﻿Plate 
  i 
  6 
  

  

  H. 
  G. 
  Whitlock, 
  photo 
  

   Specimen 
  of 
  Lower 
  Cambric 
  rock 
  from 
  the 
  top 
  of 
  the 
  south 
  

   face 
  of 
  the 
  Bald 
  Mountain 
  quarry. 
  The 
  upper 
  view 
  shows 
  the 
  small 
  slip 
  

   faults 
  producing 
  offsets 
  on 
  the 
  bedding 
  plane 
  that 
  appear 
  as 
  broader 
  light 
  

   bands 
  in 
  the 
  photograph. 
  

  

  The 
  lower 
  view 
  shows 
  the 
  other 
  side 
  of 
  the 
  same 
  slab; 
  it 
  is 
  so 
  illumi- 
  

   nated 
  that 
  the 
  numerous 
  small 
  ripples 
  parallel 
  with 
  the 
  fault 
  planes 
  are 
  

   seen. 
  They 
  result 
  from 
  the 
  shoving 
  of 
  the 
  specimen 
  in 
  the 
  overthrusting 
  

   along 
  a 
  plane 
  oblique 
  to 
  the 
  bedding 
  plane 
  which 
  forms 
  the 
  surface 
  of 
  the 
  

   slab. 
  Both 
  views 
  reduced 
  one-fifth. 
  

  

  