﻿JURASSIC 
  ROCKS: 
  PYANOOR 
  AREA. 
  97 
  

  

  conglomerate 
  is 
  not 
  shown 
  in 
  these 
  sections. 
  In 
  another 
  well 
  three 
  quar- 
  

   ters 
  of 
  a 
  mile 
  north-north-west 
  of 
  Tiruvatankadu 
  (Trevatangul 
  of 
  map) 
  , 
  

   the 
  same 
  sandstones 
  contain 
  thin 
  layers 
  of 
  broken 
  branches 
  and 
  twigs 
  

   of 
  silicified 
  wood 
  of 
  white 
  color 
  and 
  very 
  brittle, 
  identical 
  in 
  appear- 
  

   ance 
  with 
  the 
  fossil 
  wood 
  found 
  at 
  Ramanjeri. 
  

  

  Very 
  friable 
  micaceous 
  sandstones 
  are 
  exposed 
  in 
  a 
  new 
  well 
  imme- 
  

   diately 
  north 
  of 
  the 
  village 
  of 
  Tyloor 
  (Tydoor 
  of 
  

  

  Tyloor 
  section. 
  . 
  TT 
  . 
  , 
  

  

  map). 
  Here 
  two 
  fragmentary 
  specimens 
  were 
  

  

  found, 
  one 
  of 
  a 
  Palaozamia, 
  the 
  other 
  of 
  part 
  of 
  a 
  coniferous 
  tree, 
  and 
  

   with 
  them 
  two 
  distorted 
  and 
  unrecognizable 
  casts 
  of 
  conchiferous 
  bi- 
  

   valves. 
  Though 
  ill 
  preserved 
  and 
  obscured 
  from 
  the 
  coarse 
  and 
  friable 
  

   nature 
  of 
  the 
  matrix, 
  these 
  specimens 
  were 
  quite 
  sufficiently 
  clear 
  to 
  

   preclude 
  all 
  doubt 
  as 
  to 
  the 
  relative 
  age 
  of 
  the 
  rock 
  with 
  which 
  they 
  

   were 
  associated. 
  

  

  The 
  friable 
  sandstones 
  are 
  of 
  a 
  buny-brown 
  color, 
  (the 
  color 
  paler 
  

  

  where 
  the 
  rock 
  is 
  shaly) 
  and 
  have 
  an 
  easterly 
  dip 
  of 
  6° 
  to 
  8°. 
  Further 
  

  

  south, 
  sandstones 
  and 
  shales 
  of 
  identical 
  lithologic 
  

  

  character 
  occur 
  at 
  the 
  north 
  end 
  of 
  the 
  Waroor 
  

  

  tank. 
  A 
  quarter 
  of 
  a 
  mile 
  to 
  the 
  west, 
  these 
  beds 
  have 
  been 
  cut 
  through 
  

  

  in 
  digging 
  a 
  well 
  for 
  the 
  Railway 
  Inspector's 
  

  

  Chinnamapett 
  section. 
  . 
  , 
  ~, 
  . 
  , 
  , 
  . 
  , 
  . 
  

  

  bungalow 
  at 
  Uhmnamapett 
  station. 
  

  

  Indications 
  of 
  the 
  continuation 
  of 
  the 
  boulder-bed, 
  or 
  beds, 
  may 
  

  

  Syenitic 
  boulders 
  at 
  be 
  traCed 
  aU 
  r0Und 
  the 
  baSe 
  ° 
  f 
  the 
  ^^ 
  g 
  round 
  

   Pyanoor. 
  north 
  and 
  north-north-east 
  of 
  Pyanoor 
  by 
  the 
  

  

  presence 
  of 
  scattered 
  syenitic 
  boulders 
  weathered 
  out 
  of 
  the 
  friable 
  

  

  • 
  matrix, 
  especially 
  near 
  Narnaveram 
  (Naineveram 
  

  

  of 
  Atlas 
  Sheets), 
  where 
  masses 
  of 
  flaggy 
  syenite 
  of 
  

  

  whitish, 
  pink, 
  and 
  dark-red 
  color 
  are 
  very 
  numerous 
  on 
  the 
  surface 
  as 
  

  

  well 
  as 
  large 
  rounded 
  masses 
  of 
  quartzite, 
  although 
  very 
  large 
  quantities 
  

  

  of 
  the 
  former 
  have 
  been 
  trimmed 
  into 
  flags 
  and 
  largely 
  used 
  in 
  the 
  lining 
  

  

  N 
  ( 
  97 
  ) 
  

  

  