Question: What rocks can be dated radiometrically?

Of the three basic rock types, igneous rocks are most suited for radiometric dating. Metamorphic rocks may also be radiometrically dated.

Can sedimentary rocks be radiometrically dated?

Geologists use radiometric dating to estimate how long ago rocks formed, and to infer the ages of fossils contained within those rocks. Sedimentary rocks can be dated using radioactive carbon, but because carbon decays relatively quickly, this only works for rocks younger than about 50 thousand years.

What types of rocks can be used for radiometric dating?

Major radioactive elements used for radiometric dating. Zircon, Uraninite. Muscovite, Biotite, volcanic rocks. Muscovite, Biotite, Metamorphic or Igneous rocks.

Which layer of rock is the youngest?

The law of superposition states that rock strata (layers) farthest from the ground surface are the oldest (formed first) and rock strata (layers) closest to the ground surface are the youngest (formed most recently).

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