Geography- Plate Tectonics Flashcards Preview

Grade 9 November Exams > Geography- Plate Tectonics > Flashcards

Flashcards in Geography- Plate Tectonics Deck (10):
1

Theory of plate tectonics

States that the lithosphere is divided into a number of sections called plates. These plates are always in motion and the movement of one plate affects the movement of other plates.

2

Tectonic plates move

Because of convection currents in the mantle.

3

Convergent

Destructive
Earthquakes and volcanoes

4

SIAL->

Intercratonic folding (mountains)
Himalayas

5

SIAL ->

Subduction
Andes Mountains South America

6

Sima ->

Trench
Mariana's trench

7

Divergent

Constructive
Volcanoes

8

SIAL SIAL

Rift Valley
African Rift Valley

9

Sima sima

Ridge
Mid Atlantic Ridge

10

Transform or slip strike

Passive
Earthquakes
San Andreas Fault

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