﻿12 
  ECONOMICAL 
  GEOLOGY. 
  

  

  Feet. 
  

  

  No. 
  i:s. 
  Shale 
  and 
  slate 
  ' 
  ; 
  

  

  No. 
  14. 
  Hard 
  sandstone, 
  (base 
  of 
  Coal 
  Measures) 
  ir 
  ' 
  

  

  No. 
  15. 
  Shale 
  " 
  

  

  No. 
  16. 
  Hard 
  silicious 
  stone 
  

  

  No. 
  IT. 
  Bandy 
  shale 
  

  

  No. 
  18. 
  Slate 
  W 
  

  

  No. 
  19. 
  Hard 
  limestone 
  

  

  No.20. 
  Shale 
  * 
  

  

  No. 
  21. 
  Limestone 
  and 
  shale 
  

  

  No. 
  22. 
  Shale, 
  very 
  hard 
  :fl 
  

  

  No. 
  25. 
  Sulphuretof 
  iron 
  

  

  No. 
  24. 
  Limestone 
  and 
  shale 
  

  

  No. 
  25. 
  Limestone 
  

  

  No. 
  26. 
  Shale 
  

  

  91 
  

  

  No. 
  27. 
  Hard 
  limestone 
  

  

  Totaldepth 
  31 
  - 
  

  

  All 
  the 
  beds 
  below 
  No. 
  14 
  of 
  the 
  foregoing 
  section 
  probably 
  belong 
  

   to 
  the 
  St. 
  Louis 
  and 
  Keokuk 
  divisions 
  of 
  the 
  Lower 
  Carboniferous 
  

   series, 
  and 
  hence 
  are 
  below 
  the 
  horizon 
  of 
  any 
  known 
  coal. 
  

  

  At 
  Roodhouse, 
  about 
  four 
  miles 
  southwest 
  of 
  Manchester, 
  a 
  shaft 
  

   was 
  sunk 
  for 
  coal, 
  and 
  the 
  lower 
  seam 
  was 
  found 
  to 
  be 
  2 
  feet 
  1 
  

   inches 
  in 
  thickness, 
  with 
  a 
  good 
  roof 
  of 
  black 
  slate. 
  The 
  beds 
  passed 
  

   through, 
  in 
  sinking 
  the 
  shaft, 
  were 
  the 
  following: 
  

  

  Ft. 
  In. 
  

  

  Soil, 
  clay 
  and 
  gravel, 
  (drift) 
  "' 
  

  

  Blue 
  and 
  ash-colored 
  clay 
  shale 
  '■' 
  

  

  Black 
  slate 
  lfoottol 
  3 
  

  

  1 
  4 
  

  

  Coal 
  " 
  

  

  Fire-clay 
  and 
  clay 
  shale 
  ls 
  

  

  A 
  boring 
  made 
  here, 
  struck 
  the 
  St. 
  Louis 
  limestone 
  at 
  a 
  depth 
  of 
  

   about 
  fifty 
  feet 
  below 
  the 
  coal. 
  The 
  roof 
  of 
  the 
  Roodhouse 
  coal 
  is 
  a 
  

   hard 
  black 
  shale 
  or 
  slate 
  filled 
  with 
  nodules 
  of 
  Bulphuret 
  of 
  iron, 
  which 
  

   makes 
  a 
  permanent 
  and 
  substantial 
  roof. 
  The 
  under 
  clay 
  so 
  me 
  to 
  

   1, 
  ( 
  . 
  of 
  a 
  good 
  quality, 
  and 
  similar 
  to 
  that 
  so 
  extensively 
  used 
  at 
  

   Whitehall 
  for 
  fire-hrick 
  and 
  pottery. 
  In 
  Scott 
  county, 
  and 
  in 
  the 
  cent- 
  

   ral 
  and 
  western 
  portions 
  of 
  Greene 
  and 
  Jersey, 
  the 
  two 
  lower 
  coals. 
  

   Nos. 
  1 
  ami 
  2 
  of 
  the 
  general 
  section, 
  are 
  the 
  only 
  ones 
  likely 
  to 
  oc- 
  

   cur; 
  hut 
  on 
  the 
  extreme 
  eastern 
  holders 
  of 
  the 
  last 
  named 
  conn! 
  

   coals 
  6 
  and 
  6 
  are 
  to 
  he 
  found 
  on 
  Eodge'e 
  creek, 
  mar 
  the 
  Greene 
  

  

  county 
  line, 
  and 
  a 
  mile 
  and 
  a 
  half 
  west 
  of 
  Brighton, 
  near 
  the 
  eastern 
  

   border 
  of 
  Jersey 
  county. 
  

  

  At 
  Gillespie, 
  in 
  Macoupin 
  county, 
  a 
  shaft 
  has 
  been 
  sunk 
  during 
  

  

  il„. 
  p 
  aB 
  i 
  year 
  by 
  1'-. 
  l>. 
  Doreey 
  & 
  Bon, 
  for 
  the 
  details 
  of 
  which 
  I 
  am 
  

   indebted 
  to 
  Mr. 
  Uexander 
  Butters. 
  Coal 
  No. 
  :. 
  was 
  found 
  here 
  at 
  

   the 
  dcoth 
  of 
  abort 
  865 
  fed. 
  passing 
  the 
  following 
  beds: 
  

  

  