Relative Dating 2 layer comparison

Front

What does the law of crosscutting state?

Back

The law of crosscutting states that a fault or intrusion is younger than the rocks it cuts through.

Front

How can you determine which geological layer is older?

Back

You can determine which layer is older by comparing its position relative to other layers and intrusions.

Front

What is an intrusion in geology?

Back

An intrusion is a body of igneous rock that forms when magma cools and solidifies beneath the Earth's surface.

Front

If Layer A is below Layer B, which layer is older?

Back

Layer A is older than Layer B.

Front

What is relative dating?

Back

Relative dating is a method used to determine the age of rocks and fossils in relation to one another.

Front

What does it mean if two layers are the same age?

Back

If two layers are the same age, they were formed at the same time in geological history.

Front

How does the principle of superposition help in dating layers?

Back

The principle of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What is the significance of fossils in relative dating?

Back

Fossils help in relative dating by providing clues about the age of the rock layers in which they are found.

Front

What is a fault in geological terms?

Back

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

Front

How can you tell if a fault is older or younger than the surrounding rock?

Back

A fault is younger than the rocks it cuts through, as it must have occurred after the formation of those rocks.