Plate Boundaries Flashcards
1
Q
Divergence
A
Mid ocean ridges
Shield volcanoes
Rifts
2
Q
Convection currents
A
Hotter things rise
Cooler things sink
Makes a full circle around
3
Q
Converging collision
A
Equal density crust
Folding/faulting
Himalayas, Rockies, alps
4
Q
Subduction: ocean-continent
A
Oceanic crust goes down
Composite volcanoes
Deep focus (300-700km)
Japan, cascades, pacific
5
Q
Subduction: ocean vs ocean
A
Island arcs
Equal density
Tsunamis
Philippines, Tonga islands
6
Q
Transform plate boundaries: strike slip
A
Earthquakes (Shallow focus)
San Andreas fault
Mid Atlantic ridge
7
Q
Hotspot
A
Super heated area of mantle.
Continuous eruptions
Shield volcanoes
