IPS COPY THE NOTES THAT ARE IN RED ON YOUR PAPER. COLLECTED TODAY for participation grade points

The action is at the edges! If you are lucky enough, or sometimes, unfortunate enough to live where two plates meet, you've probably had first-hand experience with moving plates! That’s because earthquakes, volcanoes, and tsunamis may occur at the boundaries between plates.

Earthquakes Can occur where plates converge, diverge or slide against each other (transform) Not JUST at transform boundaries

Divergent boundaries

new crust forms at divergent boundaries

most divergent boundaries are in the oceans.

two plates move away from each other, allowing magma from the mantle to rise up and solidify as new crust.

Convergent Several different ways that plates can come together, collide.

Oceanic – Oceanic O-O Continental – Continental C-C Oceanic – Continental O-C = subduction of ocean under continental

SUBDUCTION SUBDUCTION Oceanic - Continental WHERE PLATES MELT

SUBDUCTION SUBDUCTION Oceanic - Continental

SUBDUCTION SUBDUCTION Convergence a deep trench one plate is pulled beneath another (subduction), forming a deep trench.

SUBDUCTION SUBDUCTION Convergence The long, narrow zone where the two plates meet is called a subduction zone.

SUBDUCTION SUBDUCTION Convergence The long, narrow zone where the two plates meet is called a subduction zone.

Transform plate boundaries plates grind past each other San Andreas Fault : separates the North American plate from the Pacific plate responsible for many of California’s earthquakes.