Across
- 2. the process that takes place at convergent boundaries by which one tectonic plate moves under another tectonic plate and sinks into the mantle as the plates converge.
- 4. process that occurs at mid-ocean ridges
- 5. sliding plate force is a proposed mechanism for plate motion in plate tectonics.
- 8. the theory that Earth's outer shell is divided into several plates that glide over the mantle.
- 9. a type of fault whose relative motion is predominantly horizontal in either sinistral or dextral direction.
- 11. a linear feature that exists between two tectonic plates that are moving away from each other.
- 12. a supercontinent that existed during the late Paleozoic and early Mesozoic eras.
- 13. an imaginary line or a line on a chart connecting points
- 14. an instrument used to detect the presence of a metallic object or to measure the intensity of a magnetic field.
Down
- 1. a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.
- 2. the portion of motion of a tectonic plate that can be accounted for by its subduction.
- 3. an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
- 6. a linear-shaped lowland between several highlands or mountain ranges created by the action of a geologic rift or fault
- 7. the movement of the Earth's continents
- 10. the study of the record of the Earth's magnetic field in rocks, sediment, or archeological materials