PRESENTATION OUTLINE
PLATE TECTONICS
*The theory that pieces of Earth's lithosphere are in constant motion.
By: Grace Klingenberg
CONVECTION CURRENTS
*The flow that transfers heat through a fluid.
SLAB PULL
*The pull of gravity on a plate that is being subducted.
RIDGE PUSH
*New less dense crust forming at divergent plate boundaries pushes older crust out of that way as older, denser crust gets pulled away by gravity.
DIVERGENT PLATE BOUNDARY
*Plates move away from each other.
MID OCEAN RIDGE
* Land form that results from a divergent plate boundary. Example: Mid-Atlantic Ridge.
RIFT VALLEY
*A landform that can occur from a divergent plate boundary. An example of this would be the Great Rift Valley in East Africa.
CONVERGENT PLATE BOUNDARY
* Plates move toward each other.
TRENCH WITH VOLCANIC ARC
*a resulting landform of ocean vs continent convergent boundary. An example is the Chile Peru deep sea trench with Andes Mtns.
TRENCH WITH ISLAND ARC
* A resulting landform of oceanic vs oceanic convergent boundary. An example is the Mariana Trench aka Mariana Islands.
MOUNTAIN RANGE
* A resulting landform of continental vs continental convergent boundary. An example is the Himalayas.
SUBDUCTION ZONE
* The process in which one tectonic plates slides beneath another at a convergent boundary.
DEEP OCEAN TRENCH
* A deep valley along the ocean floor that forms due to subduction.
TRANSFORM PLATE BOUNDARY
* Two plates move past each other in opposite directions.
FAULT
* A resulting landform of a transform boundary. An example is the San Andreas Fault.
