﻿Mississippian 
  of 
  Ohio 
  and 
  Pennsylvania. 
  317 
  

  

  Thickness 
  

   No. 
  Feet. 
  

  

  1 
  1 
  . 
  Sandstone, 
  massive, 
  close-grained, 
  buff 
  f 
  

  

  1 
  0. 
  Shale, 
  soft, 
  drab, 
  fossils 
  , 
  . 
  _ 
  . 
  3 
  

  

  9. 
  Sandstone, 
  like 
  No. 
  11 
  f 
  

  

  8. 
  Sandstone, 
  irregular, 
  flaggy, 
  some 
  shale 
  9 
  

  

  7. 
  Corry. 
  (?) 
  Covered.. 
  45 
  

  

  6. 
  Sandstone, 
  buff, 
  not 
  massive, 
  thin 
  layers 
  5 
  

  

  5. 
  Shale 
  and 
  sandstone, 
  bluish 
  grey 
  2 
  

  

  4. 
  Limestone, 
  blue, 
  fairly 
  hard 
  £ 
  

  

  3. 
  Shale 
  and 
  sandstones, 
  bluish, 
  fossils 
  '. 
  8 
  

  

  2. 
  Covered 
  12 
  

  

  1. 
  Shale 
  and 
  sandstones 
  to 
  railroad 
  tracks.. 
  8 
  

  

  Wolfkill 
  Hollow 
  is 
  a 
  deep 
  ravine 
  with 
  all 
  the 
  earmarks 
  of 
  

   an 
  interglacial 
  valley. 
  It 
  empties 
  into 
  Oil 
  Creek 
  just 
  below 
  

   the 
  station 
  called 
  Miller 
  Farm, 
  on 
  the 
  Pennsylvania 
  railroad 
  

   between 
  Titusville 
  and 
  Oil 
  City, 
  Pa. 
  The 
  section 
  shows 
  that 
  

   in 
  this 
  region 
  tbe 
  upper 
  Meadville 
  is 
  a 
  coarse, 
  brown 
  sandstone 
  

   and 
  so 
  similar 
  to 
  the 
  Shenango 
  sandstone 
  that 
  it 
  becomes 
  dif- 
  

   ficult 
  to 
  separate 
  them. 
  The 
  Corry, 
  unfortunately, 
  is 
  not 
  

   exposed, 
  but 
  is 
  quite 
  probably 
  concealed 
  in 
  the 
  covered 
  inter- 
  

   val 
  No. 
  7. 
  

  

  26a. 
  Sprott 
  Eavine 
  Section. 
  

  

  Thickness 
  

   No. 
  Feet. 
  

  

  15. 
  Shenango 
  Sandstone. 
  Coarse 
  white- 
  quartz 
  rock, 
  

   massive, 
  layers 
  up 
  to 
  three 
  feet 
  thick; 
  on 
  weathering 
  

  

  it 
  turns 
  a 
  light 
  buff. 
  14 
  

  

  14. 
  Shale, 
  blue, 
  argillaceous 
  - 
  2 
  

  

  13. 
  Sandstone, 
  like 
  No. 
  15 
  ___ 
  24 
  

  

  12. 
  Meadville. 
  Sandstone, 
  deeply 
  weathered 
  to 
  a 
  brown 
  

  

  color, 
  layers 
  are 
  thin, 
  mostly 
  less 
  than 
  3": 
  the 
  rock 
  is 
  

  

  of 
  medium 
  grain 
  and 
  micaceous 
  13 
  

  

  11. 
  Sandstone 
  like 
  No. 
  12 
  but 
  more 
  massive 
  25^ 
  

  

  10. 
  Mead, 
  upper 
  Limestone. 
  Blue, 
  hard, 
  in 
  two 
  layers, 
  

  

  edges 
  rounded 
  as 
  usual 
  _ 
  1^ 
  

  

  9. 
  Sandstone, 
  as 
  above, 
  but 
  more 
  flaggy 
  __ 
  6£ 
  

  

  8. 
  Shale, 
  blue, 
  argillaceous 
  __ 
  1 
  

  

  7. 
  Sharpsville. 
  Shale 
  and 
  thin 
  sandstones, 
  mostly 
  

  

  covered 
  _.._ 
  22 
  

  

  6. 
  Mead, 
  lower 
  Limestone. 
  Same 
  as 
  limestone 
  above 
  -J 
  

  

  5. 
  Covered 
  to 
  outcrop 
  at 
  junction 
  with 
  Hammond 
  Run.. 
  88 
  

  

  4. 
  Orangeville. 
  Sandstone, 
  buff 
  color, 
  hard 
  but 
  rather 
  

  

  fia^p'v 
  __ 
  - 
  3 
  

  

  3. 
  Shale, 
  blue 
  and 
  drab, 
  sandy 
  -~ 
  2| 
  

  

  2. 
  Sandstone, 
  one 
  massive 
  layer, 
  buff 
  color 
  1^ 
  

  

  1. 
  Shale, 
  chocolate 
  color, 
  largely 
  argillaceous 
  4 
  

  

  This 
  section 
  was 
  made 
  in 
  a 
  small 
  ravine 
  crossing 
  the 
  road 
  

   just 
  above 
  the 
  farmhouse 
  of 
  W. 
  H. 
  Sprott, 
  two 
  miles 
  southeast 
  

  

  