Across
- 5. / A break in the continuity of a body of rock or of a vein, with dislocation along the plane of the fracture.
- 7. / A long, narrow mountain range on the ocean floor formed by magma at divergent plat boundaries.
- 8. / Parallel forces acting in opposite directions at a transform boundary.
- 9. / The downward vertical motion of earth’s surface.
- 10. / Natural remnant magnetism which is nearly identical to the present ambient field.
- 11. / The transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
- 14. / A level or almost level tract of country, an extensive treeless region.
- 16. / A hypothesis that suggests the continents are in constant motion on the earth’s surface.
- 19. / The equilibrium between continental crust and the denser mantle below it; a condition in which the forces tending to elevate balance those tending to depress.
- 20. / The process that moves large bodies of earth materials to higher elevation.
- 21. / A point, directly above the true center of disturbance, from which the shock waves of an earthquake apparently radiate.
Down
- 1. / A process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates, or ridges, and spreads out.
- 2. / A change in the shape of a rock caused by stress.
- 3. / A land area having a relatively level surface considerably raised above adjoining land on at least one side, and often cut by deep canyons.
- 4. / The squeezing force at a convergent boundary.
- 6. / A hollow or depression in the earth's surface, wholly or partly surrounded by higher land
- 12. / A series of vibrations induced in the earth's crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating.
- 13. / The crust and upper mantle of the earth.
- 15. / The point of origin of an earthquake.
- 17. / Name given to a once thought of super continent.
- 18. / The pulling force at a divergent boundary.