A break in the Earth's crust
What is a Fault?
The edges of a plate; where 2 plates meet
What is a Plate Boundary?
the block of rock that forms the upper half of a fault; moves up or down
What is the hanging wall?
How many major plates is Earth's lithosphere broken into?
Earth's feature formed Continent - Continent Divergent Boundary
What is a rift valley?
A section of Earth's lithosphere that slowly moves over the asthenosphere carrying pieces of continental and oceanic crust
What is a plate?
A plate boundary where two plates move away from each other
What is a divergent boundary?
the block of rock that forms the lower half of a fault
What is the footwall?
The name of the plate that contains North America
What is the North American Plate?
Earth's feature formed at an Ocean - Ocean Divergent Boundary
What is a Mid-Ocean Ridge?
The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle
What is Subduction?
a type of boundary where blocks of rock slip past each other horizontally
What is a Transform Boundary?
A type of fault where the hanging wall slides downward; caused by tension in Earth's crust
What is a normal fault?
What is the African Plate?
Earth's feature formed at a Continent - Continent Convergent Boundary
What is a mountain?
A large wave produced by an earthquake on the ocean floor
What is a tsunami?
A type of boundary where 2 plates move towards each other
What is a convergent boundary?
A type of fault where rocks on either side move past each other sideways with little up or down motion
What is a strike-slip fault?
the name of the plate that contains both Europe and Asia
What is the Eurasian plate?
Earth's feature formed at a Ocean - Ocean Convergent Boundary; subduction occurs here
What is a trench?
The size or extent
At an oceanic divergent boundary; the largest mountain chain in the world
What is the Mid-Ocean Ridge?
A type of fault where the hanging wall slides upward; caused by compression in Earth's crust
What is a reverse fault?
The smallest of the major Earth's tectonic plates; found off the coast of South America
What is the Nazca plate?
Earth's feature "formed" at a Transform Boundary
What is an Earthquake?