Geology Question:
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What time period can carbon-14 dates have?
Answer:
Carbon 14 has a half-life of 5,730 years, and therefore it can be used to date very accurately a large majority of things, particularly wood and so on.
It is only not useful for ancient things where all the carbon 14 will have gone, or almost gone - and for these there are other isotopes of other elements, that can be used with a much longer half-life.
It is only not useful for ancient things where all the carbon 14 will have gone, or almost gone - and for these there are other isotopes of other elements, that can be used with a much longer half-life.
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