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Earth Science (Rocks (Sedimentary Rocks (Sedimentary Processes (Hjulstrom…

- - - - Erosion
      - Transportation
      - Weathering
      - Sedimentation
      - Hjulstrom Diagram
        
        Grain diameter vs Mean velocity
        
        indicates SEDIMENTARY PROCESS of sediment grains
    - - Sand(>1/16 mm)
      - Silt(>1/256mm)
      - Gravel(>2mm)
      - Clay
  - - - Volcanic Rock
        
        Lava Cooled down on the surface(rapidly)
        
        Small crystal size
        
        Types
        
        Andesite
        
        Dacite
        
        Rhyolite
        
        Obsidian
        
        Pumice
        
        Basalt
      - Plutonic Rock
        
        Magma Cooled down underground(slowly)
        
        large crystals are found
        
        Types
        
        Peridotite
        
        Gabro
        
        Diorite
        
        Granodiorite
        
        Granite
    - - 52%<Intermediate<69%
      - 69%<Acid
      - Basic >52%