﻿LOWER 
  CRETACEOUS 
  SERIES 
  : 
  NIMRA 
  SANDSTONE. 
  31 
  

  

  the 
  rock 
  appears 
  to 
  be 
  a 
  trachyte. 
  A 
  mile 
  and 
  a 
  half 
  south 
  of 
  Galesar, 
  

   an 
  intrusion 
  of 
  the 
  same 
  rock 
  similarly 
  cuts 
  off 
  the 
  sedimentary 
  creta- 
  

   ceous 
  beds 
  of 
  the 
  Mohan 
  patch. 
  Thp 
  dykes, 
  especially 
  the 
  one 
  just 
  

   noticed, 
  send 
  off 
  sheets 
  in 
  every 
  direction. 
  The 
  trachyte 
  is 
  found 
  in 
  

   abundance 
  westward, 
  towards 
  Artia 
  and 
  Tarkachla 
  ; 
  and, 
  what 
  is 
  remark- 
  

   able, 
  between 
  Bilda 
  and 
  Bakaner, 
  among 
  the 
  unquestionably 
  basic 
  rocks 
  

   of 
  the 
  Deccan 
  trap 
  age. 
  These 
  latter 
  overlie 
  the 
  intermediate 
  igneous 
  

   rocks 
  in 
  such 
  a 
  manner 
  as 
  to 
  place 
  the 
  greater 
  antiquity 
  of 
  the 
  latter 
  

   beyond 
  reasonable 
  doubt. 
  This 
  affords 
  a 
  confirmation 
  of 
  the 
  law 
  re- 
  

   gulating 
  the 
  chemical 
  order 
  of 
  volcanic 
  outbursts. 
  

  

  North-east 
  of 
  Galesar 
  there 
  is 
  an 
  insignificant 
  dyke 
  of 
  a 
  basic 
  rock, 
  

   remarkable 
  as 
  the 
  only 
  one 
  of 
  the 
  kind 
  which 
  takes 
  a 
  north-south 
  direc- 
  

   tion. 
  East 
  and 
  south-east 
  there 
  are 
  ridges 
  of 
  trap, 
  very 
  likely 
  erupted 
  

   out 
  of 
  a 
  small 
  volcanic 
  centre 
  in 
  the 
  immediate 
  neighbourhood, 
  for 
  asso- 
  

   ciated 
  with 
  them 
  are 
  altered 
  cretaceous 
  rocks, 
  especially 
  towards 
  the 
  

   Kakanpur 
  end. 
  All 
  along 
  the 
  northern 
  boundary, 
  most 
  noticeably 
  

   between 
  Chapria 
  and 
  Junwaria 
  (depopulated), 
  there 
  were 
  found 
  quanti- 
  

   ties 
  of 
  similarly 
  altered 
  rocks 
  resting 
  upon 
  basalts, 
  so 
  often 
  mentioned 
  in 
  

   the 
  preceding 
  pages. 
  

  

  The 
  dips 
  which 
  are 
  at 
  places 
  very 
  well 
  seen 
  do 
  not 
  exceed 
  10°, 
  and 
  

   point 
  in 
  general 
  to 
  S.-20°-E. 
  

  

  3. 
  The 
  southern 
  inlier. 
  — 
  This 
  one, 
  too, 
  has 
  been 
  brought 
  up 
  by 
  what 
  

   look 
  like 
  faults, 
  of 
  which 
  the 
  northern 
  one 
  is 
  closely 
  parallel 
  to 
  those 
  

   bounding 
  the 
  two 
  preceding 
  inliers 
  in 
  the 
  same 
  direction. 
  

  

  The 
  lithology 
  and 
  mode 
  of 
  occurrence 
  of 
  some 
  of 
  the 
  beds 
  here 
  require 
  

   detailed 
  notice. 
  Just 
  south-west 
  of 
  Chikli 
  (B.) 
  there 
  is 
  a 
  ridge 
  of 
  

   a 
  hard, 
  white, 
  compact 
  calcareous 
  rock, 
  running 
  in 
  N.E.-S.W. 
  direc- 
  

   tion, 
  succeeded 
  to 
  the 
  north 
  by 
  yellowish 
  limestones, 
  which 
  from 
  their 
  

   fossils 
  (Bryozoa, 
  Gasteropoda, 
  Ammonites, 
  fyc.) 
  are 
  referable 
  to 
  the 
  

   nodular-limestone 
  horizon. 
  North 
  and 
  east 
  they 
  are 
  covered 
  up 
  by 
  

   the 
  Deccan 
  trap 
  rocks; 
  whereas 
  westward 
  they 
  appear 
  as 
  if 
  faulted 
  

   against 
  a 
  ridge 
  of 
  sandstone 
  elevated 
  about 
  300 
  feet 
  above 
  the 
  sur- 
  

   face. 
  Descending 
  from 
  this 
  ridge 
  at 
  Mongra 
  fossiliferous 
  limestones 
  

   similar 
  to 
  those 
  at 
  Chikli 
  are 
  met 
  with, 
  dipping 
  at 
  10° 
  to 
  N.-20°-W. 
  ; 
  

  

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  31 
  ) 
  

  

  