﻿CLAYS 
  OF 
  Is^EW 
  YORK 
  5Y 
  

  

  Ontario 
  east 
  of 
  Lewiston; 
  on 
  Oashaqua 
  creek^ 
  deposits 
  of 
  tenacious 
  

   clay 
  due 
  to 
  the 
  crumbling 
  of 
  the 
  argillaceous 
  green 
  shales. 
  In 
  

   Niagara 
  co.^ 
  beds 
  of 
  clay 
  are 
  said 
  to 
  occur 
  in 
  every 
  town, 
  but 
  

   they 
  often 
  contain 
  a 
  considerable 
  amount 
  of 
  lime. 
  

  

  A 
  bed 
  of 
  blue 
  and 
  red 
  clay 
  is 
  being 
  worked 
  at 
  Brighton 
  near 
  

   Rochester. 
  This 
  deposit 
  lies 
  near 
  the 
  head 
  of 
  Irondequoit 
  bay 
  

   and 
  was 
  deposited 
  by 
  some 
  stream 
  flowing 
  into 
  it. 
  To 
  the 
  southeast 
  

   of 
  Rochester 
  is 
  a 
  large 
  eskar 
  which 
  extends 
  in 
  a 
  northeast 
  direction 
  

   to 
  near 
  Brighton. 
  Mr 
  Upham, 
  who 
  has 
  described 
  this 
  eskar, 
  con- 
  

   siders 
  that 
  it 
  was 
  formed 
  by 
  a 
  river 
  which 
  flowed 
  between 
  walls 
  of 
  

   ice 
  and 
  deposited 
  the 
  bed 
  of 
  clay 
  above 
  mentioned.^ 
  

  

  Clays 
  are 
  also 
  found 
  at 
  several 
  points 
  in 
  the 
  valley 
  of 
  the 
  Oswego 
  

   river 
  from 
  Syracuse 
  to 
  Oswego, 
  an 
  important 
  one 
  being 
  at 
  Three 
  

   River 
  point. 
  

  

  An 
  extensive 
  bed 
  of 
  red 
  and 
  gray 
  clay, 
  20 
  acres 
  in 
  extent 
  and 
  

   horizontally 
  stratified, 
  occurs 
  at 
  Watertown. 
  The 
  deposit 
  is 
  20 
  feet 
  

   thick 
  and 
  rests 
  on 
  Trenton 
  limestone. 
  

  

  Another 
  deposit 
  of 
  considerable 
  size 
  is 
  being 
  worked 
  at 
  Ogdens- 
  

   burg. 
  The 
  clay 
  is 
  blue 
  and 
  has 
  a 
  depth 
  of 
  60 
  feet. 
  

  

  At 
  Madrid, 
  in 
  St 
  Lawrence 
  co., 
  is 
  a 
  small 
  deposit, 
  probably 
  the 
  

   remnant 
  of 
  a 
  formerly 
  extensive 
  one. 
  The 
  section 
  is: 
  

  

  Yellow 
  stratified 
  sand 
  3 
  feet 
  

  

  Blue 
  clay 
  with 
  shells 
  1 
  " 
  

  

  Blue 
  clay 
  20 
  " 
  

  

  Total 
  thickness 
  24 
  " 
  

  

  The 
  shells 
  are 
  probably 
  M 
  a 
  c 
  o 
  m 
  a 
  f 
  u 
  s 
  c 
  a 
  Adams 
  

  

  Turning 
  our 
  attention 
  to 
  the 
  southern 
  portion 
  of 
  the 
  state 
  we 
  

   find 
  clays 
  in 
  abundance, 
  in 
  all 
  the 
  valleys 
  and 
  lowlands, 
  the 
  exten- 
  

  

  1 
  Geol, 
  New 
  York, 
  4th 
  district. 
  1843. 
  p. 
  227. 
  

  

  2 
  " 
  p. 
  444. 
  

   ^ 
  Roch. 
  acad. 
  sci. 
  proc, 
  2: 
  181. 
  

  

  