Vocabulary for Plate Tectonics

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Across
  1. 2. , a theory explaining the structure of the earth's crust and many associated phenomena resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.
  2. 7. , an area on Earth where two or more lithospheric plates collide.
  3. 8. , A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle.
  4. 11. , long, narrow depressions on the seafloor.
  5. 13. , remnant, impression, or trace of an animal or plant of a past geologic age that has been preserved in Earth's crust.
  6. 14. ,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. 15. , Earth's outer layer
  8. 16. , is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.
Down
  1. 1. , was a theory that explained how continents shift position on Earth's surface.
  2. 3. , is a linear feature that exists between two tectonic plates that are moving away from each other.
  3. 4. , the place where two lithospheric plates come together, one riding over the other.
  4. 5. flowing fluid that is moving because there is a temperature or density difference within the material.
  5. 6. , the solid, outer part of the Earth.
  6. 9. , made up of magma and rock.
  7. 10. , a mountain that has lava
  8. 12. , an intense shaking of Earth's surface.