Geology - Boundaries & Waves

Divergent Boundaries

Spreading

onstructive effects (forming new crust)

continental crust rifts and oceanic crust ridges

sea floor spreading

causes volcanic activity.

Convergent Boundaries

Subduction (pushing towards each other)

destructive effect (recycle crust)

causes trenches & mountain ranges

causes volcanic activity.

Transform Boundaries

Passing each other (lateral sliding)

conservative effect

Causes earthquakes

doesn’t cause volcanic activity.

S Waves

P Waves

L Waves

R Waves