Essay
If you obtained a sample of Martian rock, determined the abundances of 230U and 207Pb in it, and found that for every one uranium atom there were seven lead atoms, then what would the age of this rock be? Note that 230U decays to 207Pb with a half-life of 700 million years. Assume that there was no 207Pb in the rock when it originally formed.
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The ratio of the original amount of uran...View Answer
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