﻿11] 
  

  

  General 
  Geology 
  : 
  Cretaceous 
  

  

  57 
  

  

  "It 
  evident 
  that 
  subsidences 
  and 
  consequent 
  dislocations 
  fre- 
  

   quently 
  occur 
  in 
  the 
  mass 
  ; 
  and 
  large 
  fragments 
  frequently 
  

   tumble 
  down." 
  

  

  Hopkins' 
  section 
  (see 
  p. 
  33 
  of 
  this 
  report) 
  shows 
  his 
  idea 
  of 
  

   the 
  relation 
  of 
  the 
  Eocene 
  and 
  Cretaceous. 
  

  

  — 
  E- 
  

  

  H 
  Cretaceous 
  Outcrops 
  

  

  Fig. 
  3. 
  — 
  Sketch 
  of 
  Winfield 
  '■'■marble''^ 
  quarry 
  and 
  surroundings. 
  This 
  

   map 
  embraces 
  one 
  square 
  mile. 
  Elevations 
  are 
  denoted 
  by 
  contour 
  

   intervals 
  of 
  20 
  feet, 
  commencing 
  with 
  at 
  the 
  base 
  of 
  the 
  eastern 
  

   Bluff. 
  

  

  Johnson 
  has 
  indicated 
  that 
  the 
  Cretaceous 
  limestone, 
  Tertiary 
  

   limestone 
  (which 
  he 
  improperly 
  calls 
  Jackson) 
  and 
  the 
  Orange 
  

   sands 
  above, 
  are 
  each 
  unconformable 
  in 
  their 
  bedding 
  to 
  all 
  the 
  

   other 
  layers. 
  

  

  lyerch 
  (p. 
  72, 
  2d 
  report), 
  says 
  definitely 
  that 
  "at 
  the 
  close 
  of 
  

   the 
  Mesozoic 
  time 
  enormous 
  plutonic 
  forces 
  convulsed, 
  fractured, 
  

  

  