Chapter 13

2. Are bounded on all sides of major faults
3. Ancient continental cores
7. Proposed theory by Wegener
10. one of the three main types of heat transfer in liquid (magma)
12. Plates moving past each other.
13. Single giant continent.
16. Formed on a divergent plate boundary, a crustal extension, a spreading apart of the surface.
17. Two tectonic plates that are moving away from each other.
18. A bunch of Volcanoes and earthquake spots located along the plate boundary

1. A sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
4. Two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
5. The theory of plate movement.
6. About 100km thick. (ch.13 notes)
8. Places where two plates meet one another.
9. A major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.
11. A mountain or hill,having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
14. The amount of heat,heating the ocean floor.
15. A long narrow hilltop, mountain range, or watershed.