﻿Report 
  of 
  the 
  State 
  Geologist. 
  683 
  

  

  the 
  strike 
  easily 
  identifiable 
  beds, 
  such 
  as 
  the 
  stratum 
  with 
  red 
  

   spots, 
  are 
  found 
  repeated, 
  sometimes 
  more 
  than 
  once. 
  Still 
  

   further 
  south 
  the 
  beds 
  on 
  the 
  east 
  are 
  separated 
  from 
  those 
  on 
  

   the 
  west 
  by 
  a 
  region 
  not 
  prolific 
  in 
  outcrops, 
  but 
  occupied 
  at 
  

   . 
  least 
  in 
  part 
  by 
  the 
  unfossiliferous 
  dolomites. 
  Still 
  further 
  

   south 
  the 
  Orthis 
  beds 
  of 
  the 
  lower 
  Chazj 
  7 
  on 
  the 
  west 
  disappear, 
  

   and 
  in 
  their 
  stead 
  we 
  find 
  the 
  Calciferous 
  (?) 
  at 
  West 
  Chazy. 
  On 
  

   the 
  east 
  the 
  beds 
  swing 
  round 
  to 
  the 
  lake, 
  shutting 
  out 
  the 
  

   Trenton, 
  and 
  are 
  succeeded 
  to 
  the 
  south 
  by 
  the 
  questionable 
  

   beds 
  along 
  the 
  lake 
  shore 
  in 
  Beekmantown. 
  If 
  these 
  be 
  Trenton, 
  

   there 
  must 
  be 
  a 
  fault 
  between 
  them 
  and 
  the 
  Chazy 
  to 
  the 
  north, 
  

   which 
  runs 
  out 
  under 
  the 
  lake 
  ; 
  otherwise 
  the 
  geology 
  of 
  Isle 
  

   la 
  Motfce 
  can 
  not 
  be 
  explained. 
  If 
  they 
  are 
  lower 
  than 
  the 
  

   Trenton 
  there 
  must 
  be 
  a 
  fault 
  between 
  them 
  and 
  the 
  Trenton 
  

   beds 
  further 
  south 
  in 
  Beekmantown. 
  There 
  must 
  be 
  a 
  consider- 
  

   able 
  fault 
  in 
  Chazy 
  township, 
  with 
  perhaps 
  minor 
  ones 
  to 
  account 
  

   for 
  the 
  width 
  of 
  the 
  Chazy 
  belt, 
  the 
  repetition 
  of 
  portions 
  of 
  it 
  

   and 
  its 
  final 
  separation 
  into 
  two 
  parts 
  by 
  the 
  tongue 
  of 
  Cal- 
  

   ciferous 
  (?). 
  There 
  is 
  a 
  probable 
  fault 
  in 
  the 
  Trenton 
  east 
  of 
  

   Chazy 
  village, 
  as 
  shown 
  by 
  the 
  abrupt 
  change 
  from 
  northeast 
  to 
  

   northwest 
  dip, 
  already 
  mentioned. 
  The 
  total 
  absence 
  of 
  the 
  

   Chazy 
  limestone 
  from 
  Beekmantown 
  township, 
  while 
  the 
  Cal- 
  

   ciferous 
  (?) 
  comes 
  close 
  to 
  the 
  Trenton, 
  indicates 
  a 
  fault 
  of 
  con- 
  

   siderable 
  magnitude, 
  the 
  same 
  continuing 
  on 
  into 
  Plattsburgh, 
  

   with 
  the 
  introduction, 
  however, 
  of 
  a 
  wedge 
  comprising 
  a 
  portion 
  

   of 
  the 
  Chazy. 
  There 
  is 
  a 
  fault 
  at 
  Bluff 
  Point, 
  where 
  Trenton 
  

   limestone, 
  not 
  representing 
  the 
  basal 
  portion 
  of 
  that 
  formation, 
  

   abuts 
  against 
  the 
  Maclurea 
  beds 
  of 
  the 
  Chazy. 
  There 
  are 
  hints 
  

   of 
  other 
  faults, 
  as 
  yet 
  too 
  vague 
  to 
  be 
  mentioned. 
  Those 
  here 
  

   mentioned 
  are 
  sufficient 
  to 
  indicate 
  the 
  structural 
  features 
  of 
  the 
  

   region. 
  I 
  hope 
  in 
  the 
  near 
  future 
  is 
  to 
  make 
  these 
  statements 
  

   more 
  precise 
  and 
  to 
  map 
  the 
  formations 
  in 
  detail. 
  

  

  "Respectfully 
  yours, 
  

  

  H. 
  P. 
  CUSHING-. 
  

  

  Adklbekt 
  College 
  of 
  Western 
  Reserve 
  University, 
  

   February 
  8, 
  1894. 
  

  

  