﻿74 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  The 
  section 
  terminates 
  downward 
  20 
  feet 
  above 
  the 
  river 
  level. 
  

   Above, 
  after 
  a 
  10 
  foot 
  gap, 
  come 
  15 
  feet 
  of 
  thick 
  and 
  thin 
  bedded, 
  

   dove 
  limestone, 
  often 
  mud 
  cracked, 
  and 
  then 
  the 
  Lowville 
  base, 
  

   giving 
  an 
  80 
  foot 
  thickness 
  to 
  the 
  section. 
  It 
  is 
  not 
  certain 
  whether 
  

   its 
  base 
  overlaps 
  the 
  summit 
  of 
  the 
  previous 
  section 
  of 
  the 
  lower 
  

   division 
  or 
  not, 
  though 
  it 
  is 
  thought 
  not. 
  But 
  the 
  uppermost 
  6 
  feet 
  

   of 
  that 
  section 
  belong 
  to 
  the 
  upper 
  division 
  and 
  the 
  thickness 
  is 
  

   nearly 
  the 
  same 
  as 
  that 
  of 
  the 
  impure, 
  earthy 
  limestone 
  at 
  the 
  base 
  

   of 
  this 
  section. 
  Even 
  granting 
  that 
  amount 
  of 
  overlap, 
  the 
  two 
  

   sections 
  taken 
  together 
  give 
  a 
  certain 
  thickness 
  of 
  150 
  feet 
  to 
  the 
  

   formation 
  and 
  this 
  may 
  need 
  to 
  be 
  increased 
  by 
  from 
  10 
  to 
  20 
  feet. 
  

  

  Another 
  most 
  excellent 
  section 
  is 
  that 
  given 
  in 
  a 
  quarry 
  up 
  the 
  

   river 
  bluff 
  4 
  miles 
  west 
  of 
  Clayton 
  [pi. 
  17]. 
  A 
  slightly 
  general- 
  

   ized 
  statement 
  of 
  it 
  will 
  serve 
  the 
  purpose 
  here. 
  

  

  Thin 
  bedded, 
  dove 
  limestone 
  

  

  Gray 
  white, 
  'impure 
  earthy 
  limestone, 
  mostly 
  thin 
  bedded, 
  some 
  

  

  thick 
  and 
  irregular 
  beds 
  

   Rather 
  massive 
  limestone 
  beds 
  averaging 
  20" 
  in 
  thickness, 
  gray 
  in 
  

  

  color, 
  in 
  part 
  earthy, 
  in 
  part 
  subcrystalline 
  

   Dove 
  limestone, 
  three 
  beds, 
  the 
  lower 
  thick, 
  the 
  two 
  upper 
  thin 
  

   Hard, 
  gray, 
  subcrystalline 
  limestone, 
  two 
  thick 
  beds 
  with 
  a 
  thin 
  

  

  shaly 
  parting 
  between 
  

   Dove 
  limestone, 
  two 
  beds 
  

   Hard, 
  gray 
  limestone, 
  upper 
  inch 
  is 
  shale 
  

   A 
  hard, 
  dove 
  limestone 
  layer 
  

   Gray 
  white, 
  earthy 
  limestone, 
  thin 
  bedded 
  

   BriUie, 
  gray, 
  subcrystalline 
  limestone 
  

   Massive, 
  dove 
  limestone 
  bed 
  

   Thin 
  bedded, 
  whitish, 
  earthy 
  limestone 
  

   Gray, 
  subcrystalline 
  limestone, 
  slight 
  pinkish 
  tinge 
  

   Gray, 
  earthy 
  limestone 
  in 
  thick 
  beds 
  with 
  shaly 
  partings; 
  a 
  thin 
  

  

  dove 
  layer 
  near 
  the 
  top 
  ; 
  reddish 
  tinge 
  at 
  times 
  

   Blackish 
  limestone, 
  upper 
  bed 
  very 
  massive 
  

  

  49' 
  

  

  The 
  black 
  limestone 
  at 
  the 
  base 
  of 
  the 
  section 
  seemed 
  to 
  the 
  

   writer 
  to 
  smack 
  strongly 
  of 
  the 
  lower 
  division, 
  though 
  the 
  marine 
  

   fauna 
  was 
  but 
  feebly 
  developed, 
  and 
  Ulrich 
  expressed 
  doubts 
  in 
  

   the 
  matter. 
  Certainly 
  beds 
  of 
  the 
  type 
  are 
  not 
  usually 
  found 
  in 
  the 
  

   upper 
  division. 
  A 
  short 
  distance 
  back 
  from 
  the 
  river 
  another 
  

   quarry 
  shows 
  a 
  thickness 
  of 
  15 
  feet 
  of 
  the 
  succeeding 
  beds, 
  the 
  entire 
  

   thickness 
  being 
  of 
  dove 
  limestone, 
  both 
  thick 
  and 
  thin 
  beds, 
  with 
  

   sparing 
  fossils. 
  Further 
  back, 
  by 
  the 
  roadside 
  is 
  a 
  shallow 
  quarry 
  

   exposing 
  4 
  feet 
  of 
  still 
  higher 
  beds,. 
  two 
  massive 
  dove 
  layers 
  with 
  

   similar 
  but 
  thinner 
  beds 
  between, 
  the 
  thick 
  beds 
  holding 
  Phytopsis. 
  

   Such 
  beds 
  elsewhere 
  mark 
  the 
  extreme 
  summit 
  of 
  the 
  Pamelia. 
  

   Were 
  the 
  upper 
  part 
  of 
  the 
  section 
  complete 
  there 
  would 
  be 
  shown 
  

   here 
  a 
  thickness 
  of 
  more 
  than 
  80 
  feet 
  belonging 
  to 
  the 
  formation. 
  

  

  I 
  

  

  8'' 
  

  

  5' 
  

  

  6'' 
  

  

  7' 
  

  

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  \ 
  

  

  

  

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  . 
  

  

  

  

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  : 
  

  

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  : 
  

  

  