Erratic Blocks and Other Quaternary Symbols

Erratic Blocks

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  SOE
  Erratic blockExotic boulder (>256 mm in diameter) that was removed during deglaciation and transported mainly by glacial processes

  Point (RGB 255/0/0)

   

• 
  SOG
  Ploughing bouldersErratic block transported by alluvial, lake or sea ice or icebergs. These boulders are typically found in the vicinity of water bodies or major rivers where they form a ridge, reaching up to a few metres high

  Point (RGB 255/127/0)

   

• 
  SOI
  Indicator blockErratic block whose chemical composition or lithological nature is indicative of mineralization

  Point

   

• 
  SOED
  Glacial dispersion studiesSite where a thematic study has been carried out (e.g. a till fabric, a petrographic count, etc.)

  Point (RGB 104/104/104)

   

• 
  SOTE
  Erratic trainSwarm of blocks aligned according to the orientation of ice flow

  Point (RGB 255/0/0)

   

• 
  SOTI
  Indicator trainSwarm of blocks containing several indicators of the same geological context and aligned according to the orientation of ice flow

  Point

   

Other Quaternary Symbols

• 
  DON_GEOCH
  Chronological data (dating)Dated site

  Point

   

• 
  GSXX
  Sediment sampleSite where a sample of the secondary environment (glacial, fluvioglacial, lake bottom or stream sediment, etc.) has been collected

  Point

   

• 
  GME
  Group of glacial erosional marksSite where observations on glacial erosion marks are gathered

  Point

   

• 
  SOQ
  Observation siteSite where information has been collected in the field

  Point