﻿JURASSIC 
  ROCKS 
  : 
  SATTAVEDU 
  AREA. 
  71 
  

  

  At 
  the 
  south 
  end 
  of 
  the 
  ridge 
  are 
  some 
  small 
  quarries, 
  which 
  have 
  been 
  

  

  opened 
  for 
  the 
  sake 
  of 
  getting 
  at 
  the 
  sandstones. 
  

   Sirgulpilly 
  section. 
  

  

  In 
  one 
  of 
  these, 
  on 
  the 
  east 
  side 
  of 
  the 
  ridge, 
  

   Mr. 
  King 
  found 
  dark, 
  purple, 
  coarse 
  friable 
  sandstones, 
  out 
  of 
  which 
  long 
  

   troughs 
  were 
  being 
  cut. 
  On 
  the 
  west 
  side 
  of 
  the 
  ridge 
  are 
  white 
  and 
  

   grey, 
  and 
  white 
  and 
  purple, 
  mottled, 
  sandstones 
  with 
  ferruginous 
  and 
  

   jaspery 
  concretions. 
  

  

  The 
  general 
  dip 
  of 
  the 
  beds 
  over 
  these 
  two 
  ridges 
  is 
  from 
  10° 
  — 
  20° 
  

   east. 
  

  

  Of 
  the 
  intercalated 
  beds 
  of 
  sandstone 
  mentioned 
  above 
  (p. 
  68), 
  

  

  only 
  one 
  is 
  seen 
  on 
  the 
  east 
  side 
  of 
  the 
  Sattavedu 
  

   Sattavedu 
  section. 
  

  

  hills, 
  about 
  a 
  mile 
  south-east 
  of 
  the 
  village 
  of 
  

  

  Sattavedu, 
  where 
  compact, 
  greyish, 
  buffy, 
  or 
  reddish 
  sandstones 
  appear, 
  and 
  

  

  Pig. 
  4.— 
  Section 
  near 
  Sattavedu. 
  

   1, 
  Red 
  soil; 
  2, 
  Lateritic 
  conglomerate; 
  3, 
  Sandstone. 
  

  

  are 
  exposed 
  in 
  a 
  small 
  quarry 
  a 
  few 
  score 
  yards 
  off 
  the 
  new 
  high 
  road. 
  

   The 
  sandstones, 
  which 
  are 
  thin 
  -bedded 
  and 
  contain 
  numerous 
  irregular 
  

   calcareous 
  laminae, 
  dip 
  south 
  by 
  east 
  at 
  an 
  angle 
  of 
  about 
  7° 
  — 
  10° 
  (?). 
  

  

  The 
  annexed 
  rough 
  sketch 
  shows 
  one 
  side 
  of 
  one 
  of 
  the 
  small 
  pits 
  

   made 
  to 
  quarry 
  the 
  stone 
  for 
  building 
  and 
  other 
  domestic 
  purposes, 
  for 
  

   which 
  it 
  seems 
  very 
  well 
  adapted. 
  Only 
  a 
  few 
  extremely 
  obscure 
  and 
  

   doubtful 
  traces 
  of 
  fossil 
  plants 
  were 
  observed 
  in 
  one 
  block 
  of 
  the 
  sand- 
  

   stone. 
  

  

  ( 
  71 
  ) 
  

  

  