﻿124 
  F00TE 
  : 
  GEOLOGY 
  OF 
  MADRAS. 
  

  

  Unlike 
  the 
  Rajmahal 
  beds 
  in 
  Bengal 
  which 
  have 
  great 
  flows 
  of 
  

   trap 
  intercalated 
  or 
  intruded 
  between 
  the 
  sedimentary 
  rocks, 
  and 
  the 
  

   Cutch 
  beds 
  which 
  are 
  overlaid 
  by 
  trap 
  flows 
  of 
  (?) 
  tertiary 
  age, 
  the 
  

   Madras 
  series 
  is 
  nowhere 
  penetrated, 
  or 
  overlaid, 
  by 
  igneous 
  rocks 
  of 
  any 
  

   kind, 
  nor 
  in 
  the 
  least 
  degree 
  metamorphosed. 
  

  

  Of 
  less 
  importance 
  is 
  the 
  contrast 
  in 
  color 
  of 
  the 
  component 
  rocks 
  ; 
  

   the 
  Madras 
  beds, 
  unlike 
  those 
  of 
  Cutch, 
  which 
  are 
  often 
  of 
  very 
  gay 
  

   and 
  bright 
  colors, 
  are 
  with 
  very 
  few 
  exceptions 
  of 
  dull 
  and 
  sober 
  colour, 
  

   a 
  remark 
  which 
  applies 
  also 
  to 
  their 
  representatives 
  in 
  the 
  Trichinopoly 
  

   and 
  Nellore 
  districts. 
  

  

  ( 
  ^ 
  ) 
  

  

  