﻿80 
  F00TE 
  : 
  GEOLOGY 
  OE 
  MADRAS. 
  

  

  circumference 
  at 
  the 
  base. 
  The 
  dip 
  of 
  the 
  bedding 
  is 
  vertical, 
  the 
  

   strike 
  nearly 
  north 
  and 
  south 
  ; 
  it 
  has, 
  therefore, 
  evidently 
  been 
  moved 
  

   from 
  its 
  original 
  position, 
  but 
  here, 
  as 
  in 
  all 
  the 
  other 
  cases, 
  the 
  

   base 
  is 
  concealed 
  by 
  the 
  quartzite 
  shingle 
  debris, 
  and 
  it 
  is 
  impossible 
  

   to 
  tell 
  what 
  the 
  mass 
  may 
  be 
  resting 
  upon. 
  

  

  The 
  included 
  pebbles 
  of 
  the 
  conglomeratic 
  bands 
  in 
  this 
  huge 
  

   block 
  consist 
  of 
  quartzite, 
  quartz, 
  and 
  red 
  and 
  black 
  jasper, 
  with 
  a 
  few 
  

   examples 
  of 
  red 
  felspathic 
  and 
  yellow 
  syenite 
  with 
  much 
  pistacite. 
  

   On 
  the 
  east 
  side 
  of 
  the 
  hill 
  above 
  this 
  block 
  others 
  of 
  similar 
  quartzite 
  

   occur, 
  not 
  very 
  rarely, 
  but 
  higher 
  on 
  the 
  slope. 
  From 
  a 
  little 
  distance 
  

   these 
  appear 
  to 
  belong 
  to 
  the 
  outcrop 
  of 
  a 
  bed 
  dipping 
  north 
  or 
  north 
  

   by 
  west 
  ; 
  several 
  huge 
  masses 
  have 
  that 
  dip, 
  but 
  others 
  equally 
  large 
  

   are 
  dipping 
  in 
  every 
  possible 
  direction. 
  

  

  The 
  last 
  mass 
  of 
  quartzite 
  of 
  extraordinary 
  size 
  was 
  observed 
  

  

  about 
  a 
  mile 
  north-west 
  by 
  north 
  of 
  Woter- 
  

  

  Woterpolliam 
  block. 
  . 
  „ 
  .. 
  

  

  polliam 
  at 
  the 
  south 
  side 
  ot 
  the 
  valley 
  running 
  

  

  up 
  into 
  the 
  central 
  parts 
  of 
  the 
  Naikenpolliam 
  hills. 
  It 
  is 
  of 
  larger 
  

  

  size 
  than 
  any 
  of 
  the 
  foregoing, 
  and 
  perched 
  up 
  so 
  that 
  the 
  dip 
  of 
  its 
  

  

  bedding 
  is 
  nearly 
  vertical. 
  

  

  If 
  these 
  huge 
  masses 
  be 
  really 
  the 
  ruins 
  of 
  quartzite 
  beds 
  pre- 
  

   existing 
  on 
  those 
  spots, 
  it 
  is 
  very 
  easy 
  to 
  corn- 
  

   ice 
  theory. 
  prehend 
  their 
  present 
  positions 
  ; 
  but 
  if 
  they 
  have 
  

   been 
  brought 
  there 
  from 
  distant 
  points, 
  no 
  mechanical 
  power 
  saving 
  

   that 
  of 
  floating 
  ice 
  would 
  appear 
  sufficient 
  to 
  have 
  transported 
  them 
  

   from 
  distances 
  of 
  many 
  miles. 
  

  

  The 
  supposition, 
  however, 
  that 
  these 
  blocks 
  have 
  been 
  brought 
  by 
  

  

  floating 
  ice 
  seems 
  inadmissible 
  in 
  presence 
  of 
  the 
  

  

  Ice 
  theory 
  inapplica- 
  ° 
  

  

  hie. 
  vel 
  y 
  mild, 
  if 
  not 
  tropical, 
  climate 
  indicated 
  by 
  

  

  the 
  fossil 
  remains 
  of 
  Palaozamire 
  found 
  imbedded 
  in 
  some 
  of 
  the 
  lowest 
  

   beds 
  of 
  the 
  Rajmahal 
  formation. 
  

   ( 
  80 
  ) 
  

  

  