﻿JURASSIC 
  ROCKS 
  : 
  SRIPERMATOOR 
  AREA. 
  Ill 
  

  

  kottei 
  and 
  Sripermatoor 
  series, 
  but 
  the 
  strong- 
  probability 
  is, 
  that 
  they 
  

   (the 
  Vautumbaucum 
  beds) 
  are 
  younger 
  than 
  the 
  typical 
  Sripermatoor 
  

   shales 
  occurring 
  at 
  Vellaur, 
  Eraur, 
  Alagur, 
  and 
  Vellarei. 
  

  

  The 
  beds 
  forming 
  the 
  Vautumbaucum 
  series 
  appear 
  to 
  be 
  underlaid 
  

   by 
  blackish 
  grey 
  clays 
  of 
  which 
  great 
  part 
  of 
  the 
  Vautumbaucum 
  tank- 
  

   bund 
  is 
  made. 
  The 
  bund 
  is 
  built 
  of 
  clay 
  taken 
  from 
  the 
  surface 
  of 
  

   the 
  fields 
  below 
  it, 
  which 
  are 
  situated 
  at 
  a 
  considerably 
  lower 
  level 
  than 
  

   the 
  base 
  of 
  the 
  section 
  on 
  the 
  headland. 
  

  

  Similar 
  clays 
  occur 
  in 
  the 
  bottom 
  of 
  the 
  Naralur 
  tank 
  which 
  is 
  

   situated 
  on 
  very 
  low 
  ground. 
  

  

  The 
  idea 
  of 
  the 
  infra-position 
  of 
  the 
  blackish 
  clays 
  is 
  strengthened 
  

   by 
  the 
  fact, 
  that 
  where 
  the 
  ground 
  begins 
  to 
  rise 
  again 
  at 
  the 
  north 
  

   end 
  of 
  the 
  tank, 
  yellowish 
  sandy 
  clays 
  and 
  clayey 
  sands 
  immediately 
  

   appear, 
  and 
  occupy 
  the 
  water-shed 
  to 
  the 
  north-west 
  and 
  east 
  of 
  the 
  

   village 
  of 
  Vanjeri. 
  

  

  About 
  2 
  miles 
  to 
  the 
  south-east 
  of 
  the 
  latter 
  place, 
  a 
  small 
  extent 
  

   of 
  pale 
  brick 
  red 
  sandstones 
  is 
  exposed 
  in 
  the 
  

  

  Orattur 
  Nullah 
  Section. 
  

  

  bed 
  of 
  the 
  nullah 
  formed 
  by 
  the 
  junction 
  of 
  the 
  

  

  muddagoo* 
  of 
  the 
  Orattur 
  tank 
  with 
  the 
  surplus 
  waters 
  of 
  the 
  

  

  Naralur 
  and 
  other 
  tanks. 
  

  

  Under 
  these 
  sandstones, 
  which 
  have 
  a 
  westerly 
  dip, 
  is 
  a 
  bed 
  of 
  

  

  drab 
  colored 
  sandy 
  clays 
  and 
  clayey 
  sandstones 
  containing 
  scattered 
  

  

  boulders 
  of 
  gneiss 
  — 
  some 
  large 
  enough 
  to 
  weigh 
  2 
  or 
  3 
  cwt. 
  There 
  can 
  

  

  be 
  little 
  or 
  no 
  doubt 
  that 
  these 
  beds 
  are 
  an 
  out- 
  

   Boulder-bed. 
  

  

  crop 
  of 
  some 
  part 
  of 
  the 
  Vautumbaucum 
  series, 
  

  

  although 
  no 
  fossils 
  of 
  any 
  description 
  were 
  found 
  here. 
  

  

  * 
  Muddagoo 
  is 
  the 
  native 
  name 
  for 
  the 
  course 
  of 
  the 
  stream 
  flowing 
  from 
  the 
  

   Kalingula 
  or 
  waste 
  weir 
  of 
  a 
  tank 
  — 
  which, 
  as 
  a 
  rule, 
  flows 
  from 
  a 
  point 
  near 
  one 
  or 
  

   other 
  end 
  of 
  the 
  bund, 
  and 
  very 
  rarely 
  coincides 
  with 
  the 
  original 
  stream. 
  Some 
  large 
  

   tanks 
  have 
  more 
  than 
  one 
  muddagoo. 
  

  

  ( 
  HI 
  ) 
  

  

  