Please enable JavaScript.

Coggle requires JavaScript to display documents.

SST - Coggle Diagram

- - - - 35km in the UK
    - - granite, silica and aluminum
    - - Basalt
  - - - Outer core
        
        2,220km
        
        Liquid
      - Inner core
        
        solid
        
        1,260km
  - - - 2,300km
    - - 600km
  - - - 6,000°C in the core
        
        but it's still solid
        
        melting point increases with pressure
- - - - Runny lava
        
        Basalt
      - Viscous lava
        
        Pumice
        
        Igneous rocks
        (depends on the rock that melted)
        
        thick and gassy
        
        explodes
        
        pyroclastic flow
        
        mudflow
        
        When a pyroclastic flow gets mixed with water
        
        When volcanic gas goes up cools and collapses
        
        Volcanic gas is mainly steam, carbon dioxide, sulphur dioxide and other gases
        
        1 more item...
        
        The most dangerous kind of lava
  - - - Underground where magma is stored
    - - The main opening where lava, ash, and gases are erupted
    - - The main pipe that extends from the magma chamber to the surface
    - - Smaller openings in a volcano, separate from the main vent
    - - The surface around the main opening of the volcano
    - - The upper part of the conduit
    - - The sides of the volcano
    - - The bottom of the volcano
    - - The pipes that lead to secondary vents
- - - - forms an underwater mountain range
        
        new lithosphere is being made
    - - Mid-Atlantic ridge
  - - - Subduction
      - land and ocean
        
        fold mountain
        
        land and land
        
        neither plate sinks, so they both push upwards
        
        e.g. Indo-Australian plate and Eurasian plate
        
        Himalayas
    - - Andes
  - - - earthquakes only
    - - The San Andreas Fault
- - - - the epicentre is directly above the focus
  - - - using a seismometer and seismograph
      - magnitude
    - - Is very unpredictable
- - - - 600,000 people within 8km
        
        3 million people within 30km
      - shoddy homes illegally
    - - Vesuvius erupted
        
        30km into the air
        
        lasted for 2 days
        
        was buried 5m below
        
        found in the 18th century
        
        now it's a tourist attraction
      - Roman city
    - - 1st 600,000 people closest
        
        by rail, road and boat
- - - - Plates
        
        scientist say gravity is the main thing that causes the plates to move
        
        Tectonic shift
        
        convection currents
        
        slab pull and ridge push
      - happen at different plate margins/boundaries
        
        they tend to lie along lines (not random)
        
        are often found together
        
        happen in land and ocean
        
        cause a dynamic earthquake and
        volcano map
      - Volcanoes are formed when liquid rock bursts out of Earth's surface
      - Earthquakes are caused by rock suddenly shifting
      - Ring of fire