GEOLOGY
PALEONTOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the amount of the isotopes present in the material when it formed
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the amount of the isotopes measured in the material
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the age of the material being analyzed
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the rate of decay of the isotopes
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Detailed explanation-1: -The basic logic behind radiometric dating is that if you compare the presence of a radioactive isotope within a sample to its known abundance on Earth, and its known half-life (its rate of decay), you can calculate the age of the sample.
Detailed explanation-2: -One of the basic assumptions in carbon-14 dating is that the sample being analyzed has undergone only radioactive decay and has remained unaltered by any other process over the years since it ceased interaction with the biosphere.
Detailed explanation-3: -All absolute isotopic ages are based on radioactive decay, a process whereby a specific atom or isotope is converted into another specific atom or isotope at a constant and known rate.
Detailed explanation-4: -The amount of daughter elements of the original sample is known. None of the radioactive element or the daughter element has been added to, or taken away from, the sample. More items