Eruption Crunch Crossword

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Across
  1. 2. a dense, destructive mass of very hot ash, lava fragments, and gases ejected explosively from a volcano and typically flowing downslope at great speed.
  2. 4. a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes
  3. 5. an oceanic tectonic plate that lies beneath the Pacific Ocean.
  4. 7. The location where two plates meet.
  5. 12. a large volcano that has erupted on the seafloor and has emerged above sea level, occurring in ocean basins or on ocean ridges
  6. 13. formed when hot, molten rock crystallizes and solidifies
  7. 15. 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.
  8. 16. the rigid outer part of the earth, consisting of the crust and upper mantle.
  9. 18. a tectonic plate boundary where two tectonic plates are moving towards each other
  10. 19. hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
  11. 20. the powdery residue left after the burning of a substance
Down
  1. 1. the thin, dense layer of the Earth's crust that forms the seafloor, primarily composed of basaltic rocks.
  2. 3. the layer of granite which form the continents and the areas of shallow seabed close to their shores.
  3. 6. a mountain formed by the accumulation of lava, ash, and other volcanic materials erupted from a vent in the Earth's crust
  4. 8. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
  5. 9. a mountain or hill, typically conical, 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.
  6. 10. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
  7. 11. a small area or region with a relatively hot temperature in comparison to its surroundings.
  8. 14. hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.
  9. 17. a destructive mudflow on the slopes of a volcano.