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Flashcards in plates and boundaries Deck (13)
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1
Q

fault

A

a crack or fracture in earth’s crust

2
Q

Himalayas

A

mountain range near India, Pakistan, China, Nepal and Bhutan formed by colliding plates

3
Q

island arcs

A

a chain of volcanic islands

4
Q

magma

A

melted crust, melted rock, gases, crystals and minerals

5
Q

mid-ocean ridge

A

a raised area of land under the ocean caused by diverging plates

6
Q

rift

A

a dropped zone or valley where plates are pulling apart

7
Q

seafloor spreading

A

a crack in the ocean floor, magma spreads, new ocean floor forms

8
Q

strike- slip fault

A

the motion of plates at a transform boundary

9
Q

subduction zone

A

ocean plate is forced below the continental plate

10
Q

trench

A

deep valley in the ocean near a continent

11
Q

tsunami

A

huge ocean waves caused by an ocean earthquake

12
Q

volcanic arc

A

a chain of volcanoes around a subduction zone

13
Q

volcano

A

a vent in the earth’s surface– magma and gases can erupt through it