Fossils and Rock Dating

The Law of Cross-Cutting Relationships states that an igneous intrusion or a fault is

• always younger than the rock layers it cuts across

• always older than the rock layers it cuts across

• the same age as the rock it cuts across

• none of the answers are correct

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

Tags

NGSS.MS-ESS1-4

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

• fault

• intrusion

• inclusion

• unconformity

Tags

NGSS.MS-ESS1-4

Letter "F" is a....

• inclusion

• intrusion

• fault

• unconformity

Traces or remains of organisms that lived long ago

• Fossil
• Unconformity
• Superposition
• Column

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Gaps in rock records made when agents of erosion remove existing rock layers

• fossils

• unconformities

• permineralized remains

• intrusions

Used to determine whether an event or object is older or younger than another

• Radioactive Dating

• Relative Dating

• Fossil

• Unconformity

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

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

This time frame is also known as the "Age of Mammals"

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-LS4-2