﻿JURASSIC 
  ROCKS 
  : 
  SRIPERMATOOR 
  AREA. 
  

  

  109 
  

  

  East 
  of 
  Omeallicherry 
  the 
  high 
  ground 
  consists 
  of 
  white 
  soil 
  

   derived 
  from 
  the 
  white 
  shaley 
  clays 
  before 
  alluded 
  to 
  ; 
  where 
  the 
  ground 
  

   begins 
  to 
  fall 
  to 
  the 
  north-east, 
  the 
  soil 
  is 
  more 
  mixed 
  with 
  lateritic 
  

   gravel 
  and 
  reddish 
  sand. 
  

  

  Much 
  of 
  the 
  country 
  was 
  at 
  the 
  time 
  of 
  my 
  visit 
  entirely 
  hidden 
  

   by 
  paddy 
  cultivation, 
  while 
  the 
  unusual 
  fulness 
  of 
  the 
  tanks 
  probably 
  

   obscured 
  many 
  good 
  sections. 
  Only 
  one 
  really 
  good 
  one 
  was 
  met 
  with 
  

   lying 
  about 
  a 
  mile 
  north-west 
  of 
  Omeallicherry 
  and 
  close 
  to 
  the 
  village 
  

   of 
  Vautumbaucum. 
  

  

  The 
  section 
  is 
  exposed 
  at 
  the 
  north 
  side 
  and 
  point 
  of 
  the 
  southern- 
  

   most 
  promontory 
  jutting 
  out 
  from 
  below 
  the 
  

   Vautumbaucum 
  section. 
  

  

  Oragidam 
  laterite 
  plateau. 
  The 
  headland 
  rises 
  

  

  about 
  30 
  feet 
  above 
  the 
  level 
  of 
  the 
  village 
  of 
  Vautumbaucum, 
  and 
  

   in 
  that 
  space 
  a 
  very 
  considerable 
  variety 
  of 
  beds 
  occur, 
  as 
  will 
  be 
  

   seen 
  by 
  the 
  following 
  list, 
  in 
  which 
  they 
  are 
  arranged 
  in 
  descending 
  

   order 
  : 
  — 
  

  

  Fig. 
  12. 
  — 
  Section 
  at 
  Vautumbaucum. 
  

  

  1. 
  Laterite 
  gravel 
  with 
  quartzite 
  pebbles 
  

  

  2. 
  White 
  sandy 
  clay 
  with 
  concretionary 
  lateritic 
  ironstone 
  

  

  3. 
  Coarse, 
  brown, 
  buff 
  and 
  whitish 
  friable 
  grit 
  with 
  shale 
  and 
  

  

  sandstone 
  partings 
  passing 
  downward 
  into 
  ... 
  

  

  4. 
  Sandstone, 
  brown 
  and 
  reddish-brown, 
  compact, 
  lateritoid 
  and 
  

  

  schistose... 
  

   ■5. 
  Sandstone, 
  buff, 
  very 
  fissile 
  and 
  shaley 
  

  

  Ft. 
  In. 
  Ft. 
  In. 
  

  

  2 
  to 
  4 
  

  

  2 
  to 
  3 
  

  

  3 
  to 
  4 
  

  

  8 
  to 
  12 
  

  

  2 
  to 
  2 
  4 
  

  

  ( 
  109 
  ) 
  

  

  