﻿GNEISS 
  

  

  LOWER 
  SILURIAN 
  

  

  BB1 
  

  

  GLACIAL 
  

  

  O 
  » 
  01 
  

  

  CAtcir. 
  n~ 
  

  

  CMAZY 
  ''■ 
  "»°° 
  'I 
  

  

  7ZST 
  GAVELS 
  ETC 
  

  

  