Sci 8 - Earth's Layers, Plates, Geologic History Review

Front

What layer of the Earth has convection currents?

Back

Asthenosphere

Front

Where does rock get recycled or 'trashed'?

Back

Oceanic Trenches

Front

What is a Divergent Boundary?

Back

A plate boundary where two tectonic plates move away from each other, such as the Rift Valley.

Front

What is an example of a Convergent Plate Boundary?

Back

Indian to Eurasian Plates (formation of Himalayas)

Front

What can be concluded about the top layer of rock in an undisturbed cliff wall?

Back

The top layer is younger than layers located farther down the cliff.

Front

What is the Earth's outermost layer called?

Back

Crust

Front

What is the layer beneath the Earth's crust?

Back

Mantle

Front

What is the significance of mid-ocean ridges?

Back

They are sites of new oceanic crust formation and divergent boundaries.

Front

What is the process of subduction?

Back

The process where one tectonic plate moves under another and is forced into the mantle.

Front

What type of boundary is the San Andreas Fault?

Back

Transform Boundary.