﻿24 
  MEDLICOTT 
  : 
  SATPURA 
  COAL-BASIN. 
  

  

  the 
  basin. 
  A 
  leading 
  fact 
  in 
  this 
  discussion 
  has 
  already 
  been 
  given, 
  

   when 
  it 
  was 
  shown 
  that 
  the 
  northern 
  boundary 
  of 
  the 
  basin 
  is 
  not 
  a 
  

   fault, 
  but 
  an 
  edge 
  of 
  deposition 
  more 
  or 
  less 
  steeply 
  shelving 
  : 
  along 
  that 
  

   edge 
  there 
  is 
  no 
  outcrop 
  of 
  the 
  Pachmari 
  group 
  ; 
  it 
  has 
  been 
  throughout 
  

   overlapped 
  by 
  the 
  younger 
  deposits. 
  The 
  massive 
  banked 
  structure 
  of 
  

   the 
  Pachmari 
  sandstone 
  lends 
  itself 
  readily 
  to 
  this 
  supposition 
  of 
  a 
  

   rapid 
  dying 
  out 
  to 
  the 
  deep. 
  There 
  is, 
  however, 
  some 
  direct 
  confirma- 
  

   tion 
  of 
  these 
  inferences. 
  At 
  some 
  three 
  miles 
  to 
  the 
  east 
  of 
  the 
  Tawa 
  

   there 
  is 
  a 
  broad 
  area 
  of 
  special 
  disturbance, 
  where 
  the 
  steady 
  scarped 
  

   ridge 
  of 
  the 
  Pachmari 
  sandstone 
  is 
  quite 
  broken 
  up. 
  Local 
  wedge-like 
  

   ridges 
  of 
  rock 
  occur 
  irregularly 
  in 
  the 
  position 
  of 
  the 
  ridge, 
  trap 
  being 
  

   profusely 
  protruded 
  between 
  them 
  ; 
  but 
  at 
  many 
  places, 
  on 
  all 
  sides 
  of 
  

   these 
  remnants 
  of 
  the 
  sandstone, 
  one 
  finds 
  thick 
  beds 
  of 
  pale, 
  greenish, 
  

   yellow 
  and 
  bright 
  red 
  clays, 
  exactly 
  like 
  those 
  of 
  the 
  Denwa 
  group. 
  

   The 
  relation 
  of 
  these 
  to 
  the 
  sandstone 
  is 
  better 
  seen 
  a 
  little 
  to 
  the 
  east, 
  

   where 
  the 
  disturbance 
  is 
  not 
  so 
  great, 
  in 
  the 
  deeply 
  cut 
  valleys 
  on 
  the 
  

   north 
  of 
  the 
  range, 
  west 
  of 
  the 
  Sonbudra. 
  In 
  the 
  bottom 
  of 
  the 
  

   longitudinal 
  valleys 
  one 
  finds 
  the 
  clays 
  in 
  force 
  ; 
  and 
  in 
  the 
  cliffed 
  end 
  of 
  

   the 
  valley 
  these 
  bands 
  are 
  seen 
  dying 
  out 
  on 
  the 
  rise, 
  the 
  sandstone 
  that 
  

   overlies 
  them 
  below 
  passing 
  up 
  into 
  an 
  unbroken 
  transverse 
  ridge 
  of 
  the 
  

   Pachmari 
  rock. 
  Thus 
  it 
  would 
  seem 
  that 
  at 
  no 
  great 
  depth 
  from 
  the 
  

   actual 
  northern 
  base 
  of 
  the 
  range, 
  the 
  layers 
  of 
  the 
  saudstone-baud 
  die 
  

   out 
  between 
  clay 
  beds, 
  being 
  there 
  transitionally 
  blended 
  with 
  the 
  base 
  

   of 
  the 
  Denwa 
  group. 
  It 
  is 
  thus 
  possible 
  that 
  some 
  of 
  the 
  beds 
  of 
  red 
  

   and 
  pale 
  greenish 
  brown 
  clays 
  mentioned 
  as 
  appearing 
  at 
  the 
  main 
  

   boundary 
  west 
  of 
  Anhoni, 
  may 
  be 
  on 
  the 
  Pachmari 
  horizon 
  ; 
  but 
  it 
  is 
  far 
  

   more 
  likely 
  that 
  they 
  are 
  upper 
  beds 
  belonging 
  to 
  the 
  Denwa 
  group. 
  

  

  The 
  longitudinal 
  extension 
  of 
  the 
  group 
  is 
  also 
  a 
  question 
  of 
  strati- 
  

   graphical 
  interest 
  ; 
  and 
  the 
  case 
  is 
  pretty 
  clear 
  fru- 
  

   its 
  extinction 
  westwards. 
  .. 
  

  

  the 
  west 
  end 
  of 
  the 
  field. 
  A 
  few 
  miles 
  west 
  of 
  

  

  the 
  Tawa, 
  where 
  the 
  Hosungabad 
  and 
  Betul 
  road 
  enters 
  upon 
  the 
  Tawa 
  

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  ) 
  

  

  