Which type of rock is best suited for radiometric dating quizlet

which type of rock is best suited for radiometric dating quizlet

How is a radiometric date taken from a sedimentary rock?

A radiometric date taken from a grain within a detrital sedimentary rock only gives the age of that one grain, which likely came from a source different from the other grains within the rock. Why is it difficult to assign a numerical age to a sedimentary rock?

Which rock layer is closest to the horizontal when deposited?

Sedimentary rocks are close to horizontal when deposited. Within a sequence of rock layers formed at Earths surface, rock layers lower in the sequence are older.

What type of rock is intruded by a basaltic dike?

While working in the field, you encounter an outcrop in which sandstone, shale, and limestone have been intruded by a basaltic dike. You know that the basaltic dike is younger than the sedimentary rock by applying which law or principle?

How do you determine the age of a sedimentary rock?

A radiometric date taken from a grain within a detrital sedimentary rock only gives the age of that one grain, which likely came from a source different from the other grains within the rock. Cross-Cutting Relationships can be used to determine the relative ages of the sedimentary rocks versus canyon formation. Original Horizontality

What is the difference between radiometric dating and relative dating?

ancient Proterozoic before life Radiometric dating uses the decay of isotopes in rocks to calculate the age of that rock Relative dates _the Hermit Shale is older than the Coconino Sandstone -A rock is between this date and that date, it is older than something, but younger than something else

How is the decay rate of radioactive elements used in radiometric dating?

Radioactive elements decay at a certain constant rate and this is the basis of radiometric dating. But, the decay elements need to be set, much like you would re-set a stop watch for a runner, to ensure an accurate measurement.

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