﻿454: 
  J. 
  Barrett 
  — 
  Upper 
  Devonian 
  Delta 
  of 
  the 
  

  

  Depth 
  

   below- 
  

   Thick- 
  top 
  of 
  

   ness 
  Sum 
  Pocono 
  

  

  Olive 
  sandstone, 
  thin 
  to 
  thick 
  bedded, 
  inter- 
  

   bedded 
  with 
  smooth 
  siliceous 
  shales 
  310 
  

  

  Gray 
  sandstone, 
  coarse 
  grained 
  _ 
  42 
  

  

  Gray 
  conglomerate, 
  pebbles 
  up 
  to 
  0'5 
  in. 
  12 
  1455 
  —4896 
  

  

  Base 
  of 
  more 
  arenaceous 
  and 
  resistant 
  

   Catskill. 
  

  

  Weaker 
  Middle 
  Catskill 
  Member. 
  20 
  to 
  25 
  per 
  cent 
  

   red 
  shale. 
  

   Red 
  argillaceous 
  sandstone 
  varying 
  from 
  

   maroon 
  sandstone 
  to 
  red 
  shale, 
  some 
  cross- 
  

   bedding 
  _ 
  _._ 
  74 
  

  

  Red 
  brown 
  sandy 
  shale, 
  obscurely 
  mud 
  

  

  cracked 
  40 
  —5010 
  

  

  Pale 
  brown 
  sandstone 
  ._ 
  22 
  

  

  * 
  Red 
  brown 
  shale 
  with 
  obscure 
  rainprints, 
  

  

  mud 
  cracks, 
  and 
  marks 
  of 
  rootlets 
  40 
  — 
  5072 
  

  

  Maroon 
  to 
  gray 
  sandstone, 
  hard 
  and 
  thick 
  bedded. 
  15 
  

  

  Red 
  shale, 
  soft 
  and 
  massive 
  11 
  

  

  Argillaceous 
  red 
  sandstone 
  and 
  shale, 
  well 
  

  

  bedded 
  _ 
  50 
  

  

  Concealed 
  152 
  

  

  Olive 
  gray 
  sandstone 
  _. 
  113 
  

  

  Redshale 
  23 
  

  

  Red 
  argillaceous 
  sandstone 
  15 
  

  

  Olive 
  gray 
  sandstone.. 
  45 
  

  

  No 
  exposure, 
  largely 
  olive 
  gray 
  sandstone, 
  

  

  argillaceous 
  162 
  

  

  Olive 
  gray 
  sandstone, 
  thick 
  bedded, 
  weathering 
  

  

  yellow 
  1. 
  167 
  

  

  Red 
  sandy 
  shale 
  interbedded 
  with 
  red 
  argil- 
  

   laceous 
  muscovitic 
  sandstone. 
  The 
  shale 
  

   is 
  without 
  good 
  bedding 
  and 
  in 
  places- 
  has 
  

  

  irregular 
  yellow 
  lines 
  lacing 
  through 
  it 
  121 
  

  

  No 
  exposure 
  . 
  594 
  

  

  Red 
  argillaceous 
  sandstone 
  (mud 
  cracks 
  at 
  

   — 
  6595 
  in 
  the 
  Schuylkill 
  Eiver 
  section 
  

  

  south 
  of 
  Pottsville)... 
  250 
  -6790 
  

  

  Yellow 
  shale, 
  sandy 
  54 
  

  

  Yellow 
  argillaceous 
  sandstone 
  _ 
  36 
  

  

  Red 
  shale 
  50 
  2034-6930 
  

  

  Yellow 
  argillaceous 
  sandstones 
  and 
  red 
  shales 
  

   extend 
  some 
  hundreds 
  of 
  feet 
  below. 
  Ex- 
  

   posures 
  poor 
  and 
  structure 
  irregular. 
  

  

  Section 
  of 
  Basal 
  Catskill 
  on 
  the 
  Schuylkill 
  Eiver, 
  

   South 
  of 
  Pottsville. 
  Mostly 
  shales, 
  red 
  

   in 
  upper 
  portion. 
  15 
  miles 
  southwest 
  from 
  

   the 
  Liitle 
  Schuylkill 
  section. 
  

   Section 
  begins 
  at 
  -6880. 
  -6880 
  

  

  Red 
  lustrous 
  shales, 
  well 
  bedded, 
  showing 
  

   mud 
  cracks 
  and 
  rainprints, 
  the 
  mud 
  crack 
  

   fillings 
  without 
  luster. 
  70 
  - 
  6950 
  

  

  Olive 
  shales 
  with 
  plant 
  remains 
  20 
  

  

  Red 
  sandstone, 
  argillaceous, 
  thick 
  bedded, 
  some 
  

  

  layers 
  mud 
  cracked 
  25 
  — 
  &995 
  

  

  Red 
  shales, 
  fissile 
  to 
  massive 
  55 
  

  

  Argillaceous 
  sandstone, 
  greenish 
  gray 
  25 
  

  

  Red 
  shale 
  showing 
  in 
  soil 
  but 
  section 
  not 
  ex- 
  

   posed 
  in 
  detail 
  _ 
  225 
  

  

  