﻿LIMESTONES 
  OF 
  NEW 
  YORK 
  AND 
  THEIR 
  ECONOMIC 
  VALUE 
  447 
  

  

  The 
  Niagara 
  limestone 
  is 
  exposed 
  at 
  several 
  places 
  from 
  the 
  

   northwest 
  corner 
  of 
  the 
  county 
  to 
  Bridgeport. 
  It 
  generally 
  

   forms 
  a 
  low 
  ridge. 
  At 
  Diedrich's 
  quarry 
  in 
  Lysander 
  village 
  

   where 
  it 
  has 
  been 
  operated 
  for 
  a 
  number 
  of 
  years, 
  the 
  magnesian 
  

   Niagara 
  limestone 
  is 
  5 
  feet 
  thick 
  and 
  of 
  dark 
  gray 
  color. 
  Near 
  

   Baldwinsville 
  it 
  is 
  4 
  feet 
  thick 
  but 
  rather 
  shaly, 
  in 
  Cicero 
  it 
  is 
  

   3 
  feet 
  thick 
  and 
  was 
  formerly 
  used 
  for 
  making 
  lime. 
  As 
  a 
  rule 
  

   the 
  Niagara 
  limestone 
  can 
  be 
  easily 
  quarried.** 
  

  

  Helderberg. 
  The 
  hydraulic 
  limestones 
  of 
  Onondaga 
  county 
  

   are 
  mostly 
  dark 
  blue, 
  fine 
  grained 
  rocks 
  in 
  beds 
  1 
  to 
  5 
  feet 
  

   thick. 
  They 
  weather 
  to 
  a 
  bluish 
  gray. 
  Most 
  of 
  them 
  are 
  

   fairly 
  pure 
  but 
  at 
  times 
  contain 
  some 
  magnesia 
  or 
  clayey 
  ma- 
  

   terial. 
  The 
  pure 
  beds 
  belong 
  to 
  the 
  important 
  lime 
  furnishing 
  

   horizon 
  of 
  the 
  county. 
  

  

  The 
  two 
  beds 
  of 
  hydraulic 
  limestone 
  lie 
  near 
  the 
  top 
  of 
  the 
  

   group 
  and 
  according 
  to 
  Luther 
  are 
  often 
  separated 
  by 
  4 
  feet 
  of 
  

   impure 
  limestone. 
  In 
  the 
  eastern 
  part 
  of 
  the 
  county 
  the 
  upper 
  

   layer 
  is 
  4 
  feet 
  thick 
  but 
  it 
  pinches 
  out 
  in 
  the 
  Split 
  rock 
  quarry 
  

   west 
  of 
  Syracuse 
  to 
  reappear 
  again 
  near 
  Marcellus 
  Falls 
  where 
  

   it 
  is 
  2 
  feet 
  10 
  inches 
  in 
  Watkins 
  quarry 
  and 
  reaches 
  4 
  feet 
  in 
  

   Corrigan's 
  quarry 
  as 
  Skaneateles. 
  As 
  at 
  this 
  latter 
  place 
  it 
  is 
  

   only 
  separated 
  from 
  the 
  lower 
  bed 
  by 
  a 
  shaly 
  layer 
  the 
  two 
  

   practically 
  form 
  one 
  bed 
  9 
  feet 
  6 
  inches 
  thick. 
  

  

  At 
  Manlius 
  the 
  beds 
  are 
  separated 
  by 
  4 
  feet 
  of 
  blue 
  limestone 
  

   and 
  at 
  Street's 
  quarry 
  near 
  Onondaga 
  hill 
  by 
  1 
  foot 
  8 
  inches, 
  at 
  

   Marcellus 
  falls 
  by 
  1 
  foot 
  7 
  inches, 
  and 
  at 
  Skaneateles 
  they 
  are 
  

   together. 
  

  

  Luther 
  gives 
  the 
  following 
  thicknesses 
  for 
  the 
  lower 
  water- 
  

   lime 
  layer 
  in 
  Onondaga 
  county: 
  

  

  Manlius, 
  J. 
  Beahan's 
  quarry 
  4 
  ft 
  

  

  Jamesville, 
  E. 
  B. 
  Alvord 
  4 
  ft 
  5 
  in. 
  

  

  Brighton, 
  Button 
  and 
  Clarke 
  5 
  ft 
  

  

  Skaneateles, 
  Corrigan's 
  quarry 
  5 
  ft 
  

  

  At 
  Split 
  rock 
  the 
  upper 
  member 
  occurs 
  in 
  the 
  southeastern 
  part 
  

   of 
  the 
  quarry 
  but 
  is 
  wanting 
  in 
  the 
  western 
  portion, 
  its 
  place 
  

   being 
  occupied 
  by 
  a 
  9 
  foot 
  bed 
  of 
  blue 
  limestone. 
  

  

  aLuther. 
  Geol. 
  Onondaga 
  county, 
  loth 
  an. 
  rep't 
  N. 
  Y. 
  state 
  geol. 
  

  

  