﻿62 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  active, 
  producing 
  about 
  60,000 
  tons 
  a 
  year 
  when 
  operated. 
  They 
  

   were 
  closed 
  down 
  last 
  in 
  November 
  1907, 
  after 
  a 
  campaign 
  of 
  two 
  

   years. 
  

  

  The 
  exposures 
  of 
  the 
  Qinton 
  strata 
  at 
  this 
  locality 
  have 
  much 
  

   interest, 
  as 
  indeed 
  they 
  afford 
  one 
  of 
  the 
  best 
  sections 
  of 
  the 
  forma- 
  

   tion 
  in 
  eastern 
  New 
  York. 
  The 
  following 
  is 
  the 
  succession 
  as 
  given 
  

   by 
  C. 
  H. 
  Smyth 
  jr. 
  1 
  

  

  MATERIAL 
  FEET 
  

  

  Calcareous 
  sandstone 
  and 
  thin 
  shale 
  50+ 
  

  

  Non-oolitic 
  ore 
  (red 
  flux) 
  6 
  

  

  Calcareous 
  sandstone 
  ." 
  6 
  

  

  Blue 
  shale 
  and 
  thin 
  sandstone 
  15 
  

  

  Oolitic 
  ore 
  2 
  

  

  Shale, 
  j 
  2 
  

  

  Oolitic 
  ore 
  1 
  

  

  Blue 
  shale 
  and 
  thin 
  sandstone 
  100+ 
  

  

  The 
  red 
  flux 
  bed 
  reaches 
  its 
  greatest 
  thickness 
  at 
  this 
  point. 
  The 
  

   oolitic 
  ore 
  alone 
  is 
  mined. 
  The 
  existence 
  of 
  two 
  oolitic 
  beds 
  in 
  the 
  

   Clinton 
  section 
  has 
  been 
  generally 
  accepted 
  as 
  a 
  normal 
  condition, 
  

   but 
  this 
  is 
  not 
  the 
  case. 
  There 
  is 
  convincing 
  evidence 
  to 
  show 
  that 
  

   the 
  lower 
  seam 
  represents 
  nothing 
  more 
  than 
  a 
  split 
  in 
  the 
  main 
  bed 
  

   due 
  to 
  a 
  thickening 
  locally 
  of 
  the 
  shale 
  or 
  sandstone 
  parting 
  that 
  is 
  

   nearly 
  everywhere 
  present. 
  There 
  are 
  few 
  places 
  where 
  the 
  two 
  

   beds 
  are 
  more 
  than 
  a 
  few 
  inches 
  apart. 
  As 
  a 
  rule 
  the 
  ore 
  in 
  this 
  

   vicinity 
  really 
  measures 
  from 
  30 
  to 
  36 
  inches, 
  that 
  is 
  the 
  combined 
  

   thickness 
  of 
  the 
  two 
  beds, 
  and 
  it 
  has 
  been 
  the 
  recent 
  practice 
  to 
  ex- 
  

   tract 
  the 
  entire 
  oolitic 
  ore 
  without 
  reference 
  to 
  the 
  intervening 
  rock 
  

   layer. 
  

  

  The 
  composition 
  of 
  the 
  oolitic 
  ore 
  at 
  this 
  locality 
  is 
  shown 
  by 
  the 
  

   following 
  analyses. 
  

  

  1 
  2 
  3 
  4 
  s 
  

  

  Fe 
  2 
  3 
  .. 
  ••• 
  69.17 
  42.97 
  79.98 
  63 
  71.82 
  

  

  Si0 
  2 
  ... 
  11.57 
  2 
  9-7 
  2 
  9-98 
  I2 
  -63 
  11.34 
  

  

  A1 
  2 
  3 
  ... 
  3.92 
  4.13 
  2.4 
  5.45 
  3.91 
  

  

  MnO.. 
  .19 
  .37 
  tr. 
  .15 
  1.63 
  

  

  CaO..... 
  5.8 
  8.57 
  1.54 
  6.2 
  3.97 
  

  

  MgO 
  2.27 
  1.96 
  .3 
  2.yy 
  2.21 
  

  

  S 
  28 
  .837 
  Nil 
  .23 
  Nil 
  

  

  P 
  2 
  5 
  1.726 
  1.534 
  1.239 
  1.5 
  2.096 
  

  

  1 
  J. 
  F. 
  Kemp. 
  Ore 
  Deposits 
  of 
  the 
  United 
  States. 
  1896. 
  p. 
  104. 
  

  

  