide a 'clock.' It relies on three basic rules, plus a couple of critical assumptions.The rules are the same in all cases; the assumptions are different for each method.
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A geologist has to be sure that an age of a rock will help dating an important research question before he and methods devotes time and money to making a radiometric age measurement.To explain those rules, I'll need to talk about some basic atomic physics. Hydrogen-1's nucleus consists of only a single proton.
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