﻿Report 
  of 
  tee 
  State 
  Geologist. 
  681 
  

  

  again 
  in 
  the 
  vicinity 
  of 
  faults. 
  Faults, 
  on 
  the 
  other 
  hand, 
  abound. 
  

   The 
  largest 
  and 
  most 
  conspicuous 
  of 
  them 
  are 
  meridional, 
  

   with 
  the 
  downthrow 
  always 
  on 
  the 
  east. 
  In 
  addition, 
  where 
  

   outcrops 
  are 
  sufficiently 
  numerous, 
  cross 
  faults 
  can 
  also 
  be 
  shown 
  

   to 
  occur, 
  though 
  of 
  much 
  less 
  magnitude 
  than 
  the 
  meridional 
  

   ones. 
  Sometimes 
  the 
  faulting 
  has 
  involved 
  little 
  or 
  no 
  change 
  

   in 
  dip, 
  at 
  other 
  times 
  a 
  marked 
  discrepancy 
  exists 
  in 
  the 
  dip 
  on 
  

   the 
  two 
  sides. 
  Some 
  of 
  the 
  faults 
  can 
  already 
  be 
  indicated, 
  more 
  

   de-tailed 
  work 
  will 
  undoubtedly 
  disclose 
  others; 
  still 
  others 
  there 
  

   must 
  be, 
  evidence 
  of 
  which 
  is 
  securely 
  hidden 
  from 
  view 
  by 
  wide- 
  

   spread 
  concealment 
  of 
  the 
  rocks. 
  

  

  In 
  Champlain 
  township 
  the 
  Utica 
  slate 
  at 
  Stony 
  Point 
  lies 
  less 
  

   than 
  a 
  mile 
  east 
  of 
  an 
  outcrop 
  of 
  Chazy 
  limestone, 
  exposed 
  along 
  

   the 
  road 
  running 
  south 
  from 
  Rouse's 
  Point, 
  dipping 
  six 
  degrees 
  

   to 
  north, 
  fifty 
  degrees 
  east, 
  whereas 
  the 
  Utica 
  beds 
  dip 
  ten 
  degrees 
  

   to 
  the 
  northwest. 
  A 
  marshy 
  tract 
  intervenes 
  in 
  which 
  no 
  

   exposures 
  occur, 
  but 
  nearly 
  the 
  entire 
  thickness 
  of 
  the 
  Trenton 
  

   must 
  be 
  faulted 
  out. 
  A 
  like 
  fault, 
  by 
  which 
  the 
  Utica 
  slate 
  is 
  

   brought 
  into 
  juxtaposition 
  with 
  the 
  Chazy, 
  is 
  stated 
  by 
  Messrs. 
  

   Brainerd 
  and 
  Seely 
  to 
  occur 
  on 
  the 
  east 
  side 
  of 
  Isle 
  la 
  Motte.* 
  

   On 
  which 
  side 
  of 
  this 
  fault 
  the 
  Trenton 
  beds 
  at 
  Point 
  au 
  Fer 
  lie 
  

   is 
  uncertain. 
  

  

  Messrs. 
  Brainerd 
  and 
  Seely 
  have 
  mapped 
  in 
  detail 
  a 
  small 
  dis- 
  

   trict 
  in 
  Chazy 
  township 
  just 
  south 
  of 
  Chazy 
  village.! 
  Two 
  cross 
  

   faults 
  of 
  comparatively 
  small 
  throw 
  are 
  shown 
  on 
  the 
  map, 
  and 
  

   the 
  presence 
  of 
  two 
  other 
  faults 
  in 
  the 
  vicinity 
  is 
  indicated. 
  At 
  

   least 
  one 
  of 
  these 
  locations 
  proves 
  to 
  be 
  of 
  considerable 
  magni- 
  

   tude 
  and 
  extent. 
  From 
  the 
  Chazy- 
  Champlain 
  line 
  for 
  a 
  distance 
  

   of 
  more 
  than 
  five 
  miles 
  to 
  the 
  southwest 
  through 
  Chazy 
  

   township 
  the 
  railroad 
  follows 
  rather 
  closely 
  the 
  edge 
  of 
  the 
  

   Potsdam 
  outcrop, 
  exposing 
  it 
  frequently 
  in 
  cuts. 
  Throughout 
  

   this 
  distance 
  the 
  Calciferous 
  is 
  absent, 
  though 
  the 
  passage 
  beds 
  

   are 
  found 
  overlying 
  the 
  Potsdam, 
  and 
  Chazy 
  outcrops 
  are 
  

   freque 
  ■•it, 
  lying 
  close 
  to 
  the 
  Potsdam, 
  often 
  at 
  a 
  lower 
  level 
  and 
  

   with 
  a 
  different 
  and 
  generally 
  much 
  steeper 
  dip. 
  The 
  area 
  of 
  

   greatest 
  dislocation 
  is 
  at 
  Chazy 
  village. 
  A 
  railroad 
  cut 
  through 
  

   Black 
  Eiver 
  limestone, 
  which 
  is 
  only 
  a 
  few 
  yards 
  east 
  of 
  a 
  ridge 
  

   of 
  Potsdam, 
  occurs 
  one 
  mile 
  northeast 
  of 
  the 
  village. 
  Xearer 
  

  

  * 
  Am. 
  Geo., 
  vol. 
  n,;p. 
  327. 
  t 
  Am. 
  Geo., 
  voL 
  n, 
  p. 
  326. 
  

  

  86 
  

  

  