Plate Tectonics & Evidences
Across
- 3. a broad region of variable character that may be compressed or extended.
- 7. reversals are recorded in ocean floor rocks as the sea floor spreads apart
- 8. agglomerate, tuff, and ignimbrite formed by the accumulation at the earth's surface of dust and fragments ejected by explosive volcanic eruptions
- 10. It lines up parallel to the Earth’s present magnetic field.
Down
- 1. persistent periods of activity ranging from effusive lava flows to explosive eruptions with variable intensity
- 2. also called a conservative boundary.
- 4. ridge traps sedimentary deposits and is underlain by faulted and highly deformed sedimentary and metamorphic rocks.
- 5. A tool used for recording symmetrical magnetic field across ridge
- 6. lava flows formed by magma erupting from volcanoes at the earth's surface.
- 9. an example of a zone of mountains that rose when India collided with the Eurasian continent.