Law of Superposition

Front

What is the Law of Superposition?

Back

The Law of Superposition states that in any undisturbed sequence of rocks, the oldest layers are at the bottom and the youngest layers are at the top.

Tags

NGSS.MS-ESS1-4

Front

What does the term 'youngest layer' refer to?

Back

The youngest layer is the most recently formed layer of rock in a sequence.

Tags

NGSS.MS-ESS1-4

Front

How can you determine the order of rock layers?

Back

By applying the Law of Superposition, you can determine that the layers at the bottom are older than those above them.

Tags

NGSS.MS-ESS1-4

Front

What is an inclusion in geology?

Back

An inclusion is a piece of rock that is contained within another rock layer, indicating that the inclusion is older than the layer it is found in.

Tags

NGSS.MS-ESS1-4

Front

What is an intrusion?

Back

An intrusion is a body of igneous rock that has formed from magma that has cooled and solidified beneath the Earth's surface.

Tags

NGSS.MS-ESS2-1

Front

What is a fault?

Back

A fault is a fracture or zone of fractures between two blocks of rock, which can cause displacement.

Front

What is an unconformity?

Back

An unconformity is a surface that represents a gap in the geological record, where rock layers have been eroded or not deposited for a period of time.

Tags

NGSS.MS-ESS1-4

Front

What is the significance of rock layer E in a diagram?

Back

Rock layer E is often the oldest layer in a sequence, indicating it was deposited first.

Tags

NGSS.MS-ESS1-4

Front

How do you identify the youngest layer in a diagram?

Back

The youngest layer is typically the topmost layer in an undisturbed sequence of rock layers.

Tags

NGSS.MS-ESS1-4

Front

What is the correct order of rock layers from oldest to youngest if given layers 1, 2, 3, 4, 5?

Back

The correct order is 5, 4, 3, 2, 1.

Tags

NGSS.MS-ESS1-4