Plate Tectonics
Across
- 1. Primary, longitudinal, irrotational, push, pressure, dilatational, compressional, or push-pull wave (Plate Tectonic Dictionary, n.d.).
- 2. An instrument that records the motions of the Earth, especially earthquakes (Plate Tectonic Dictionary, n.d.).
- 3. A scientist who studies earthquakes (Plate Tectonic Dictionary, n.d.).
- 8. Shaking of the Earth caused by a sudden movement of rock beneath its surface (Plate Tectonic Dictionary, n.d.).
- 9. Molten rock containing liquids, crystals, and dissolved gases that forms within the upper part of the Earth's mantle and crust (Plate Tectonic Dictionary, n.d.).
- 11. A written record of an earthquake, recorded by a seismograph (Plate Tectonic Dictionary, n.d.).
- 12. The circular depression containing a volcanic vent (Plate Tectonic Dictionary, n.d.).
- 14. The theory, first advanced by Alfred Wegener, that Earth's continents were originally one land mass (Plate Tectonic Dictionary, n.d.).
- 15. A weak point in the Earth's crust and upper mantle where the rock layers have ruptured and slipped (Plate Tectonic Dictionary, n.d.).
- 16. One of the huge moving sections which make up the Earth's crust (Plate Tectonic Dictionary, n.d.).
- 18. A steep-sided volcano formed by the explosive eruption of cinders that form around a vent (Plate Tectonic Dictionary, n.d.).
Down
- 1. The place where two or more plates in the Earth's crust meet (Plate Tectonic Dictionary, n.d.).
- 4. That point on the Earth's surface directly above the hypocenter of an earthquake (Plate Tectonic Dictionary, n.d.).
- 5. The process in which one lithospheric plate collides with and is forced down under another plate and drawn back into the Earth's mantle (Plate Tectonic Dictionary, n.d.).
- 6. The theory that the Earth's crust and upper mantle (the lithosphere) is broken into a number of more or less rigid, but constantly moving, segments or plates (Plate Tectonic Dictionary, n.d.).
- 7. Of or having to do with earthquakes (Plate Tectonic Dictionary, n.d.).
- 10. The thin outer layer of the Earth's surface, averaging about 10 kilometers thick under the oceans and up to about 50 kilometers thick on the continents (Plate Tectonic Dictionary, n.d.).
- 11. Shear, secondary, rotational, tangential, equivoluminal, distortional, transverse, or shake wave (Plate Tectonic Dictionary, n.d.).
- 13. The layer of rock that lies between the crust and the outer core of the Earth (Plate Tectonic Dictionary, n.d.).
- 17. The term used for magma once it has erupted onto the Earth's surface (Plate Tectonic Dictionary, n.d.).