PRESENTATION OUTLINE
Plate Tectonics
. Pieces of the earths lithosphere are in constant motion.
Convection Currents
. Convection currents in the mantle
. a current in a fluid that results from convection
Gravity(slab pull)
. The pulling on the plates in the subduction zone
. It's the force that attracts the body towards the center of the earth
Sea-floor Spreading(ridge push)
. New crust forming pushes the plates apart
. The formation of new crust in oceanic areas
Divergent Plate Boundary
. a linear feature that exists between two tectonic plates that are moving away from each other.
Resulting landform from divergent plate boundary
Rift Valley- land form resulting from divergent plate boundary
mid ocean ridge- land resulting from divergent plate boundary
Convergent Plate Boundary
a actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
Results from convergent boundary
. The Andes mountains- land form resulting from a convergent plate boundary(ocean vs continent)
. Aleutian Islands- land form resulting from convergent plate boundary(ocean vs ocean)
. Himalaya Mountains- land form resulting from convergent play boundary(continent vs continent)
Subduction Zone
When two tectonic plates meet, one may slide underneath the other, curving down into the mantle.
Deep Ocean Trench
Oceanic trenches are a distinctive morphological feature of convergent plate boundaries.
Marianas Trench
Transform Plate Boundary
Two plates slide alongside each other.
Resulting event from transform boundary
A result would be the San Andrés fault.
San Andrés fault- land form resulting from transform boundary.
