Review - Chapter 1 2 - Geologic Time

The age of an object in relation to the ages of other objects is known as what?

• relative age
• absolute age
• half-life
• unconformity

The principle that a sedimentary rock layer is older than the layers above it and younger than the layers below it if the layers are not disturbed is called ...

• unconformity
• law of crosscutting relationship
• law of superposition
• varve

A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time is called what?

• law of crosscutting relationships
• unconformity
• radiometric dating
• varve

How does sedimentary rock usually form?

• Vertically
• Diagonally
• Folding
• Horizontally

What is the oldest layer in the outcrop?

• B
• C
• D
• E

What is the youngest layer in the outcrop?

• A
• B
• C
• D

Which of the following is the youngest?

• B
• C
• Intrusion D
• Fault E

What two philosophies have people have people focused on to explain earths Geologic History

• Relative dating and Absolute Dating
• Catastrophism and Uniformitarianism
• Relative Dating and Catastrophism
• Absolute Dating and Uniformitarianism

The idea states the same processes that occurred in the past operate in the same way as they do in the present.

• Absolute Dating
• Relative Dating
• Catastrophism
• Uniformitarianism

How old do Paleontologists believe the Earth is?

• 2015 years old
• 3.6 billion years old
• 4.6 billion years old
• 4.6 million years old