The Principles of Relative-Age Dating Review

Front

What is the principle that states geologic change occurs suddenly?

Back

Catastrophism

Front

True or False: In order for an event to affect a rock, the rock must exist first.

Back

True

Front

Which geologic feature is the youngest: Intrusion M, Layer D, Fault J, or Layer A?

Back

Fault J

Front

True or False: Catastrophic processes and Uniformitarian processes both play essential roles in Earth's history.

Back

True

Front

What are pieces of rock that become part of another rock called?

Back

Inclusions

Front

What does the principle of Original Horizontality state?

Back

Layers of sediment are originally deposited horizontally.

Front

What is Uniformitarianism?

Back

The principle that the same geological processes that operate today also operated in the past.

Front

What is the significance of Crosscutting Relationships in geology?

Back

If a rock or fault cuts through another rock, it is younger than the rock it cuts.

Front

What are Unconformities in geology?

Back

Gaps in the geological record that indicate periods of erosion or non-deposition.

Front

What is the difference between Catastrophism and Uniformitarianism?

Back

Catastrophism emphasizes sudden, short-lived events, while Uniformitarianism emphasizes gradual, long-term processes.