plate tectonics,mountains,volcanoes and earthquakes
Across
- 3. the result of a distorting process
- 4. formed by blocks of rock uplifted from normal faults
- 5. two or more of Earth's tectonic plates are pushed together
- 6. the magnetism in rocks that was induced by the earth's magnetic field
- 8. change in shape and size of elastic, plastic, and fluid materials
- 11. sliding plate force is a proposed driving force for plate motion in plate tectonics
- 13. periodic aggregation and dispersal of Earth's continental crust
- 14. assembled from earlier continental units approximately 335 million years ago
- 15. a record produced by a seismograph
- 16. fault known to produce significant earthquakes that has not slipped in an unusually long time
- 18. another name for a cloud of ash, lava
- 21. an area on Earth where two or more lithospheric plates collide
- 25. movement of the mantle as it transfers heat from the white-hot core to the brittle lithosphere
- 26. the great size or extent of something
- 28. a fault-bounded area or region with a distinctive stratigraphy, structure, and geological history
- 29. elastic wave generated by an impulse such as an earthquake or explosions
- 32. a fracture or zone of fractures between two blocks of rock
- 34. a sudden and violent shaking of the ground, sometimes causing great destruction
- 35. an underwater mountain range, formed by plate tectonics
- 37. the equilibrium that exists between parts of the earth's crust
- 39. area on Earth over a mantle plume or an area under the rocky outer layer of Earth
- 42. seismic seismic wave that is trapped near the surface of the earth
- 43. activity or phenomena.
- 44. represents the electrical depolarization of the atria of the heart
- 45. an instrument that measures and records details of earthquakes
- 46. return of elastically deformed rock to its original shape
- 47. places where plates slide sideways past each other
- 49. the formation of new areas of oceanic crust
Down
- 1. large volcanic crater, especially one formed by a major eruption
- 2. the shallow water area found in proximity to continents
- 4. fracture or zone of fractures between two blocks of rock
- 7. a long high sea wave caused by an earthquake, submarine landslide
- 9. the point on the earth's surface vertically above the focus of an earthquake.
- 10. the measurable amount of a property, such as force, brightness, or a magnetic field.
- 12. the sideways and downward movement of the edge of a plate of the earth's crust
- 16. force exerted by a cold, dense oceanic plate plunging into the mantle due to its own weight
- 17. sedimentary rocks warped upward to form a roughly circular shape
- 19. the gradual movement of the continents across the earth's surface
- 20. hot fluid material below the earth's crust from which lava and other igneous rock is formed on cooling
- 22. force per unit area within materials that arises from externally applied forces
- 23. hot molten rock erupted from a volcano, or solid rock resulting from cooling of this.
- 24. a rupture in the crust of a planetary-mass object, such as Earth
- 27. a soft, light permanent wave designed to give the hair fullness
- 30. area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves
- 31. earth movement resulting from the horizontal compression of rock layers by internal forces
- 33. the center of interest or activity.
- 36. a theory explaining the structure of the earth's crust
- 38. shakes the ground back and forth perpendicular to the direction the wave is moving
- 40. occur along spreading centers where plates are moving apart and new crust is created
- 41. a line of mountains connected by high ground
- 44. was the superocean that surrounded the supercontinent Pangaea
- 48. form fissures, cracks, or breaks, especially through large-scale faulting;