Plate Tectonics 4.3 Flashcards Preview

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Flashcards in Plate Tectonics 4.3 Deck (7)
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Plate tectonics

The theory that explains how large pieces of the earths outermost layer, called tectonic plates, move and change shape

1

Convergent boundary

The boundary formed the collision of two lithospheric plates

2

Divergent boundary

The boundary between two tectonic plates that are moving away from each other

3

Transform boundary

The boundary between tectonic plates that are sliding past each other horizontally

4

Ridge push

When oceanic lithosphere in mid ocean ridges slides downhill into the asthenosphere due to the force of gravity

5

Convection

Hot rock from deep within the earth rises, but the cooler rock near he surface sinks. It causes lithosphere to move sideways and away.

6

Slab pull

The edge of the tectonic plate that contains oceanic lithosphere sinks and pulls the rest of the tectonic plate with it in the process slab pull