1. CAUSE & EFFECT IN PLATE TECTONICS

2. What happens where? Margin TypeVolc.EQsF-T Mtns Trench PassiveNNNN DivergentYYNN TransformNYN?N C-C CollisionNYYN C-O CollisionYYYY O-O CollisionYYNY

3. Earthquakes happen wherever rocks move against or away from other rocks. This is typical of all plate boundaries. Mountains (fold-thrust type mountains) form wherever continental crust is involved in a collision Ocean trenches are formed by subduction.

4. Volcanoes happen only –at subduction zones –where plates spread apart, or –at hot spots (mantle plumes). Only in these locations do you have a consistent magma source.

5. Cross-Section Assignment Draw cross-sections (down to the asthenosphere) of the following margins: 1 2 3 5 1.Label plate names 2.Show and label any areas of mountain building and/or volcanism 3.Show and label where earthquakes would take place 4.Label subduction zones 5.Label the type(s) of plate boundaries 6.Label the speed and direction of plate motion 7.Label the crust types 4 Draw on blank, white paper. Use color.

6. Speed is in mm/yr