Jack Simpson Plate Tectonics
Published on Dec 09, 2015
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PRESENTATION OUTLINE
PLATE TECTONICS
- IS THE THEORY THAT EARTH'S OUTTER SHELL IS DIVIDED INTO SEVERAL PLATES that glide over the mantle
CONVECTION CURRENTS
A CURRENT IN A FLUID THAT RESULTS FROM CONVECTION.
SLAB PULL
SLAB PULL IS THE PORTION OF MOTION OF A TECTONIC PLATE THAT CAN BE ACCOUNTED FOR BY ITS SUBDUCTION
RIDGE PUSH
RIDGE PUSH OR SLIDING PLATE FORCE IS A PROPOSED MECHANISM FOR PLATE MOTION IN PLATE TECTONICS. BECAUSE MID-OCEAN RIDGES LIE AT A HIGHER ELEVATION THAN THE REST OF THE OCEAN FLOOR, GRAVITY CAUSES THE RIDGE TO PUSH ON THE LITHOSPHERE THAT LIES FARTHER FROM THE RIDGE.
DIVERGENT PLATE BOUNDRY
IN PLATE TECTONICS, A DIVERGENT BOUNDARY OR DIVERGENT PLATE BOUNDARY (ALSO KNOWN AS A CONSTRUCTIVE BOUNDARY OR AN EXTENSIONAL BOUNDARY) IS A LINEAR FEATURE THAT EXISTS BETWEEN TWO TECTONIC PLATES THAT ARE MOVING AWAY FROM EACH OTHER.
LAND FORM FROM DIVERGENT BOUNDRY
BRIDGE ACROSS THE ÁLFAGJÁ RIFT VALLEY IN SOUTHWEST ICELAND, THAT IS PART OF THE BOUNDARY BETWEEN THE EURASIAN AND NORTH AMERICAN CONTINENTAL TECTONIC PLATES.
MID ATLANTIC RIDGE
FORMED BY DIVERGENT PLAT BOUNDRY IN THE SEA
Convergent pate boundry.
In plate tectonics, a convergent boundary, also known as a destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
OCEAN VS CONTINENT
VOLCANOS FOURM
OCEAN VS OCEAN
RESULTING LANDFORM OCEANIC TRENCH
SUBDUCTION ZONE
IS THE BIGGEST SMASH-UP ON EARTH, MARKING THE COLLISION BETWEEN TWO OF THE PLANET'S TECTONIC PLATES, THE PIECES OF CRUST THAT SLOWLY MOVE ACROSS THE SURFACE OVER MILLIONS OF YEARS.
DEEP OCEAN TRENCH
THE OCEANIC TRENCHES ARE HEMISPHERIC-SCALE LONG BUT NARROW TOPOGRAPHIC DEPRESSIONS OF THE SEA FLOOR. THEY ARE ALSO THE DEEPEST PARTS OF THE OCEAN FLOOR. OCEANIC TRENCHES ARE A DISTI
Deep ocean trench example
TRANSFOURM PLATE BOUNDRY
A TRANSFORM FAULT OR TRANSFORM BOUNDARY, ALSO KNOWN AS CONSERVATIVE PLATE BOUNDARY SINCE THESE FAULTS NEITHER CREATE NOR DESTROY LITHOSPHERE, IS A TYPE OF FAULT WHOSE RELATIVE MOTION IS PREDOMINANTLY HORIZONTAL IN EITHER SINISTRAL OR DEXTRAL DIRECTION.
TRANSFOURM RESAULTING EVENT
LARGE AMOUNTS OF ENERGY BUILD UP THEN THE ENERGY RELEASES TO FOURM EARTHQUAKES
TRANSFOURM BOUNDRY EXAMPLE
AN EXAMPLE OF THIS IS THE PATE BOUNDRY THAT RUNS THROUGH CALIFORNIA THE SAN ANDRES FAULT
