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Plate Tectonics (Volcanoes (Hazards (Lahars, Lava bombs, Pyroclastic flows…
Plate Tectonics
Volcanoes
Stages
Extinct
Safe
Active
Dangerous
Dormant
Precautions should be taken
Anatomy
Chamber
Vent
Magma creator
Types
Shield volcanoes
Composite volcanoes
Magma
Creations
Volcanic mountains
Composite
Volcanic islands
Iceland and Hawaii
Tourism
Blue Lagoon
Divergent boundaries
Shield
Convergent boundaries
Mid Ocean ridge
Mid Atlantic ridge
Lava
Pacific ring of fire
Hazards
Lahars
Lava bombs
Pyroclastic flows
Volcanic ash
Lava flows
Fold mountains
Alpine
25-35 million years old
Andees
Alpes
Hymilayas
Caledonian
400,000,000 million years old
Armorican
200-250 million years old
Macgillycuddy reeks
Earthquakes
scales
Richer scale
1-10
seismograph
Mercali scale
1-12
Eye Observations
Shocks
Tremors
Aftershocks
Epicenter
Focus
The Earth
Structure
Mantle
Semi molten rock
4000°
Crust
Solid rock
10-60km thick
Core
Inner core
Outer core
High pressure
Solid rock
Iron
Nickel