Copy of Plate Tectonics
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PRESENTATION OUTLINE
PLATE TECHTONICS
- Definition: PIECES OF THE LITHOSPHERE MOVE VERY SLOWLY DUE TO CONVECTION CURRENTS
Photo by WorldIslandInfo.com
CONVECTION CURRENTS
- Definition: CURRENTS THAT TRANSFER HEAT THROUGH A FLUID (IN THIS CASE CURRENTS IN THE MANTLE FLOWING TO THE PLATE TECTONICS)
Photo by JeepersMedia
SLAB PULL
- Definition: THE PULLING APART OF THE TECTONIC PLATES DUE TO GRAVITY
Untitled Slide
- Definition: THE PUSHING OF NEW CRUST AGAINST THE OLD CRUST DURING NEW CRUST FORMATION
DIVERGENT BOUNDARY
- Definition: A BOUNDARY ASSOCIATED WITH MID OCEAN RIGDES THAT SPREADS TWO PLATE BOUNDARIES AWAY FROM EACHOTHER
Untitled Slide
IN THE OCEAN,
DIVERGENT PLATE BOUNDARIES FORM THE MID OCEAN RIDGE.
CONVERGENT BOUNARY
- Definition: A PLATE BOUNDARY WHERE THE PLATE CRASH INTO EACHOTHER
WHEN OCEANIC AND CONTINENTAL CRUSTS CONVERGE,
WHEN TWO OCEANIC CRUSTS CONVERGE,
THEY FORM ISLAND ARCS SUCH AS THE ALEUTIAN ISLANDS.
WHEN TWO CONTINENTAL CRUSTS CONVERGE,
IT FORMS MOUNTAINS AND MOUNTAIN RANGES LIKE THE HIMALAYAS.
Photo by SamHawleywood
SUBDUCTION ZONE
- Definition: THE AREA WHERE OCEAN CRUST SINKS BACK INTO THE MANTLE AND BENEATH A DEEP OCEAN TRENCH
DEEP OCEAN TRENCH
- Definition: A DEEP VALLEY ALONG THE OCEAN FLOOR BENEATH WHERE THE PROCESS OF THE CRUST SINKING INTO THE MANTLE OCCURS
- THE MARIANA TRENCH IS AN EXAMPLE OF A DEEP OCEAN TRENCH
TRANSFORM BOUNDARY
- Definition: TWO TECTONIC PLATES THAT SLIDE PAST EACH OTHER
