Relative Dating

Front

Used to determine whether an object is older or younger than other objects

Back

Relative Dating

Front

States that younger rocks lie above older rocks if the layers have not been disturbed

Back

Law of superposition

Front

A break in the geologic record that is made when rock layers are eroded over a long period of time

Back

Unconformity

Front

Traces or remains of organisms that lived long ago

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Fossil

Front

An ordered arrangement of rock layers that is based on the relative ages of the rocks

Back

Geologic Column

Front

What is the law of superposition?

Back

Sedimentary rock in its original position is older than layers above it.

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

Analyze the seashell found in the white layer. Which statement is true of the rock layer that contains this fossil?

Back

It is older than the layers above it.

Front

How do geologists use relative dating? Options: Placing rocks in order from youngest to oldest, Placing rocks in order by minerals they contain, Classifying rocks by different textures, Classifying rocks by different isotopes

Back

Placing rocks in order from youngest to oldest

Front

What are the relative ages of the features in order from oldest to youngest? Limestone, Basalt, Fault, Siltstone

Back

Limestone, Siltstone, Fault, Basalt