Unit 5 and 6 Vocab

2. a line on a diagram or map connecting points relating to the same time or equal times.
4. the equilibrium that exists between parts of the earth's crust
7. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
10. a flat plate with multiple "wells" used as small test tubes
12. a geological feature where two or more lithospheric plates move towards each other and collide
13. a linear shaped lowland between several highlands or mountain ranges produced by the action of a geologic rift
15. a process in which a section of the earth's crust is folded and deformed by lateral compression to form a mountain range.
16. a large volcanic crater, especially one formed by a major eruption leading to the collapse of the mouth of the volcano.

1. formed by the movement of large crustal blocks along faults formed when tensional forces pull apart the crust
3. a cone formed around a volcanic vent by fragments of lava thrown out during eruptions.
5. the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other
6. large volcanic eruptions that cover extensive areas of land or ocean floor with basalt lava flows
8. a body of intrusive igneous rock.
9. the pulling force exerted by a cold, dense oceanic plate plunging into the mantle due to its own weight
11. a type of plate tectonic boundary where two tectonic plates slide horizontally past each other.
14. a geological phenomenon where the Earth's magnetic north and south poles switch positions