Across
- 2. proposed mechanism for plate motion in plate tectonics.
- 4. Places where plates slide past each other
- 7. 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
- 8. a linear feature that exists between two tectonic plates that are moving away from each other.
- 11. Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core
- 14. measure the magnetization of a magnetic material like a ferromagnet, or to measure the strength and, in some cases, the direction of the magnetic field at a point in space.
- 15. the study of magnetic record on rocks
Down
- 1. process that occurs at mid-ocean ridges
- 3. an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
- 5. a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems
- 6. the portion of motion of a tectonic plate that can be accounted for by its seduction
- 9. a line on a diagram or map connecting points relating to the same time or equal times
- 10. a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged
- 12. 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
- 13. the movement of the Earths continents relative to each other, thus appearing to drift