﻿52 
  FEDDEN 
  : 
  GEOLOGY 
  OP 
  KATH1AWAR 
  PENINSULA 
  IN 
  GUZERAT. 
  

  

  Another 
  set 
  of 
  beds, 
  occupying 
  the 
  higher 
  parts 
  of 
  southern 
  Oka 
  

   Limestones 
  variously 
  Mandal, 
  and 
  spreading 
  throughout 
  the 
  north, 
  con- 
  

   coloured. 
  s 
  - 
  s 
  t. 
  s 
  f 
  limestones 
  more 
  or 
  less 
  marly 
  and 
  arena- 
  

   ceous, 
  seldom 
  very 
  compact, 
  more 
  generally 
  porous 
  and 
  slightly 
  adhering 
  

   to 
  the 
  tongue 
  ; 
  they 
  occur 
  as 
  thick 
  flaggy 
  beds, 
  some 
  of 
  which 
  are 
  made 
  

   up 
  almost 
  entirely 
  of 
  small 
  organisms 
  (f 
  oraminif 
  era) 
  , 
  with 
  the 
  inter- 
  

   spaces 
  filled 
  with 
  crystalline 
  matter 
  (calcite). 
  In 
  colour 
  the 
  limestones 
  

   are 
  light 
  and 
  dark 
  buff, 
  very 
  pale 
  grey, 
  pinkish 
  yellow, 
  ochreous, 
  and 
  

   dark 
  yellowish-brown; 
  the 
  brown 
  bed 
  is 
  a 
  semi-crystalline 
  compact 
  

   rock 
  ; 
  it 
  occurs 
  in 
  the 
  neighbourhood 
  of 
  Dhenki 
  above 
  the 
  light-coloured 
  

   beds. 
  

  

  In 
  Beyt 
  Island, 
  and 
  along 
  the 
  northern 
  coast 
  of 
  Oka 
  Mandal, 
  light- 
  

   coloured 
  marly 
  clays, 
  and 
  finely 
  arenaceous 
  marlstones 
  prevail 
  ; 
  together 
  

   with 
  slightly 
  standy 
  limestone, 
  with 
  crystalline 
  texture 
  ; 
  and 
  a 
  calca- 
  

   reous 
  fine-grained 
  sandstone. 
  

  

  A 
  close 
  pale 
  buff 
  limestone, 
  more 
  or 
  less 
  marly 
  or 
  crystalline, 
  and 
  

   Limestones 
  and 
  marls 
  rather 
  arenaceous, 
  extends 
  over 
  the 
  surface 
  of 
  the 
  

   at 
  Positra 
  and 
  Mulwasar. 
  country 
  at 
  p 
  os 
  i 
  tra 
  in 
  the 
  north-east 
  corner 
  of 
  Oka 
  

   Mandal, 
  passing 
  down 
  into 
  soft 
  earthy 
  marls. 
  It 
  also 
  prevails 
  on 
  the 
  

   higher 
  parts 
  southwards, 
  to 
  beyond 
  Mulwasar, 
  where 
  the 
  limestone 
  is 
  

   seen 
  to 
  rest 
  upon 
  a 
  rubbly 
  bed 
  of 
  nodules 
  of 
  marlstone 
  in 
  soft 
  earthy 
  

   marl, 
  below 
  which 
  are 
  soft 
  clays 
  and 
  marls 
  varying 
  from 
  a 
  rich 
  yellow 
  to 
  

   a 
  pale-whitish 
  colour. 
  There 
  are 
  also 
  bands 
  of 
  fine 
  sandstone 
  and 
  sandy 
  

   limestone 
  among 
  the 
  lower 
  beds. 
  The 
  pale 
  buff 
  limestone 
  frequently 
  

   contains 
  hollow 
  casts 
  of 
  some 
  branching 
  coral, 
  or 
  bryozoon, 
  quite 
  in- 
  

   determinable, 
  as 
  the 
  cavities 
  are 
  lined 
  and 
  partially 
  filled 
  with 
  calcite, 
  

   which 
  has 
  obliterated 
  all 
  structure. 
  

  

  A 
  set 
  of 
  rocks, 
  seldom 
  met 
  with 
  at 
  any 
  great 
  distance 
  from 
  the 
  coast, 
  

  

  ■ 
  ', 
  . 
  . 
  , 
  and 
  which 
  I 
  have 
  tentatively 
  included 
  within 
  the 
  

  

  Coast-rnngmg 
  rocks. 
  

  

  upper 
  limit 
  of 
  the 
  present 
  group, 
  — 
  in 
  the 
  absence 
  

  

  of 
  distinct 
  evidence 
  to 
  the 
  contrary, 
  —may, 
  as 
  already 
  intimated, 
  be 
  even- 
  

   tually 
  regarded 
  as 
  of 
  post-pliocene 
  age. 
  These 
  may 
  be 
  designated 
  as 
  

   the 
  ' 
  coast-fringing 
  rocks/ 
  They 
  consist 
  of 
  porous, 
  open, 
  or 
  in 
  part 
  

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