﻿Quart 
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  , 
  Journ. 
  Geol 
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  Soc 
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  Vol 
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  XXX. 
  P] 
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  XI 
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  PLAIN 
  OF 
  

   THE 
  MET1DJA 
  

  

  SAND 
  HILLS, 
  DESERT 
  

  

  G.Mcur 
  del 
  A/jfi/. 
  lS7;f. 
  

  

  