Across
- 3. a slow movement of the continents on a deep-seated viscous zone within the earth
- 4. to change in composition or structure
- 6. formed by or from deposits of sediment
- 8. the process and dynamics of tectonic plate movement
- 9. the action or process in plate tectonics of the edge of one crustal plate descending below the edge of another
Down
- 1. moving or extending in different directions from a common
- 2. of a rock of relating to or produced by metamorphism
- 3. tending to move toward one point or to approach each other
- 5. the matter that settles to the bottom of a liquid
- 7. relating to, resulting from, or suggestive of the intrusion or extrusion of magma or volcanic activity