Earth history Inv. 3

Front

What does the Principle of Original Horizontality state?

Back

Sedimentary layers of rock are originally deposited in flat and horizontal layers.

Front

What is the best environment for the formation of shale?

Back

Swamp.

Front

What type of sedimentary rock is composed of clay or silt?

Back

Shale.

Front

Which rock layer is known to have formed first among the listed layers?

Back

Bright Angel Shale.

Front

What happens to new layers of sediment when they are added?

Back

They will be level with the water.

Front

What is the significance of sedimentary rock layers in understanding Earth's history?

Back

They provide insights into past environments and geological processes.

Front

What is the process called when sediment is compacted and cemented to form sedimentary rock?

Back

Lithification.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

How does the environment affect the type of sedimentary rock that forms?

Back

Different environments lead to different types of sediment deposition, influencing rock composition.

Front

What is the role of fossils in sedimentary rock layers?

Back

Fossils provide evidence of past life and can indicate the environment of deposition.