﻿14 
  BOSE 
  : 
  GEOLOGY 
  OF 
  THE 
  LOWER 
  NARBADA 
  VALLEY. 
  

  

  south-south-east. 
  In 
  the 
  Barwai 
  patch 
  the 
  dip 
  is 
  remarkably 
  steady, 
  

   being 
  45° 
  to 
  50° 
  west, 
  or 
  west 
  with 
  a 
  little 
  southing. 
  

  

  Throughout 
  the 
  area 
  no 
  cleaved 
  rocks 
  are 
  met 
  with 
  in 
  the 
  series, 
  unless 
  

   we 
  take 
  the 
  chert 
  bands 
  in 
  the 
  limestone 
  when 
  vertical 
  to 
  represent 
  

   cleavage 
  — 
  a 
  supposition 
  which 
  in 
  this 
  area 
  does 
  not 
  seem 
  to 
  be 
  very 
  pro- 
  

   bable, 
  considering 
  that 
  the 
  verticality 
  is 
  far 
  from 
  persistent. 
  

  

  II. 
  — 
  Bag 
  Area. 
  

  

  The 
  Bijawars 
  in 
  this 
  area 
  have 
  been 
  let 
  down 
  by 
  faults. 
  Besides 
  

   the 
  two 
  faults 
  discovered 
  by 
  Mr. 
  Blanford, 
  describing 
  a 
  triangular 
  area 
  

   on 
  which 
  the 
  town 
  of 
  Bag 
  is 
  situated, 
  I 
  traced 
  two 
  others 
  further 
  east, 
  

   which 
  are 
  also 
  well 
  marked. 
  All 
  the 
  principal 
  members 
  of 
  the 
  series 
  

   in 
  the 
  area 
  have 
  been 
  fully 
  described 
  by 
  Mr. 
  Blanford, 
  and 
  need 
  no 
  

   repetition. 
  1 
  

  

  The 
  chert-banded 
  limestone 
  and 
  the 
  hornstone 
  breccia 
  of 
  the 
  Chand- 
  

   garh-Barwai 
  area 
  are 
  present; 
  but 
  the 
  quartzite 
  occurring 
  between 
  

   Handia 
  and 
  Juga 
  is 
  missed. 
  The 
  most 
  remarkable 
  rock 
  of 
  the 
  series, 
  

   however, 
  in 
  the 
  district 
  — 
  one 
  which 
  is 
  entirely 
  absent 
  in 
  the 
  eastern 
  

   basin 
  — 
  is 
  a 
  well-cleaved 
  clay 
  slate, 
  quite 
  good 
  enough 
  at 
  places 
  to 
  be 
  

   used 
  for 
  roofing 
  purposes. 
  It 
  sometimes 
  becomes 
  conglomeratic 
  by 
  

   the 
  presence 
  of 
  rolled 
  pebbles 
  of 
  quartzite, 
  which 
  were 
  observed 
  to 
  be 
  

   drawn 
  out 
  in 
  the 
  direction 
  of 
  the 
  cleavage. 
  The 
  strike 
  of 
  the 
  slates 
  is 
  

   most 
  remarkably 
  parallel 
  to 
  that 
  of 
  the 
  schists 
  in 
  the 
  metamorphics, 
  

   which 
  again, 
  as 
  has 
  been 
  remarked 
  already, 
  is 
  notably 
  constant 
  over 
  

   very 
  large 
  areas. 
  It 
  may 
  be 
  concluded 
  from 
  this 
  — 
  first, 
  that 
  the 
  

   foliation 
  planes 
  of 
  the 
  schists 
  are 
  planes 
  of 
  cleavages, 
  not 
  of 
  bedding 
  ; 
  

   and, 
  secondly, 
  that 
  the 
  disturbance 
  causing 
  this 
  cleavage 
  took 
  place, 
  

   at 
  least 
  in 
  the 
  Bag 
  area, 
  where 
  the 
  cleavage 
  -strike 
  of 
  the 
  Bijawars 
  is 
  

   clearly 
  parallel 
  to 
  the 
  foliation-strike 
  of 
  the 
  metamorphics, 
  in 
  post- 
  

   Bijawar 
  times. 
  2 
  

  

  1 
  Memoirs, 
  Vol. 
  VI, 
  pt. 
  3, 
  pp. 
  35, 
  137, 
  140. 
  A 
  summary 
  is 
  given 
  at 
  pp. 
  45-46 
  of 
  the 
  

   " 
  Manual." 
  

  

  2 
  For 
  a 
  short 
  discussion 
  on 
  this 
  subject, 
  see 
  " 
  Manual," 
  pp. 
  31-32. 
  

  

  ( 
  i-i- 
  ) 
  

  

  