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PRESENTATION OUTLINE

PLATE TECTONICS

PLATES OF THE CRUST THAT SLIDE ON THE EARTHS SURFACE
Photo by timlewisnm

CONVECTION CURRENT

LESS DENS LIQUID RISES AND MORE DENSE LIQUIDS SINK

SLAB PULL

TECTONIC PLATES ARE CONSTANTLY BEING PULLED BY THE MANTLE

RIDGE PUSH

GRAVITY PULLS THE LITHOSPHERE UNDER ANOTHE PLATE FOM GRAVITY

DIVERGENT PLATE BOUNDRY

PLATES MOVE AWAY FROM EACH OTHER FORMING NEW CRUST
Photo by wockerjabby

On land divergent plate boundaries form rift valleys surounded by two ridges

In the ocean, divergent plate boundaries form mid ocean ridges

CONVERGENT PLATE BOUNDARY

TWO PLATES COLLIDE FORMING A MOUNTAIN RIDGE

When ocean and continental crust coverage they form a mountain arc like the Andes mountains.

When ocean and continental crust converge they form a volcanic arc like the aleutian islands off the coast of Alaska.

When continental crust converges with continental crust converge it forms mountains like the Himalayan
Mountains

SUBDUCTION ZONE

THE AREA WHERE CRUST IS SUCKED UNDER CRUST

DEEP OCEAN TRENCH

A LANDFORM SEEN ON THE SURFACE FROM SUBDUCTION LIKE THE MARIANNA

TRANSFORM PLATE BOUNDARY

TWO PLATES SLIDE ALONG EACH OTHER

When plates move along transform boundaries, it causes earthquakes.

A good example of a transform boundary is the San Andreas fault