﻿29 
  

  

  Section 
  7. 
  — 
  (/). 
  The 
  Motur 
  horizon. 
  

   In 
  the 
  descending 
  section 
  on 
  the 
  central 
  line 
  ; 
  highly 
  coloured 
  clays 
  

   Its 
  character 
  in 
  Gen- 
  become 
  frequent 
  in 
  the 
  Motur 
  horizon. 
  There 
  is 
  

   tral 
  region. 
  a 
  ^j^ 
  band. 
  f 
  rec 
  j 
  mottled 
  clay 
  in 
  the 
  river 
  near 
  

  

  Bichberi. 
  Again, 
  in 
  the 
  deep 
  valley 
  in 
  the 
  Motur 
  ridge, 
  under 
  Gorah 
  

   village, 
  there 
  is 
  a 
  15-feet 
  bed 
  of 
  red 
  and. 
  greenish 
  brown 
  clay, 
  dip 
  

   10° 
  to 
  north. 
  Higher 
  up, 
  on 
  left 
  bank 
  of 
  stream, 
  a 
  2-feet 
  bed. 
  of 
  

   carbonaceous 
  shale 
  with 
  obscure 
  fossils, 
  rests 
  upon 
  a 
  thick 
  mass 
  of 
  green- 
  

   ish 
  brown 
  clay, 
  all 
  dipping 
  at 
  15° 
  to 
  north. 
  The 
  reverse 
  dip 
  of 
  the 
  

   Motur 
  anticlinal 
  occurs 
  a 
  little 
  to 
  the 
  south 
  of 
  Gorah, 
  and 
  lasts 
  to 
  

   near 
  Kangla, 
  the 
  northerly 
  dip 
  being 
  again 
  steady 
  from 
  Kaugla 
  to 
  

   near 
  the 
  boundary 
  ; 
  red 
  clays 
  appearing 
  frequently 
  between 
  the 
  bands 
  

   of 
  sandstone. 
  

  

  To 
  east 
  of 
  the 
  main 
  section, 
  in 
  the 
  Pench 
  valley, 
  these 
  red 
  clays 
  are 
  

  

  Red 
  clays 
  predominate 
  in 
  g 
  reat 
  force 
  immediately 
  overlying 
  the 
  coal-mea- 
  

   sures 
  (k) 
  ; 
  both 
  groups 
  passing, 
  along 
  the 
  strike, 
  

   under 
  the 
  trap. 
  On 
  the 
  central 
  section 
  the 
  coal-measures 
  seem 
  to 
  be 
  

   overlapped; 
  at 
  least, 
  they 
  were 
  not 
  observed. 
  The 
  Talchirs, 
  however, 
  

   are 
  well 
  exposed, 
  much 
  crushed 
  near 
  the 
  boundary, 
  but 
  soon 
  steadying 
  

   to 
  the 
  northerly 
  dip. 
  

  

  The 
  western 
  extension 
  of 
  the 
  Motur 
  rocks 
  presents 
  the 
  same 
  difficul- 
  

  

  Obscure 
  characters 
  to 
  tieS 
  aS 
  that 
  ° 
  f 
  the 
  Bi 
  J 
  0ri 
  set 
  « 
  In 
  the 
  flat 
  S 
  round 
  

   westwards. 
  f 
  ^ 
  e 
  U 
  pp 
  er 
  Tawa 
  valley 
  the 
  coal-measures 
  are 
  

  

  overlaid 
  by 
  an 
  immense 
  thickness 
  of 
  sandstone, 
  with 
  very 
  rare 
  earthy 
  

  

  partings 
  ; 
  still 
  the 
  northerly 
  dip 
  is 
  steady, 
  on 
  the 
  strike 
  of 
  the 
  Motur 
  

  

  band, 
  and 
  it 
  is 
  presumable 
  that 
  the 
  petrological 
  differences 
  are 
  only 
  

  

  local 
  variations 
  of 
  cotemporaneous 
  deposits. 
  

  

  ( 
  161 
  ) 
  

  

  