﻿Report 
  of 
  the 
  State 
  Geologist. 
  455 
  

  

  Boxenkill 
  during 
  and 
  immediately 
  following 
  the 
  Champlain 
  

   deposition, 
  for 
  at 
  that 
  time 
  the 
  mouths 
  of 
  these 
  streams 
  were 
  at 
  

   the 
  point 
  now 
  marked 
  by 
  delta 
  deposits. 
  

  

  Some 
  features 
  of 
  the 
  clays 
  and 
  sands 
  have 
  been 
  described 
  by 
  

   Mather, 
  and 
  more 
  recently 
  by 
  H. 
  Eies,* 
  in 
  a 
  report 
  on 
  the 
  clays 
  

   of 
  the 
  Hudson 
  river 
  valley. 
  

  

  Mr. 
  Eies 
  states 
  that 
  in 
  the 
  brickyards 
  at 
  Coeymans 
  Landing 
  

   there 
  are 
  100 
  feet 
  of 
  blue 
  clay 
  below, 
  with 
  twenty 
  feet 
  of 
  yellow 
  

   clay 
  above. 
  The 
  latter 
  is 
  capped 
  by 
  two 
  to 
  three 
  feet 
  of 
  loam. 
  

   The 
  deposits 
  lie 
  on 
  a 
  kame-like 
  mass 
  of 
  sand 
  and 
  gravel 
  at 
  an 
  

   altitude 
  of 
  fifteen 
  feet 
  above 
  the 
  river. 
  This 
  underlying 
  series 
  

   is 
  said 
  to 
  exhibit 
  some 
  small 
  faults 
  in 
  this 
  vicinity. 
  The 
  sand 
  is 
  

   of 
  grayish-black 
  color, 
  consisting 
  of 
  grains 
  of 
  quartz 
  and 
  shale, 
  

   mostly 
  the 
  latter. 
  There 
  are, 
  however, 
  also 
  grains 
  of 
  garnet, 
  

   epidote 
  and 
  feldspar, 
  and 
  scattered 
  through 
  it 
  are 
  pebbles 
  of 
  

   quartz, 
  etc., 
  most 
  of 
  them 
  not 
  over 
  an 
  inch 
  in 
  diameter. 
  Sixty 
  

   feet 
  of 
  this 
  sand 
  was 
  penetrated 
  in 
  a 
  well 
  near 
  the 
  brickyards. 
  

  

  Eespectfully 
  yours, 
  

  

  K 
  H. 
  DAETON. 
  

  

  *The 
  Hudson 
  river 
  brick 
  clays. 
  Tenth 
  report 
  of 
  State 
  Geologist 
  (of 
  New 
  York), 
  for 
  1890, 
  

   pp. 
  124-155. 
  

  

  