One
The San Andreas Fault is an example of what type of boundary?
Transform Boundary
When two plates grind past each other it is a _____ boundary.
Transform
What type of plate boundary formed the Great Rift Valley?
Divergent Plate Boundary
Trenches and Volcanoes occur at which boundary?
Convergent
As tectonic plates pull away from each other at a divergent boundary, what landform is created?
rift valley, ridge, ocean basin
When two Continental plates converge, what landform is created?
Mountains
At what plate boundary is there no volcanic activity?
Transform
Ocean ridges and rift valleys occur at which type of boundary?
Divergent
Boundaries around the Pacific plate form a string of volcanoes called the _______________.
Ring of Fire
Hot spot volcanoes do not grow to be very large because...
he hotspot stays in one place, but the tectonic plate keeps moving.
What type of crust must be involved for subduction to take place?
Oceanic Crust
Which layer of sedimentary rock is the oldest according to superposition?
the bottom layer
When is a volcano considered to be a supervolcano?
has VEI of 8 or higher, such as Yellowstone
In order for volcanoes to become active this has to happen?
magma must reach the surface
At what type(s) of plate boundary do earthquakes occur?
All 3 - Transform, Convergent, Divergent
When two oceanic plates converge, what is formed?
deep trench, volcanic islands
Which tectonic plate boundary will create mountains?
convergent plate boundary
There is will be volcanic activity at a convergent boundary if what happens?
subduction; one plate pushing under another and melting
When two oceanic plates diverge, what geological feature occurs?
a mid ocean ridge
When two tectonic plates diverge, the rift valley will eventually become...
ocean basin
When an oceanic plate collides with a continental plate, the oceanic plate...
subducts
In seafloor spreading, do you find the oldest crust closest to the ridge or farthest from it?
Farthest
The place where two plates collide is a...
convergent boundary
What do we call the massive underwater mountains that run down the middle of the Atlantic ocean?
The Mid-Atlantic Ridge
What type of boundary causes a ridge or rift (seafloor spreading)?
Divergent Plate Boundary