Earth Structure and Dynamics

1. The process by which new seafloor is created at mid-ocean ridges
4. The supercontinent tnat began to break apart about 200 million years ago
6. The life cycle of an ocean has been named after him
7. The study of prehistoric Earth's magnetic fields recorded in rocks, sediment, or archeological materials
11. The Earth's core is supposed to be made of iron and ....
13. Geologist use them to investigate the Earth's interior
14. The point on the Earth's surface directly above a focus
15. The deepest parts of the oceans
16. One of these created the Hawaiian Islands
18. Mountains that were uplifted after the collision of the Indian tectonic plate with the Eurasian plate
20. A large mountain range that runs along the center of many ceans

2. The mechanically weak region of the upper mantle of Earth
3. A fault where two tectonic plates slide past each other
5. The movement of molten rock in the mantle that drives plate tectonics
8. Geological process between converging tectonic plates
9. German scientist who originated the theory of continental drift
10. Their distribution across the continents was an evidence of the continental drift theory
12. the outer layer of the Earth
17. The most abundant element in Earth's crust
19. The boundary between the crust and the mantle of Earth