Earth Science: Relative Dating Review

Front

How do geologists use relative dating?

Back

Geologists use relative dating to place rocks in order from youngest to oldest.

Front

Is extrusion E older or younger than layer D?

Back

Extrusion E is younger than layer D.

Front

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

Back

The correct order is E, B, C, D, A.

Front

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

Back

The fault is younger than the rocks it cuts through.

Front

What is the oldest rock in this diagram? Options: B, H, I, R

Back

The oldest rock is I.

Front

What is relative dating?

Back

Relative dating is a method used to determine the order of past events without determining their exact age.

Front

What principle states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom?

Back

The principle of superposition.

Front

What is the significance of the law of original horizontality?

Back

It states that layers of sediment are originally deposited horizontally under the action of gravity.

Front

What does the term 'unconformity' refer to in geology?

Back

An unconformity is a surface that represents a gap in the geological record.

Front

What is the principle of faunal succession?

Back

It states that fossil organisms succeed one another in a definite and recognizable order.