Devin Miller
Across
- 4. Changes in direction or orientation of the magnetic field of the Earth that have occurred from time to time
- 8. is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core.
- 11. or sliding plate force is a proposed mechanism for plate motion in plate tectonics.
- 12. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
- 13. was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It formed approximately 300 million years ago and then began to break apart after about 100 million years
- 15. also known as conservative plate boundary since these faults neither create nor destroy lithosphere, is a type of fault whose relative motion is predominantly
Down
- 1. is a linear-shaped lowland between several highlands or mountain ranges created by the action of a geologic rift or fault.
- 2. an instrument used for measuring magnetic forces, especially the earth's magnetism.
- 3. is the study of the record of the Earth's magnetic field in rocks, sediment.
- 5. is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
- 6. is a linear feature that exists between two tectonic plates that are moving away from each other.
- 7. a line on a diagram or map connecting points relating to the same time or equal times.
- 9. is an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
- 10. is the movement of the Earth's continents relative to each other, thus appearing to "drift" across the ocean bed
- 14. is the portion of motion of a tectonic plate that can be accounted for by its subduction