EARTH B FINAL EXAM California Geology and Tectonics

Front

Who proposed the Continental Drift Theory?

Back

Alfred Wegener

Front

What type of plate boundary movement causes mid-ocean ridges?

Back

Divergent

Front

What happened to Pangaea over tens of millions of years?

Back

It began to break apart.

Front

Compared to the relative age of the surface oceanic bedrock at location C, what is the relative age of the surface oceanic bedrock at D?

Back

Bedrock at C is older than D.

Front

What is a mid-ocean ridge?

Back

Mountains created under water.

Front

Define tectonic plates.

Back

Large sections of the Earth's lithosphere that move and interact with each other.

Front

What is the theory of plate tectonics?

Back

A scientific theory explaining the movement of the Earth's plates and the associated geological phenomena.

Front

What are convergent boundaries?

Back

Plate boundaries where two plates move toward each other, often causing one plate to be forced below the other.

Front

What geological features are formed at divergent boundaries?

Back

Mid-ocean ridges and rift valleys.

Front

What is subduction?

Back

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