Absolute Age

The number of years that have passed since the rock formed is the rock's

• relative age

• law of superposition

• absolute age

• index fossil

Tags

NGSS.MS-ESS1-4

Which is the most accurate form of absolute dating?

• radiometric dating

• erosion rate

• deposition rate

• index fossils

How is radioactive dating used to determine the absolute age of rocks?

• The percent of radioactive parent isotopes remaining in the rock is compared to the amount of stable daughter isotopes that are present

• it compares the radioactive isotope in a younger layer of rock to an older layer

• isotopes of different compounds are compared

• daughter isotopes are compared to sister isotopes

Tags

NGSS.HS-PS1-8

Exact age in years of a rock.

• Relative Age

• Absolute Age

Rock A is 532 years old and Rock B is 945 years old.

• Relative Age

• Absolute Age

Rock A's age is determined using radioactive decay.

• Relative Age

• Absolute Age

Tags

NGSS.HS-PS1-8

Rock A has a half-life of 30 years.

• Relative Age

• Absolute Age

Which layer is the oldest?

• Volcanic Flow

• Limestone

• Granite

• Shale

Tags

NGSS.MS-ESS1-4

This element is used in radiomentric dating of rocks?

• Uranium

• Carbon-14

What is the definition of absolute age in geology?

• The age of a rock or fossil in comparison to other rocks or fossils

• The exact number of years since a rock or fossil was formed

• The age of a rock layer based on its position in a sequence

• The age of a rock determined by the presence of index fossils