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Flashcards in tectonic plates Deck (14):
1

Asthenosphere

It's the layer below the Lithosphere.

2

Continental drift

That continents have moved horizontally to there current locations.

3

Convection current

the rising, cooling, and sinking of matter.

4

Convergent Boundary

when two plates collide

5

Divergent Boundary

Occur when two plates move apart. (can make rifts)

6

Lithosphere

the crust and upper mantle.

7

Pangaea

The mane Wegner gave to a large land mass made up of all continents.

8

Plate Tectonics

The theory Earth's crust and upper mantle (lithosphere)that moves around the mantle.

9

Sea floor spreading

Hot less dense material in the mantle is forced upwards to the surface at the mid-ocean ridge.

10

Subduction Zone

Area where ocean plate descends into the upper mantle.

11

Transform Fault

strike slip fault ( plates slide past each other)

12

How does a convection current work?

when it gets hot it rises, moves along horizontally, cools, sinks repeats.

13

How are mid ocean ridges formed?

It is when two are moving away from each other which is how ridges form.

14

Describe evidence that shows continental drift

Fossils, climate, Mountains are found in different areas. Technology helps.