Petrography

• Texture
  - Grains
  - Matrix
  - Porosity
  - Cement
  

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• Size
  - energy of environment
  

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• Sorting
  - agent of deposition
  - Wind > Water > Ice
  

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• Shape
  - angular vs rounded
  - distance of travel
  

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last updated 1-2-98

All original material copyright (c) 1998 by Annabelle Foos. All rights reserved.