techtonic plates

1. valley- another name for the deep crack that splits fault-block mid-ocean ridge mountains
3. the process in which crust pushes downward into the mantle at a faultline
7. a multi-word term used to describe the movement of oceanic crust as a divergent boundary.
9. a german scientist who was the first person to build a scientific case to support the Theory of Continental Drift
12. currents- circulatory patterns of heat in the magma believed to be the riving force behind plate movement
13. a large segment of earth crust that slowly moves
15. the branch of geology that deals with the movement that shapes the earth's crust

2. a type of fault where the crust moves sideways past each other
4. a type of plate boundary where the plates slowly move apart from each other
5. the preserved remains of ancient, once-living organisms
6. ocean ridges- ocean bottom mountain ranges split down the middle by a deep crack
8. v-shaped valleys that are the deepest parts of the oceans where subduction occurs
10. a giant prehistoric landmass where all seven modern continents fused together
11. the uppermost solid part of Earth's crust
14. a type of plate boundary where the plates slowly collide into each other