Chapter 1 Section 1 Geo Words

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Across
  1. 5. an elevation of the seafloor, 1000 m or higher, either flattopped or peaked
  2. 6. a fixed source of abundant rising magma that forms a volcanic center that has persisted for tens of millions of years
  3. 8. a sudden motion or shaking in Earth, caused by the abrupt release of slowly accumulated strain
  4. 9. fluid rock that comes out of a volcano
  5. 11. a rigid, thin segment of the crust and part of the upper mantle
  6. 12. the point on Earth’s surface directly above the focus of an earthquake
  7. 13. Earth’s crust and the uppermost part of the mantle
  8. 15. a general term for all elastic waves in Earth produced by earthquakes or generated artificially by explosions
Down
  1. 1. a continuous mountain range extending through the North and South Atlantic Oceans, the Indian Ocean, and the South Pacific Ocean
  2. 2. the deep central cleft in the crest of the midocean ridge
  3. 3. a scientist who studies the materials, processes and history of Earth
  4. 4. a vent in the surface of Earth through which magma and associated gases and ash erupt
  5. 7. a theory in which the lithosphere is divided into a number of plates that move relative to one another
  6. 10. the point of an earthquake within Earth where rupture first occurs to cause an earthquake
  7. 14. naturally occurring molten rock material generated within Earth