Determining Relative Age

The statement that the oldest layer will be at the bottom in an undisturbed sequence of rock layers is called the Principle of ....

• Inclusions
• Unconformities
• Cross-Cutting Relationships
• Superposition

The Principle of Cross-Cutting Relationships states that an igneous intrusion is 

• always younger than the layers it cuts across
• always older than the layers it cuts across
• the same age as the rock it melted
• none of the answers are correct

Relative age dating is used to determine the...

• actual age of an event
• length of time between two events
• age of one event in comparison with other events
• rate at which a geologic process occurs

Older rocks contained within newer rocks are called...

• intrusions
• inclusions
• fossils
• faults

Which of the following correctly lists the layers in order from oldest to youngest?

• A, B, C, D, E
• E, B, C, D, A
• E, D, C, B, A
• C, B, A, D, E

How old is the Earth?

• 4.6 billion years
• 1.4 billion years
• 4.6 million years
• 6000 years

What is the oldest layer in the outcrop?

• B
• C
• D
• E

What is the youngest layer in the outcrop?

• A
• B
• C
• D

The statement "Layer B is younger than layer E" can be determined by using which principle?

• Principle of Horizontality
• Principle of Cross-Cutting Relationships
• Principle of Inclusions
• Principle of Superposition

The rock formation labeled "P" is a(n)...

• fault
• intrusion (dike)
• inclusion
• unconformity