Raging Planet Flashcards
Periods of folding
Alpine,armorican,caledonia
What are the plates with land on top called
Continetal plate
Whats a plate with oceans on top
Oceanic plates
Whats the line were 2 plates meet
Boundary
The magma in the mantle is moved around in circular motion by
Convection currents
What are plates that collied also callsd
Destructive (or convergent) boundaries
Plates that slide past each other are
Passive boundaries
What do sliding plates cause
Earthquakes and fault lines
What is the crust broken into
Pieces called plates
The plates are constantly moving because of
Continental drift
How do volcanoes occur
magma occurs in the crust when 2 plates pull apart and magma spill through the gaps
The effects of volcanoes
Mid ocean ridges,volcanic islands,volcanic mountains
Whats the mid-Atlantic ridge
Underwater mountain range
Stages in a volcano
Active,dormant,extinct
Whats a active volvanoe
The volcano still erupts