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Flashcards in tectonic plates Deck (14)
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1
Q

Asthenosphere

A

It’s the layer below the Lithosphere.

2
Q

Continental drift

A

That continents have moved horizontally to there current locations.

3
Q

Convection current

A

the rising, cooling, and sinking of matter.

4
Q

Convergent Boundary

A

when two plates collide

5
Q

Divergent Boundary

A

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

6
Q

Lithosphere

A

the crust and upper mantle.

7
Q

Pangaea

A

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

8
Q

Plate Tectonics

A

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

9
Q

Sea floor spreading

A

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

10
Q

Subduction Zone

A

Area where ocean plate descends into the upper mantle.

11
Q

Transform Fault

A

strike slip fault ( plates slide past each other)

12
Q

How does a convection current work?

A

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

13
Q

How are mid ocean ridges formed?

A

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

14
Q

Describe evidence that shows continental drift

A

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