Geologic Time Retake

The diagram shows a rock profile containing layers of different types of rock and igneous intrusions.

Which sequence lists the correct order of events in the area represented in the diagram?

• 1. Igneous intrusion Y formed.

  2. The shale layer was deposited.

  3. Igneous intrusion X formed.

  4. The limestone layer was deposited.

  5. The mudstone layer was deposited.

• 1. The mudstone layer was deposited.

  2. The limestone layer was deposited.

  3. The shale layer was deposited.

  4. Igneous intrusion Y cut into the mudstone, limestone, and shale.

  5. Igneous intrusion X cut into the mudstone, limestone, and shale.

• 1. Igneous intrusion X formed.

  2. Igneous intrusion Y formed.

  3. The shale layer was deposited.

  4. The limestone layer was deposited.

  5. The mudstone layer was deposited.

• 1. The layer of mudstone was deposited.

  2. The layer of limestone was deposited.

  3. Igneous intrusion Y cut into the mudstone and limestone.

  4. The shale layer was deposited.

  5. Igneous intrusion X cut into the mudstone, limestone, and shale.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

The principle of __________________states that, in an undisturbed sequence, the oldest rocks are at the bottom of the sequence and successive layers are younger than those below them.

Tags

NGSS.MS-ESS1-4

The fossil record helps us do what? Check all that apply.

• Determine how old rock layers are.

• Determine the color of ancient organisms.

• Determine what the environment was like a long time ago.

• Determine if there were any extinctions that occurred.

Tags

NGSS.MS-LS4-1

A geologist identifies the identical index fossils in rock layers from two different areas. Which conclusion is best supported by this discovery?

• The deposition rate of the two rock layers was identical.

• The fossil organism evolved independently in the two separate areas.

• The two rock layers were deposited at approximately the same time.

• The index fossil will also occur in sediment deposited on top of these rock layers.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What are the 3 criteria for an index fossil?

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is one reason the presence of iridium leads scientists to hypothesize that a meteorite impact caused the mass extinction of dinosaurs?

• There are no fossils of dinosaurs in rocks below the iridium layer.

• Iridium is only common on Earth and is never found in meteorites.

• All dinosaur fossils contain iridium.

• There are no fossils of dinosaurs in rocks above the iridium layer.

Tags

NGSS.MS-LS4-1

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

• fault
• intrusion
• inclusion
• unconformity

Tags

NGSS.MS-ESS1-4

What is the correct order from oldest to youngest?

• JKLM

• MJKL

• JKML

• MLKJ

Tags

NGSS.MS-ESS1-4

What geologic principle tells me the age of M

• Cross-Cutting Relationships

• Superposition

• Original Horizontality

• Inclusions

Tags

NGSS.MS-ESS1-4

The diagram shows fossils buried in layers of sediment. Which statement is supported by the information in the diagram?

• The fossil in layer Z is the youngest.

• The fossils in layers Y and Z are younger than the fossil in layer V.

• The fossil in layer Y is older than the fossil in layer W.

• The fossil in layer X is older than the fossil in layer Z.

Tags

NGSS.MS-ESS1-4