Across
- 1. This kind of boundary results in a fault — a crack or fracture in the earth's crust that is associated with this movement. Faults and Earthquakes. Transform boundaries and the resulting faults produce many earthquakes because edges of tectonic plates are jagged rather than smooth.
- 4. boundaries In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other.
- 7. wave
- 10. boundaries A tectonic boundary where two plates are moving away from each other and new crust is forming from magma that rises to the Earth's surface between the two plates. ... See more at tectonic boundary. Compare convergent plate boundary.
- 11. fault A geologic fault in which the hanging wall has moved upward relative to the footwall. Reverse faults occur where two blocks of rock are forced together by compression. Compare normal fault. See Note and illustration at fault. The American Heritage® Science Dictionary.
- 12. noun. The definition of an S wave, or secondary wave, is a wave motion in a solid medium where the medium moves perpendicular to the direction of the travel of the wave. An example of an S wave is when pieces of rock in an earthquake vibrate at right angles to the direction of the seismic wave.
- 13. mapis a type of map characterized by large-scale detail and quantitative representation of relief, usually using contour lines, but historically using a variety of methods.
- 15. ridges a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading. An example is the Mid-Atlantic Ridge.
Down
- 2. boundaries Transform boundaries are places where plates slide sideways past each other. At transform boundaries lithosphere is neither created nor destroyed. Many transform boundaries are found on the sea floor, where they connect segments of diverging mid-ocean ridges. California's San Andreas fault is a transform boundary.
- 3. a record made by a seismograph
- 4. analysis analysis using the fact that physical quantities added to or equated with each other must be expressed in terms of the same fundamental quantities (such as mass, length, or time) for inferences to be made about the relations between them.
- 5. fault The normal force is the support force exerted upon an object that is in contact with another stable object. For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book.
- 6. currents the transfer of heat by the mass movement of heated particles into anarea of cooler fluid
- 8. core planetology) The hot liquid material found near the centre of some planets, distinct from the solid inner core.
- 9. mantle This is made up rock that is fluid and can move. It is this fluidity that powers the movement of the tectonic plates of the Earth's crust
- 14. wave a longitudinal earthquake wave that travels through the interior of the earth and is usually the first conspicuous wave to be recorded by a seismograph. Expand. Also called primary wave