﻿JABALPUR 
  GROUP. 
  11 
  

  

  is 
  only 
  a 
  small 
  thickness, 
  under 
  200 
  feet, 
  of 
  sandstone 
  seen 
  beneath 
  the 
  

   covering- 
  trap. 
  Along 
  the 
  north-west 
  edge 
  of 
  the 
  area 
  the 
  strata 
  lie 
  

   against 
  a 
  broad 
  low 
  belt 
  of 
  metamorphics. 
  South 
  and 
  south-west 
  

   of 
  Srinagar 
  there 
  are 
  some 
  good 
  instances 
  of 
  outliers 
  and 
  projections 
  

   resting- 
  on 
  the 
  schist, 
  the 
  bottom 
  bed 
  being 
  of 
  a 
  character 
  that 
  

   is 
  very 
  general 
  whenever 
  it 
  is 
  found 
  so 
  placed. 
  It 
  is 
  a 
  compact 
  

   pseudo-quartzite, 
  coarse, 
  sometimes 
  conglomeritic, 
  and 
  with 
  an 
  excess 
  

   of 
  white 
  earthy 
  matrix 
  in 
  a 
  porcellanic 
  condition. 
  This 
  rock 
  is 
  found 
  

   at 
  many 
  places 
  through 
  the 
  station 
  of 
  Jabalpiir. 
  Very 
  rarely 
  it 
  is 
  

   calcareous, 
  quite 
  a 
  limestone, 
  as 
  in 
  the 
  stream 
  north-west 
  of 
  Ratomati, 
  

   one 
  mile 
  east 
  of 
  Srinagar. 
  ■ 
  

  

  In 
  this 
  neighbourhood 
  there 
  are 
  also 
  the 
  most 
  frequent 
  cases 
  known 
  

  

  . 
  t, 
  T 
  of 
  a 
  limestone, 
  not 
  a 
  bottom 
  rock, 
  within 
  the 
  

   Limestone 
  m 
  the 
  Ja- 
  

  

  balpur 
  group. 
  Jabalpiir 
  group. 
  There 
  is 
  an 
  outcrop 
  of 
  it 
  on 
  

  

  the 
  spur 
  south-south-west 
  of 
  Nagwara, 
  and 
  several 
  in 
  the 
  low 
  ground 
  

   south 
  of 
  Tendukhera. 
  It 
  is 
  important 
  to 
  draw 
  attention 
  to 
  this 
  

   rock, 
  as 
  there 
  is 
  great 
  risk 
  in 
  the 
  field 
  of 
  confounding 
  it 
  with 
  the 
  

   similar 
  limestone 
  of 
  the 
  Lameta, 
  or 
  infratrappean, 
  group. 
  Although 
  

   there 
  is 
  the 
  most 
  complete 
  unconformable 
  separation 
  between 
  the 
  

   two, 
  they 
  are 
  sometimes 
  found 
  in 
  parallel 
  horizontal 
  juxtaposition, 
  

   when 
  it 
  is 
  by 
  no 
  means 
  easy 
  to 
  distinguish 
  them. 
  There 
  is, 
  too, 
  

   the 
  awkward 
  coincidence 
  that 
  the 
  most 
  westerly 
  outliers 
  of 
  the 
  Lame- 
  

   tas, 
  at 
  Giirtala 
  and 
  Magni, 
  two 
  miles 
  ' 
  north-east 
  of 
  Srinagar, 
  occur 
  

   in 
  the 
  same 
  region 
  as 
  these 
  rare 
  limestones 
  of 
  the 
  Jabalpurs, 
  calling 
  

   for 
  very 
  clear 
  evidence 
  that 
  the 
  latter 
  do 
  truly 
  belong 
  to 
  the 
  older 
  

   formation. 
  There 
  is 
  a 
  slight 
  difference 
  between 
  the 
  two 
  limestones, 
  

   the 
  chert 
  in 
  the 
  Jabalpiir 
  rock 
  being 
  of 
  a 
  more 
  chalcedonic 
  type 
  ; 
  but 
  the 
  

   only 
  sure 
  criterion 
  is 
  in 
  the 
  associated 
  beds. 
  With 
  the 
  limestone 
  at 
  

   Magni 
  there 
  is 
  found, 
  round 
  the 
  base 
  of 
  Lutgaon 
  trap-hill, 
  the 
  friable 
  

   mottled 
  pale 
  green 
  and 
  purple 
  sand 
  characteristic 
  of 
  the 
  Lameta 
  group. 
  

   The 
  best 
  crucial 
  section 
  of 
  the 
  limestone 
  in 
  the 
  Jabalpurs 
  is 
  north-east 
  

  

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  143 
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