Plate Tectonics
Published on Nov 26, 2015
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PRESENTATION OUTLINE
PLATE TECTONICS
THE LITHOSPHERE IS BROKEN INTO PIECES THAT ARE IN MOTION.
CAUSES OF PLATE MOVEMENT:
CONVECTION CURRENTS
THE FLOW THAT TEANSFORMS HEAT THROUGH A FLUID
SLAB PULL
THE PULL OF GRAVITY ON A PLATE THAT IS BEING SUBDUCTED
RIDGE PUSH
NEW CRUST FORMING AT DIVERGENT PLATE BOUNDARIES.
DIVERGENT PLATE BOUNDARY
A BOUNDARY WHERE PLATES ARE MOVING APART
EXAMPLES OF DIVERGENT BOUNDARY:
RIFT VALLEY
A LAND FORM THAT RESULTS FROM A DIVERGENT BOUNDARY
RIFT VALLEY EXAMPLE
THE AFRICAN RIFT VALLEY
MID OCEAN RIFT
UNDERWATER LANDFORM THAT IS CAUSED BY A DIVERGENT PLATE BOUNDARY
MID OCEAN RIDGE EXAMPLE
MID ATLANTIC RIDGE
CONVERGENT PLATE BOUNDARY
THE PLACE WHERE TWO PLATES CONVERGE
LANDFORM FROM OCEAN VS CONTINENT
MARIANA ISLANDS
LANDFORM FROM CONTINENT VS CONTINENT
THE ROCKY MOUNTAIN CHAIN
SUBDUCTION ZONE
EARTHS PLATES BEING DRAWN DOWN, OR OVERRIDDEN BY ANOTHER PLATE.
DEEP OCEAN TRENCH
A DEEP NARROW TROUGH IN THE OCEAN FLOOR
DEEP OCEAN TRENCH EXAMPLE
THE PERUVIAN TRENCH
TRANSFORM PLATE BOUNDARY
TWO PLATES SLIDING PAST ONE ANOTHER.
TRANSFORM PLATE BOUNDARY EXAMPLE
THE ALPINE FAULT OF NEW ZEALAND.
