1. PLATE BOUNDARY INTERACTIONS
separating
coming together
sliding past one another
PLATE BOUNDARY INTERACTIONS

2. CONVERGENT BOUNDARIES
creates mountains as plates fold and crumple
Continent–to-Continent
metamorphic
CONVERGENT BOUNDARIES

3. Alps
Folding

4. Himalayas
Alps

5. CONVERGENT BOUNDARIES
Oceanic plates dive beneath continental in subduction
Continent–to-Oceanic
Andesitic magma from mixing of oceanic/continental plates
trench
subduction
CONVERGENT BOUNDARIES

6. Trenches Peru-Chile trench Aleutian trench Pacific ocean South America
Alaska
Pacific ocean
Peru-Chile trench
Aleutian trench

7. Mt Lassen
Volcanoes
andesitic magma
The Cascades