The Principles of Relative-Age Dating Review

Front

What are the two essential processes that play roles in Earth's history?

Back

Catastrophic processes and Uniformitarian processes.

Front

Which layer is considered the oldest in a sequence of rock layers?

Back

Layer B.

Front

What geologic feature is typically the youngest?

Back

Fault J.

Front

What must exist for an event to affect a rock?

Back

The rock must exist first.

Front

What principle states that geologic change occurs suddenly?

Back

Catastrophism.

Front

What is the principle of Original Horizontality?

Back

Sedimentary layers are originally deposited horizontally.

Front

What does Uniformitarianism suggest about geological processes?

Back

Geological processes occurring today are similar to those that occurred in the past.

Front

What is the significance of Crosscutting Relationships?

Back

If a geologic feature cuts through another, it is younger than the feature it cuts.

Front

What is an example of a catastrophic event in Earth's history?

Back

Volcanic eruptions or asteroid impacts.

Front

How can scientists determine the relative age of rock layers?

Back

By examining the order of layers and their features.