Dinosaur fossils are often dated by using an element other than carbon, such as potassium-40, that has
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Dinosaur fossils are often dated by using an element other than carbon, such as potassium-40, that has a longer half-life (in this case, approximately 1.25 billion years). Suppose the minimum detectable amount is 0.1% and a dinosaur is dated with 40K to be 68 million years old. Is such a dating possible? In other words, what is the maximum age of a fossil that we could date using 40K?
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Let t measure time since a dinosaur died in millions of years and let yt be the amou...View the full answer
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