﻿THE 
  LATERITIC 
  FORMATIONS. 
  35 
  

  

  Sattavedu, 
  at 
  Seervedu 
  (Seerwaydoo), 
  at 
  Amerambode 
  (Amerumbardoo 
  

   of 
  map) 
  very 
  largely. 
  

  

  The 
  whole 
  of 
  the 
  high 
  ground 
  north 
  of 
  the 
  last 
  village 
  is 
  covered 
  

   with 
  generally 
  massive 
  laterite. 
  The 
  village 
  of 
  Maderapaucum 
  stands 
  

   on 
  a 
  large 
  spread 
  of 
  very 
  dark 
  laterite 
  rock. 
  Very 
  large 
  sheets 
  of 
  

   it 
  may 
  be 
  seen 
  protruding 
  over 
  the 
  surface 
  all 
  round 
  Pauudavaucum 
  

   and 
  again 
  at 
  Cunnumbaucum. 
  To 
  the 
  south-south-east 
  and 
  east 
  

   of 
  Amerumbode 
  the 
  massive 
  laterite 
  occurs 
  largely 
  at 
  Colanur, 
  Pulloor, 
  

   and 
  thence 
  along 
  the 
  high 
  ground 
  to 
  Ingawarpolliam, 
  where 
  it 
  forms 
  a 
  

   spread 
  nearly 
  two 
  miles 
  in 
  width, 
  and 
  passes 
  eastward 
  into 
  the 
  gritty 
  or 
  

   clayey 
  variety, 
  which 
  extends 
  several 
  miles 
  further 
  eastward, 
  and 
  then 
  

   itself 
  passes 
  into 
  sands 
  mixed 
  with 
  lateritic 
  pellets. 
  

  

  A 
  very 
  interesting 
  outlier 
  of 
  the 
  Red 
  Hills 
  typical 
  laterite 
  lies 
  

  

  about 
  two 
  miles 
  north-north-west 
  of 
  Yermoota- 
  

   Manjakaranei 
  outlier. 
  

  

  polliam, 
  where 
  the 
  Corteliar 
  river 
  trends 
  north 
  

  

  prior 
  to 
  crossing 
  the 
  Madras 
  — 
  Nellore 
  high 
  road. 
  The 
  outlier 
  consists 
  

  

  of 
  a 
  small 
  tabular 
  hill 
  steeply 
  scarped 
  on 
  all 
  sides 
  but 
  the 
  east 
  ; 
  it 
  

  

  is 
  close 
  to 
  the 
  village 
  of 
  Manjakaranei 
  and 
  above 
  50 
  feet 
  high 
  

  

  above 
  the 
  alluvium. 
  The 
  summit 
  of 
  the 
  hill 
  is 
  composed 
  of 
  typical 
  

  

  laterite, 
  with 
  numerous 
  included 
  fragments 
  of 
  quartzite, 
  passing 
  

  

  down 
  into 
  vermicularly 
  cellular 
  rather 
  clayey 
  grits 
  with 
  a 
  few 
  lateritic 
  

  

  lumps. 
  These 
  again 
  appear 
  to 
  graduate 
  into 
  

   Cuddalore 
  grits. 
  

  

  coarse, 
  mottled, 
  and 
  rather 
  friable 
  grits, 
  which 
  

  

  become 
  increasingly 
  white 
  and 
  pure 
  as 
  they 
  descend. 
  The 
  grits 
  contain 
  

  

  no 
  fragments 
  of 
  quartzite. 
  Several 
  stone 
  implements 
  of 
  not 
  very 
  good 
  

  

  workmanship 
  were 
  picked 
  up 
  at 
  the 
  foot 
  of 
  the 
  hill 
  in 
  the 
  laterite 
  debris, 
  

  

  and 
  one 
  in 
  a 
  little 
  rain-gully 
  on 
  the 
  west 
  side 
  of 
  the 
  hill 
  just 
  below 
  the 
  

  

  top. 
  These 
  had 
  evidently 
  been 
  weathered 
  out 
  of 
  the 
  massive 
  laterite 
  and 
  

  

  had 
  fallen 
  down. 
  

  

  It 
  has 
  already 
  been 
  pointed 
  out 
  that 
  the 
  greater 
  part 
  of 
  the 
  lateritic 
  

  

  formations 
  are 
  of 
  less 
  compact 
  character 
  than 
  the 
  conglomerates 
  just 
  

  

  ( 
  35 
  ) 
  

  

  