Plate Tectonics
Published on Nov 25, 2015
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PRESENTATION OUTLINE
PLATE TECTONICS
THE THEORY THAT PIECES OF THE EARTHS LITHOSPHERE ARE IN CONSTANT MOTION
CONVECTION CURRENTS
THE TRANSFER OF HEAT THROUGH A FLUID
SLAB PULL
PLATES ARE SUBDUCTED BECAUSE OF THE PULL OF GRAVITY
RIDGE PUSH
NEW CRUST FORMS FROM MAGMA WHICH PUSHES OLDER CRUST AWAY
DIVERGENT PLATE BOUNDARY
A CONSTRUCTIVE PLATE BOUNDARY WHERE PLATES ARE MOVING APART
RIFT VALLEY
RIFT VALLEY IS A LAND FORM CAUSED BY DIVERGENT BOUNDARIES THE EAST ASIA RIFT VALLEY IS AN EXAMPLE
MID OCEAN RIDGE
THE UNDERWATER LANDFORM RESULTED BY DIVERGENT PLATE BOUNDARIES. AN EXAMPLE IS THE MID ATLANTIC RIDGE
CONVERGENT PLATE BOUNDARY
WHERE TWO PLATES COLLIDE AND DENSITY DETERMINES THE OUTCOME OF THE COLLISION
VOLCANIC ARC AND TRENCH
Convergent Continental vs. Oceanic result. An example are the South Aegean Volcano Arc and the Eastern Mediterranean Trench
ISLAND ARC AND TRENCH
Convergent ocean vs. ocean plate result. The picture is the Tonga Islands and Tonga Trench.
MOUNTAIN RANGE
The result of convergent Continental vs. Continental plates. The picture are the Andes Mountain Range
Photo by blmiers2
SUBDUCTION ZONE
THE PROCESS IN WHICH A DENSER PLATE SINKS BENEATH A LESS DENSE PLATE
DEEP OCEAN TRENCH
A LONG DEEP DEPRESSION THAT FORMS DUE TO SUBDUCTION
TRENCH
THE PUERTO RICO TRENCH IS AN EXAMPLE
TRANSFORM BOUNDARY
WHERE TWO PLATES SLIDE PAST EACH OTHER
FAULT
THE RESULT OF A TRANSFORM BOUNDARY
