﻿134 
  THEOBALD 
  : 
  GEOLOGY 
  OE 
  EEGTT* 
  

  

  d- 
  Shales 
  and 
  sandstones 
  in 
  from 
  six 
  to 
  eighteen-inch 
  beds 
  ... 
  

  

  Massive 
  greenishgray 
  sandstone 
  ... 
  ... 
  

  

  Shales 
  with 
  a 
  few 
  thin 
  sandstone 
  beds 
  ... 
  

  

  Shales 
  with 
  a 
  few 
  thick 
  sandstone 
  beds 
  ... 
  ... 
  

  

  Sandstone 
  with 
  a 
  few 
  shaly 
  partings 
  ... 
  ... 
  

  

  Very 
  massive 
  blue 
  and 
  gray 
  sandstone 
  ... 
  .,, 
  

  

  e. 
  Dark 
  harsh 
  shales 
  and 
  dark 
  thin-bedded 
  sandstone, 
  none 
  

  

  over 
  four 
  inches 
  ... 
  ... 
  ... 
  

  

  Massive 
  argillaceous 
  sandstone 
  .*. 
  

  

  Dark 
  hard 
  shales 
  and 
  sandstones 
  as 
  above 
  ... 
  .., 
  

  

  Ditto, 
  but 
  thicker-bedded 
  

  

  Ditto, 
  but 
  thinner-bedded 
  as 
  above 
  ... 
  ... 
  

  

  Shales 
  and 
  sandstones 
  

  

  475 
  

  

  

  

  4 
  

  

  

  

  172 
  

  

  

  

  475 
  

  

  

  

  43 
  

  

  

  

  52 
  

  

  

  

  154 
  

  

  

  

  5 
  

  

  

  

  319 
  

  

  

  

  25 
  

  

  

  

  129 
  

  

  

  

  344 
  

  

  

  

  103 
  

  

  

  12 
  

  

  

  

  6 
  

  

  

  

  26 
  

  

  

  

  1,221 
  

  

  976 
  

  

  f. 
  Pale 
  massive 
  sandstone, 
  gritty 
  and 
  in 
  parts 
  conglomeratic 
  

   Pale 
  gritty 
  sandstone 
  thin-bedded, 
  gray 
  and 
  creamy 
  

   Ditto 
  massive 
  

   Hard 
  gray 
  sandstone 
  ... 
  

  

  147 
  

  

  At 
  this 
  point 
  the 
  faulted 
  boundary 
  of 
  the 
  group 
  would 
  seem 
  to 
  

   come 
  in, 
  hut 
  it 
  is 
  not 
  very 
  clear, 
  and 
  may 
  in 
  reality 
  he 
  a 
  few 
  hundred 
  

   feet 
  higher.* 
  

  

  The 
  above 
  section 
  may 
  be 
  thus 
  epitomized 
  :— 
  

  

  Lower 
  Axials. 
  

  

  Shales 
  and 
  sandstone 
  (seen) 
  

  

  Uppeb 
  Axials. 
  

  

  a. 
  Cardita 
  shales 
  ... 
  ... 
  

  

  b. 
  Halobia 
  limestone, 
  shales, 
  &c. 
  

  

  c. 
  Freckled 
  grits, 
  &c. 
  

   d. 
  — 
  Shales 
  and 
  sandstones 
  

   e. 
  — 
  Ditto 
  ditto 
  ... 
  ... 
  

  

  • 
  / 
  — 
  Sandstones, 
  &c. 
  

  

  Ft. 
  

  

  In, 
  

  

  300 
  

  

  

  

  110 
  

  

  

  

  33 
  

  

  3 
  

  

  1,364 
  

  

  6 
  

  

  1,221 
  

  

  

  

  976 
  

  

  

  

  147 
  

  

  

  

  3,851 
  

  

  9 
  

  

  * 
  This 
  fault 
  was 
  also 
  remarked 
  by 
  my 
  colleague 
  Mr. 
  Fedden 
  in 
  his 
  notice 
  of 
  this 
  

   section, 
  but 
  his 
  account 
  does 
  not 
  enable 
  me 
  to 
  correlate 
  his 
  observations 
  with 
  my 
  own 
  with 
  

   any 
  great 
  closeness 
  ; 
  but 
  it 
  is 
  certain 
  that, 
  theoretical 
  considerations 
  apart, 
  my 
  colleague's 
  

   views 
  of 
  a 
  fault 
  crossing 
  the 
  section 
  here 
  tallied 
  with 
  my 
  own, 
  though 
  arrived 
  at 
  quite 
  in- 
  

   dependently 
  of 
  one 
  another. 
  

  

  ( 
  322 
  ) 
  

  

  