﻿IRON 
  ORES 
  OF 
  THE 
  CLINTON 
  FORMATION 
  21 
  

  

  STRATA 
  FEET 
  

  

  Limestone 
  (Wolcott), 
  with 
  abundant 
  Pentamerus 
  8 
  

  

  Iron 
  ore, 
  fossil 
  22 
  in. 
  

  

  Green 
  shale 
  (Sodus) 
  compact, 
  calcareous 
  10+ 
  

  

  Medina 
  shale 
  

  

  Wallington, 
  Wayne 
  co. 
  From 
  the 
  test 
  hole 
  put 
  down 
  at 
  this 
  

   locality, 
  the 
  following 
  condensed 
  section 
  lias 
  been 
  prepared. 
  The 
  

   full 
  details 
  are 
  given 
  in 
  the 
  part 
  of 
  the 
  present 
  report 
  relating 
  to 
  

   the 
  recent 
  exploration. 
  The 
  section 
  is 
  introduced 
  here 
  for 
  the 
  pur- 
  

   pose 
  of 
  elucidating 
  the 
  stratigraphic 
  relations 
  in 
  this 
  region 
  which 
  

   have 
  not, 
  heretofore, 
  been 
  satisfactorily 
  explained. 
  

  

  STRATA 
  FEET 
  

  

  Limestone 
  10 
  

  

  Dark 
  shale, 
  with 
  graptolites 
  36 
  

  

  Pentamerus 
  limestone 
  14 
  

  

  Shale, 
  thin 
  bedded, 
  with 
  few 
  fossil 
  varieties 
  54 
  

  

  Pentamerus 
  limestone 
  • 
  13 
  

  

  Ore, 
  fossil 
  1 
  

  

  Limestone 
  1 
  

  

  Ore, 
  fossil 
  8 
  in. 
  

  

  Green 
  shale, 
  calcareous 
  -. 
  . 
  . 
  5 
  

  

  Medina 
  shale 
  2+ 
  

  

  The 
  total 
  thickness 
  of 
  the 
  Clinton 
  shown 
  in 
  the 
  hole 
  is 
  135 
  feet, 
  

   an 
  increase 
  of 
  54 
  feet 
  over 
  the 
  amount 
  at 
  Rochester. 
  

  

  It 
  will 
  be 
  observed 
  that 
  there 
  are 
  two 
  beds 
  of 
  the 
  Pentamerus 
  

   limestone, 
  separated 
  by 
  54 
  feet 
  of 
  shale. 
  In 
  the 
  early 
  reports 
  this 
  

   duplication 
  of 
  the 
  limestone 
  was 
  not 
  recognized, 
  which 
  led 
  to 
  a 
  mis- 
  

   interpretation 
  of 
  Clinton 
  stratigraphy 
  in 
  the 
  eastern 
  half 
  of 
  Wayne 
  

   county. 
  The 
  main 
  or 
  lower 
  ore 
  horizon, 
  indicated 
  by 
  the 
  two 
  

   seams 
  in 
  the 
  above 
  section, 
  occurs 
  just 
  below 
  the 
  first 
  limestone 
  bed. 
  

   a 
  position 
  that 
  is 
  constant 
  throughout 
  Wayne 
  county. 
  There 
  is 
  in 
  

   some 
  places 
  a 
  third 
  ore 
  seam 
  immediately 
  above 
  the 
  upper 
  Pentam- 
  

   erus 
  limestone. 
  This 
  is 
  shown 
  on 
  Second 
  creek, 
  near 
  the 
  entrance 
  

   to 
  Sodus 
  bay, 
  a 
  little 
  way 
  east 
  of 
  Wallington, 
  a 
  locality 
  referred 
  to 
  

   by 
  Hall 
  as 
  the 
  Shaker 
  settlement. 
  From 
  study 
  of 
  the 
  Second 
  creek 
  

   exposure 
  Hall 
  expressed 
  the 
  opinion 
  that 
  the 
  limestone 
  there 
  was 
  

   identical 
  with 
  the 
  lower 
  Pentamerus 
  and 
  that 
  the 
  iron 
  ore 
  bed 
  found 
  

   above 
  it 
  was 
  the 
  only 
  one 
  in 
  that 
  locality. 
  It 
  is 
  now 
  certain 
  that 
  

   there 
  are 
  two 
  ore 
  horizons, 
  the 
  lower 
  being 
  concealed, 
  as 
  its 
  line 
  of 
  

  

  