Vocab
Across
- 5. A theory explaining the structure of the Earth's crust and associated phenomena as resulting from interaction of rigid lithospheric plates which move slowly over the underlying mantle
- 8. the relatively thin part of the Earth's crust that underlies the oceanic basins
- 9. a main part of the world's land
- 11. a small area or region with a relatively hot temperature in comparison to its surroundings
- 15. A line of mountains connected by high ground
- 16. a tectonic boundary where two plates are moving away from each other and forming magma that rises to the Earth's surface
- 17. a tectonic boundary where two plates are moving toward each other
- 18. A mountain or hill filled with magma, lave, hot rock fragments, hot vapor, and gas that's being erupted from the Earth's crust
- 19. a long narrow ditch
- 20. 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
- 21. an extended break in a body of rock
Down
- 1. the sideways and downward movement of the edge of a plate of the Earth's crust into the mantle beneath another plate
- 2. an elastic wave in the Earth produced by an earthquake or others means
- 3. a super continent that existed during the late Paleozoic and early Mesozoic eras
- 4. a straight line or narrow section through an object or natural feature or across the Earth's surface, along which observations are made or measurements taken
- 6. the point on the Earth's surface vertically above the focus of an earthquake
- 7. a sudden and violent shaking of the ground
- 10. when tectonic plates slide past each other horizontally along strike-slip faults or transform faults
- 12. the thick part of the Earth's crust that forms the large landmasses
- 13. a divergent boundary in a linear feature that exists between two tectonic plates that are moving away from each other
- 14. the rigid outer part of the Earth, consisting of the crust and upper mantle