﻿84 
  FOOTE 
  : 
  GEOLOGY 
  OF 
  HABEAS. 
  

  

  d. 
  Very 
  coarse 
  shingle 
  of 
  quartzite 
  and 
  syenite 
  in 
  a 
  soft 
  gritty 
  

  

  matrix 
  ... 
  • 
  ... 
  ... 
  ... 
  ... 
  18 
  to 
  20 
  

  

  e. 
  g. 
  Pine 
  drab-brown 
  friable 
  sandstones 
  with 
  one 
  small 
  bed 
  (8 
  to 
  10 
  

  

  inches) 
  of 
  quartzite 
  and 
  syenite 
  pebbles 
  near 
  the 
  top 
  (/) 
  ? 
  ... 
  20 
  to 
  25 
  

   only 
  the 
  upper 
  part 
  of 
  g 
  is 
  shown 
  in 
  sketch. 
  

  

  Below 
  tins 
  in 
  the 
  lower 
  part 
  of 
  the 
  gully 
  the 
  detritus 
  is 
  not 
  cut 
  through. 
  

   The 
  beds 
  dip 
  north-north-west 
  at 
  an 
  angle 
  of 
  25° 
  to 
  30°. 
  No 
  fossils 
  

   were 
  seen 
  in 
  any 
  of 
  these 
  beds. 
  

  

  If 
  the 
  side 
  of 
  the 
  hill 
  be 
  followed 
  still 
  for 
  a 
  few 
  hundred 
  yards 
  fur- 
  

   ni 
  . 
  , 
  , 
  „. 
  ther 
  south, 
  another 
  rain-gully 
  will 
  be 
  found 
  close 
  

  

  Chmnareddypolliam 
  ' 
  is 
  J 
  

  

  sectl0n 
  - 
  to 
  the 
  great 
  quartzite 
  rock 
  at 
  Chmnareddypol- 
  

  

  liam. 
  The 
  superficial 
  layer 
  of 
  debris 
  is 
  hardly 
  penetrated, 
  and 
  when 
  seen 
  

   by 
  me, 
  only 
  2 
  or 
  3 
  square 
  feet 
  were 
  clear, 
  and 
  showed 
  tremendously 
  coarse 
  

   quartzite 
  shingle 
  in 
  a 
  soft 
  matrix 
  of 
  grey 
  clay 
  containing 
  much 
  granitic 
  

   grit. 
  The 
  loose 
  masses 
  in 
  the 
  gully 
  are 
  of 
  very 
  large 
  size, 
  many 
  weigh- 
  

   ing 
  2 
  to 
  3 
  cwt. 
  and 
  perfectly 
  rounded. 
  

  

  Eastward 
  of 
  the 
  ridge 
  on 
  which 
  the 
  three 
  last 
  described 
  sections 
  

   occur, 
  only 
  a 
  single 
  one 
  was 
  found 
  on 
  the 
  slope 
  of 
  

   the 
  Naikenpolliam 
  hills. 
  This 
  solitary 
  section 
  

   occurs 
  on 
  the 
  south 
  side 
  of 
  the 
  head 
  of 
  the 
  south 
  fork 
  of 
  the 
  Mally- 
  

   reddypolliam 
  nullah, 
  and 
  only 
  about 
  half 
  a 
  mile 
  eastward 
  of 
  the 
  first 
  

   section 
  in 
  the 
  Naikenpolliam 
  valley. 
  The 
  rocks 
  exposed 
  in 
  the 
  south 
  

   ridge 
  section 
  are 
  cut 
  into 
  to 
  a 
  depth 
  of 
  nearly 
  4 
  feet, 
  and 
  are 
  seen 
  to 
  

   consist 
  of 
  a 
  bed 
  of 
  rather 
  small 
  pebbles 
  included 
  in 
  a 
  friable 
  sandy 
  grit, 
  

   of 
  huffish-brown 
  color, 
  but 
  mottled 
  with 
  white 
  where 
  felspathic 
  debris 
  is 
  

   abundant. 
  Excepting 
  the 
  quartzite 
  pebbles 
  all 
  the 
  materials 
  are 
  of 
  

   granitic 
  origin. 
  The 
  bedding 
  which 
  is 
  indistinct 
  shows 
  a 
  northerly 
  dip 
  

   of 
  15° 
  to 
  20°. 
  The 
  superficial 
  debris 
  is 
  here 
  only 
  a 
  yard 
  thick, 
  but 
  on 
  the 
  

   north 
  side 
  of 
  the 
  north 
  fork 
  of 
  the 
  nullahs 
  it 
  is 
  upwards 
  of 
  8 
  feet 
  in 
  

   depth. 
  

  

  From 
  the 
  position 
  of 
  the 
  Naikenpolliam 
  ridge 
  relative 
  to 
  the 
  hills 
  

   north 
  of 
  Alicoor, 
  it 
  might 
  be 
  expected 
  that 
  the 
  compact 
  conglomerate 
  

  

  ( 
  84 
  ) 
  

  

  