Relative Dating

States that younger rocks lie above older rocks if the layers have not been disturbed

• Law of crosscutting
• Law of superposition
• Relative Dating
• Unconformity

Tags

NGSS.MS-ESS1-4

Analyze the seashell found in the white layer.  Which statement is true of the rock layer that contains this fossil?

• It could also contain a fossil from the bottom layer.
• It is older than the layers below it.
• It is younger than the layers above it.
• It is older than the layers above it.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

What are the relative ages of the features in order from oldest to youngest?

• Limestone, Basalt, Fault, Siltstone
• Siltstone, Fault, Basalt, Limestone
• Limestone, Fault, Basalt, Siltstone
• Limestone, Siltstone, Fault, Basalt

Tags

NGSS.MS-ESS1-4

Relative dating of rock layers tells us that the deeper we dig, _______.

• the younger the rocks get
• the smellier the rocks get
• the harder the rocks get
• the older the rocks get

Tags

NGSS.MS-ESS1-4

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

Tags

NGSS.MS-ESS1-4

According to the law of superposition, which layer is the youngest?

• A
• B
• C

Tags

NGSS.MS-ESS1-4

How does the law of crosscutting explain the age of a fault?

• The fault is younger than the rocks above it.
• The fault is younger than the rocks it cuts through.
• The fault is older than the rocks above it.
• The fault is older than the rocks it cuts through.

Tags

NGSS.MS-ESS1-4

Which of the following is the oldest?

• Layer L
• Intrusion D
• Intrusion H
• Layer E

Tags

NGSS.MS-ESS1-4

What is the last event to happen?

• Deposition of Breccia

• Igneous Intrusion

• Faulting

• Deposition of Limestone

Tags

NGSS.MS-ESS1-4

Which layer is OLDER? Fault E or Intrusion D?

• Fault E

• Intrusion D

Tags

NGSS.MS-ESS1-4