﻿C. 
  Keyes 
  — 
  A 
  Rotating 
  Straticulate 
  Spheroid. 
  Ill 
  

  

  Fig. 
  1. 
  

  

  Fig. 
  1. 
  Continental 
  geoanticline, 
  with 
  orographic 
  borders. 
  Dotted 
  line 
  

   is 
  circumference 
  of 
  sphere. 
  

  

  Fig. 
  2. 
  

  

  Fig. 
  2. 
  Cordilleran 
  anticlinorium, 
  with 
  unfolded 
  center. 
  

   Fig. 
  3. 
  

  

  Fig. 
  3. 
  Orographic 
  flexure, 
  with 
  overturned 
  fold. 
  

   Fig. 
  4. 
  

  

  Fig. 
  4. 
  Synclinal 
  flexure 
  — 
  warped 
  surface 
  basin. 
  

   Fig. 
  5. 
  

  

  Fig. 
  5. 
  Monoclinal 
  flexure 
  ; 
  normal 
  orographic 
  ridge 
  

  

  