﻿I 
  

  

  14 
  ECONOMICAL 
  GEOLOGY. 
  

  

  Ft. 
  In. 
  

  

  1 
  3 
  

  

  Impure 
  limestone 
  

  

  Black 
  shiile 
  ., 
  10 
  

  

  Gray 
  ahale 
  " 
  

  

  Dark 
  blue 
  ahale 
  „ 
  

  

  Fossiliferous 
  limestone 
  " 
  5 
  

  

  Dark 
  gray 
  sandstone 
  

  

  Bhale 
  and 
  limestone 
  

  

  Fossiliferous 
  limestone 
  g 
  

  

  Black 
  slate 
  

  

  Coal,(No.5j 
  " 
  — 
  - 
  

  

  Total 
  depth 
  

  

  At 
  Auburn 
  coal 
  No. 
  5 
  was 
  reached 
  at 
  a 
  depth 
  of 
  2C8 
  feet. 
  The 
  

   coal 
  ranges 
  from 
  six 
  to 
  seven 
  feet 
  in 
  thickness, 
  with 
  a 
  good 
  roof 
  of 
  

   black 
  slate 
  and 
  limestone. 
  No 
  details 
  of 
  the 
  shaft 
  could 
  be 
  

   obtained. 
  

  

  In 
  Menard 
  county 
  several 
  shafts 
  have 
  been 
  sunk 
  since 
  the 
  publi- 
  

   cation 
  of 
  the 
  report 
  on 
  that 
  county, 
  among 
  which 
  are 
  those 
  at 
  

   Sweetwater, 
  Athens, 
  Greenview 
  and 
  Tallula. 
  The 
  following 
  record 
  

   of 
  the 
  Sweetwater 
  shaft 
  was 
  kindly 
  furnished 
  me 
  by 
  Mr. 
  Y\ 
  . 
  Pabkw 
  : 
  

  

  Ft. 
  In. 
  

   ■'i\ 
  

   No. 
  1. 
  Soil 
  and 
  brown 
  clay 
  

  

  No. 
  2. 
  Hardpan 
  " 
  

  

  No. 
  :t. 
  «and 
  . 
  { 
  ](( 
  

  

  No. 
  I. 
  day 
  ' 
  j 
  

  

  No. 
  5. 
  Black 
  muoky 
  soil 
  (foroat 
  bed) 
  

  

  No. 
  B. 
  Clay 
  with 
  streak 
  of 
  smut 
  six 
  inches 
  

  

  No. 
  7. 
  Limestone 
  

  

  No. 
  8. 
  (lay 
  -halo 
  ' 
  „ 
  

  

  No. 
  9. 
  Limestone 
  ' 
  g 
  

  

  No. 
  10. 
  Bituminous 
  shale 
  

  

  No. 
  11. 
  Coal 
  t 
  

  

  No 
  . 
  12. 
  Fire 
  clay 
  * 
  

  

  166 
  

  

  Total 
  depth 
  

  

  In 
  this 
  shaft 
  they 
  evidently 
  struck 
  the 
  bed 
  rock 
  about 
  the 
  horizon 
  

  

  of 
  another 
  coal 
  seam, 
  probably 
  Nos. 
  6 
  or 
  7. 
  as 
  the 
  lowest 
  olay 
  bed 
  

  

  in 
  the 
  above 
  section 
  was 
  reported 
  to 
  have 
  a 
  streak 
  of 
  black 
  clay 
  

  

  about 
  three 
  feet 
  from 
  the 
  bottom 
  six 
  inehes 
  thick, 
  whieh 
  no 
  doubl 
  

  

  ,,,„„. 
  from 
  the 
  decomposition 
  of 
  a 
  black 
  shale, 
  or 
  a 
  thin 
  seam 
  of 
  

  

  coal. 
  

   The 
  Greenview 
  shaft 
  is 
  97 
  feet 
  to 
  the 
  top 
  of 
  the 
  coal. 
  Che 
  Mam 
  

  

  is 
  aboul 
  s,x 
  bet 
  thick 
  with 
  a 
  roof 
  of 
  black 
  shale. 
  Bed 
  rock 
  WM 
  

  

  struck 
  at 
  the 
  depth 
  of 
  forty 
  f< 
  

  

  The 
  Tallula 
  Bhafl 
  is 
  176 
  bet 
  in 
  depth. 
  Coal 
  live 
  to 
  ail 
  feet 
  m 
  

   thickness, 
  with 
  the 
  usual 
  black 
  shale 
  roof. 
  The 
  lire 
  day 
  below 
  the 
  

   coal 
  is 
  reported 
  to 
  be 
  1 
  1 
  feel 
  thick. 
  

  

  