Tectonic Plates

The rigid upper layer of the Earth.

Lithosphere

A boundary between plates that are moving toward each other.

Convergent boundary

Due to its low density, continental _ is usually not subducted and mountains form in these locations.

crust

The Himalayan Mountains were formed by a collision between India and .

Eurasia

A layer of the upper mantle in which rocks can deform like plastic

Asthenosphere

sea-floor spreading

The process by which molten material adds new oceanic crust to the ocean floor

The mantle is thought to contain convection that help to move the plates.

currents

Ring of Fire

A major belt of volcanoes & earthquakes that rims the Pacific Ocean

Pangea

term for the super continent which contained all the plates together

The process by which crust is pushed down into the mantle below another plate.

subduction

Earthquakes often occur at this type of boundary.

transform

At what plate boundary would you find sea floor spreading?

divergent

What type of boundary is illustrated?

convergent

The process that powers plate tectonics is

Convection currents

Subduction

is the process by which denser oceanic lithosphere sinks back into the asthenosphere to melt and become magma

Transform boundary

the boundary between tectonic plates that are sliding past each other in opposite directions

At what plate boundary would you find mountains?

convergent

Mid-Ocean Ridge

a chain of mountain ranges (longest chain in the world) on the ocean floor where new oceanic crust forms

What do these plate boundaries form? DIVERGENT

MIDOCEAN RIDGE & SEA FLOOR SPREADING

Divergent Boundary

the boundary between two tectonic plates that are moving away from each other

What do these plate boundaries form? CONVERGENT - OCEAN VS. OCEAN

ISLANDS AND TRENCHES

What do these plate boundaries form? CONVERGENT - CONTINENTAL CRUST VS. CONTINENTAL CRUST

MOUNTAINS

Which plate boundary is it? Look at the image.

transform

Which plate boundary is it? Look at the image.

convergent

Which plate boundary is it? Look at the image.

divergent

Which plate boundary is it? Look at the image.

divergent

Which plate boundary is it? Look at the image.

convergent

Which plate boundary is it? Look at the image.

transform

A _ _ _ _ __ _ plate boundary is a location where two tectonic plates are moving toward each other

convergent

A ____ boundary occurs when two tectonic plates move away from each other.

divergent

The seafloor slowly grows outward from mid-ocean ridges as new crust is formed, pushing the continents along for the ride.

seafloor spreading

_ _ _ __ _ boundaries are places where plates slide sideways past each other.

transform

The theory describing how Earth’s plates move and what happens when they interact with each other.

plate tectonics

Crust

The thin and solid outermost layer of the Earth above the mantle

San Andreas Fault

A major geological fault in California formed by a sliding transform boundary.

oceanic crust

thinner, more dense, younger crust making ocean floor

trench

extremely deep areas in the ocean that are created by a subducting plate

hot spot

an area in the mantle that is super heated and melts through the crust (like a blow-torch)

At what plate boundary would you find rift valleys?

divergent

At what plate boundary would you find the Mid-Atlantic Ridge?

divergent

At what plate boundary would you find sea floor spreading?

divergent

At what plate boundary would you ONLY find earthquakes?

transform

What plate boundary does the picture show?

convergent

What plate boundary does the picture show?

convergent

convergent

What plate boundary does the picture show?

divergent

What plate boundary does the picture show?

What plate boundary does the picture show?

convergent

What plate boundary does COLLIDE describe?

convergent

divergent

What plate boundary does the picture show?

subduction

process in which two plates collide and the denser ocean plate descends below the other

What geologic feature can be found at letter D?

Trench

What plate boundary does SLIDE describe?

transform

mantle

The layer of hot, solid material between Earth's crust and core. The thickest layer.

Which will not occur at letter D?

Subduction Zone

Plastic-like layer below the lithosphere

Asthenosphere