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  THEOBALD 
  : 
  GEOLOGY 
  OF 
  PEGU. 
  

  

  Satwa, 
  a 
  little 
  boss 
  of 
  limestone 
  which 
  may 
  belong 
  to 
  this 
  bed 
  is 
  ex- 
  

   posed 
  in 
  the 
  jungles, 
  and 
  is 
  used 
  for 
  lime 
  by 
  the 
  villagers 
  in 
  the 
  neigh- 
  

   bourhood. 
  This 
  rock 
  is 
  a 
  white 
  and 
  somewhat 
  argillaceous 
  rock, 
  not 
  

   well 
  seen, 
  but 
  with 
  an 
  apparent 
  dip 
  to 
  the 
  East. 
  Strewed 
  about 
  in 
  the 
  

   vicinity 
  are 
  a 
  few 
  pieces 
  of 
  conglomerate, 
  like 
  that 
  associated 
  with 
  the 
  

   Baumi 
  limestone 
  ; 
  and 
  a 
  little 
  to 
  the 
  South, 
  in 
  a 
  line 
  indicating 
  a 
  lower 
  

   position 
  stratigraphically, 
  stands 
  a 
  huge 
  fang 
  of 
  harsh 
  sandstone 
  very 
  

   similar 
  to 
  the 
  Baumi 
  rock. 
  The 
  distance 
  of 
  this 
  spot 
  from 
  Baumi 
  is 
  

   about 
  thirty 
  miles, 
  and. 
  though 
  I 
  know 
  of 
  no 
  other 
  outcrop 
  in 
  the 
  inter- 
  

   val, 
  I 
  am 
  inclined, 
  to 
  regard 
  both 
  outcrops 
  as 
  belonging 
  to 
  one 
  bed. 
  

   Great 
  as 
  the 
  thickness 
  of 
  the 
  limestone 
  is 
  at 
  Baumi, 
  it 
  is 
  much 
  isolated 
  

   most 
  probably 
  by 
  denudation 
  ; 
  and 
  I 
  failed 
  after 
  a 
  careful 
  search 
  to 
  detect 
  

   any 
  traces 
  of 
  it 
  on 
  the 
  opposite 
  side 
  of 
  the 
  Baumi 
  river, 
  nor 
  were 
  my 
  

   enquiries 
  among 
  the 
  Burmese 
  more 
  successful. 
  Another 
  enormous 
  isolated 
  

   mass 
  of 
  limestone 
  of 
  very 
  similar 
  character, 
  occurs 
  on 
  the 
  On-ben 
  

   stream, 
  a 
  tributary 
  of 
  the 
  Gwah 
  river. 
  It 
  is 
  situated 
  in 
  dense 
  tree 
  

   forest 
  away 
  from 
  any 
  village, 
  and 
  I 
  failed 
  to 
  detect 
  any 
  organic 
  remains 
  

   in 
  it. 
  In 
  some 
  pieces 
  of 
  limestone, 
  however, 
  said 
  to 
  have 
  been 
  brought 
  

   from 
  this 
  spot, 
  I 
  noticed 
  what 
  I 
  regarded 
  as 
  foramenifera 
  and 
  bryozoa, 
  

   but 
  I 
  did 
  not 
  satisfy 
  myself 
  that 
  the 
  rock 
  was 
  Nummulitic. 
  There 
  is, 
  

   however, 
  small 
  question 
  that 
  the 
  Baumi 
  and 
  On-ben 
  limestones 
  are 
  the 
  

   same 
  bed, 
  and 
  as 
  the 
  former 
  may 
  ere 
  long 
  be 
  quarried 
  for 
  the 
  requirements 
  

   of 
  the 
  Akyab 
  district, 
  it 
  is 
  probable 
  that 
  some 
  fossil 
  evidence 
  of 
  its 
  age 
  

   may 
  be 
  then 
  forthcoming. 
  

  

  About 
  a 
  mile 
  South-south-east 
  from 
  Kyeantalee, 
  a 
  cave 
  occurs 
  in 
  a 
  

   huge 
  mass 
  of 
  hard 
  compact 
  sandstone 
  almost 
  as 
  quartzitic 
  as 
  that 
  under- 
  

   lying 
  the 
  Baumi 
  limestone. 
  The 
  cave 
  is 
  a 
  low 
  chamber 
  with 
  a 
  narrow 
  

   passage 
  through 
  which 
  it 
  is 
  necessary 
  to 
  enter 
  on 
  the 
  hands 
  and 
  knees, 
  

   and, 
  as 
  far 
  as 
  I 
  could 
  judge, 
  seems 
  to 
  be 
  of 
  natural 
  origin, 
  though 
  it 
  

   would 
  seem 
  to 
  have 
  no 
  reference 
  to 
  the 
  natural 
  bedding 
  of 
  the 
  rock. 
  

   The 
  entrance 
  is 
  situated 
  in 
  the 
  face 
  of 
  a 
  huge 
  mass 
  of 
  rock, 
  and 
  a 
  rude 
  

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  ) 
  

  

  