Volcano Puzzle

4. A small area or region with a relatively hot temperature in comparison to its surroundings.
5. A tectonic belt of volcanoes and earthquakes
7. Lava rock fragments, hot vapor, and gas from this
8. Molten rock formed on the surface or breaking through it
12. The part of the Earth's crust that makes up the seafloor and is also younger then the continental crust
14. This type of volcano is considered a special class of mountain formed by oceanic and continental subduction
17. Boundary between two tectonic plates
18. Fine particles of mineral matter from a volcanic vent
19. An oceanic tectonic plate that lies beneath the Pacific Ocean
20. A release of the earths energy when it shakes violently

1. This part is below the lithosphere and consists of the lower mantle and core
2. This type of rock is made from cooled lava and examples of one of the rocks is obsidians
3. The relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust.
6. a dense, destructive mass of very hot ash, lava fragments, and gases ejected explosively from a volcano and typically flowing downslope at great speed.
9. This type of volcano is made by oceanic and oceanic subduction
10. This boundary moves closer, one sinks below and one slides above the other
11. This part is below the asthenosphere and consists of the upper mantle and crust
13. The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
15. Molten rock underground
16. This is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material