Question: Which is better radioactive dating or index fossils?

Which type of fossil dating is more accurate?

radiometric dating Absolute dating is used to determine a precise age of a rock or fossil through radiometric dating methods. This uses radioactive minerals that occur in rocks and fossils almost like a geological clock. Its often much easier to date volcanic rocks than the fossils themselves or the sedimentary rocks they are found in.

Are index fossils used for radioactive dating?

Radiometric dating and index fossils are two methods we can use to figure out how old fossil-containing chunks and layers of rock are. Sedimentary rock forms layers as particles settle on sea beds over millions of years. If we see one of these fossils in a layer of rock, this tells us how old that rock must be.

Which type of geologic dating is the most accurate?

No bones about it, fossils are important age markers. But the most accurate forms of absolute age dating are radiometric methods. So geochronolgists just measure the ratio of the remaining parent atom to the amount of daughter and voila, they know how long the molecule has been hanging out decaying.

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