PRESENTATION OUTLINE
Plate Tectonics
THE THEORY THAT EARTH'S OUTER SHELL IS DIVIDED INTO SEVERAL PLATES.
Cause of movement 1:
Convection Currents
THE TRANSFER OF HEAT BY THE MASS MOVEMENT OF HEATED PARTICLES INTO AN AREA OF COOLER TEMPERATURE.
Cause of movement 2:
Subduction
THE PROCESS IN WHICH EARTH'S CRUST COLLIDES RESULTING IN ONE PLATE IS DRAWN INTO THE EARTHS MANTLE
Cause of movement 3:
Ridge push
A proposed mechanism for plate motion in plate tectonics.
Divergent Plate boundary
A tectonic boundary where two plates are moving away from each other and new crust is forming from magma that rises to the Earth's surface between the two plates.
Ocean Landform Resulting from Divergent Plate boundary
Mid ocean ridge
example: The mid Atlantic Ridge
Landform resulting from Divergent plate boundary on land
Volcano
Convergent plate Boundary
An actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
Resulting landform from ocean vs continent
Deep ocean trench
Example:Sunda Trench
Resulting landform from ocean vs ocean
Island arcs
Example: Mariana islands
Resulting landform from continent vs continent
Mountain ranges
Example: Himalayas
Subduction zone
THE PROCESS IN WHICH EARTH'S CRUST COLLIDES RESULTING IN ONE PLATE IS DRAWN INTO THE EARTHS MANTLE
Deep ocean trench
a long narrow steep-sided depression in the earth's oceanic crust, usually lying above a subduction zone
An example of deep ocean trench is:
Mariana Trench
Transform plate Boundary
a strike-slip fault that offsets a mid-ocean ridge in opposing directions on either side of an axis of seafloor spreading.
Resulting event from transform boundary :
A transform fault
An example of transform boundary is:
North Anatolian fault
