Across
- 2. the hypothesis that new ocean crust is formed at mid-ocean ridges and destroyed at deep sea trenches; occurs in a continuous cycle of magma intrusion and spreading
- 4. cycle of processes that form all mountain ranges, resulting in broad, linear regions of deformation that you know as mountain ranges but in geology are known as orogenic belts
- 9. place where two tectonic plates slide horizontally past each other; characterized by long faults and shallow earthquakes
- 10. the change in elevation of Earth's crust
- 12. describes all the processes associated with the discharge of magma, hot water, and steam
- 13. fracture or system of fractures in Earth's crust that occur when stress is applied too quickly or stress is too great
Down
- 1. process by which one tectonic plate slips beneath another tectonic plate
- 3. places where two tectonic plates are moving apart; is associated with volcanism, earthquakes, and high heat flow, and is found primarily on the seafloor
- 5. Wegner's hypothesis that Earth's Continents were joined as a single landmass, called Pangaea, that split apart about 200 mya and slowly moved to their present position
- 6. huge pieces of Earth's crust that cover its surface and fit together at their edges
- 7. Ancient landmass made up of all the continents that began to break apart 200mya
- 8. place where two tectonic plates are moving toward each other; associated with trenches, island arcs, and folded mountains
- 11. unusually hot area in Earth's mantle where high temperature plumes of mantle material rise toward the surface