﻿160 
  THEOBALD: 
  GEOLOGY 
  OF 
  PEGU. 
  

  

  think 
  the 
  oil 
  won 
  was 
  merely 
  a 
  trifling- 
  quantity, 
  stored 
  in 
  the 
  rock 
  at 
  

   about 
  the 
  usual 
  water 
  level 
  of 
  the 
  locality, 
  and 
  that 
  the 
  seam 
  or 
  crack 
  

   along 
  which 
  the 
  oil 
  may 
  be 
  presumed 
  to 
  have 
  ascended 
  to 
  the 
  surface 
  

   was 
  not 
  discovered 
  ; 
  there 
  is, 
  however, 
  no 
  indication 
  at 
  the 
  surface 
  to 
  enable 
  

   an 
  opinion 
  to 
  be 
  formed 
  as 
  to 
  the 
  source 
  of 
  the 
  oil, 
  and 
  the 
  experiments 
  

   here 
  are 
  not 
  likely 
  to 
  be 
  renewed. 
  

  

  The 
  nest 
  locality 
  is 
  situated 
  near 
  Banbyin 
  (Pan-pyeng 
  in 
  map), 
  

   eleven 
  and 
  a 
  half 
  miles 
  West-north-west 
  from 
  Thaiet-mio, 
  on 
  the 
  banks 
  

   of 
  a 
  stream 
  falling 
  into 
  the 
  Irrawadi 
  a 
  little 
  above 
  Thaiet-mio. 
  The 
  

   whole 
  country 
  hereabouts 
  consists 
  of 
  beds 
  of 
  shale 
  and 
  sandstone, 
  occupy- 
  

   ing 
  a 
  high 
  position 
  in 
  the 
  newer 
  Tertiary 
  group, 
  and 
  probably 
  not 
  

   far 
  removed 
  geologically 
  from 
  the 
  horizon 
  of 
  the 
  beds 
  at 
  Padouk-ben. 
  

   The 
  whole 
  country 
  between 
  this 
  and 
  Padouk-ben 
  consists 
  of 
  these 
  beds, 
  

   rolling 
  and 
  dipping 
  at 
  various 
  angles, 
  but 
  presenting 
  no 
  special 
  marks 
  

   of 
  disturbance. 
  Some 
  way 
  above 
  the 
  village 
  of 
  Banbyin, 
  a 
  little 
  below 
  

   the 
  main 
  locality, 
  indications 
  of 
  petroleum 
  are 
  seen 
  in 
  the 
  blue 
  shales 
  

   forming 
  the 
  bank 
  of 
  the 
  stream, 
  and 
  some 
  shafts 
  were 
  sunk 
  here, 
  but 
  

   without 
  much 
  success. 
  On 
  the 
  North 
  bank 
  of 
  the 
  stream, 
  in 
  some 
  

   small 
  feeders, 
  and 
  several 
  other 
  spots, 
  indications 
  of 
  petroleum 
  are 
  met 
  

   with 
  ; 
  but 
  as 
  no 
  results 
  have 
  accrued 
  from 
  any 
  of 
  these 
  spots, 
  I 
  will 
  merely 
  

   describe 
  the 
  main 
  shaft 
  from 
  which 
  a 
  little 
  petroleum 
  has 
  been 
  extracted, 
  

   but 
  which 
  is 
  so 
  badly 
  situated 
  on 
  the 
  verge 
  of 
  the 
  stream 
  that 
  it 
  has 
  

   probably 
  ere 
  this 
  been 
  engulphed 
  by 
  the 
  floods. 
  This 
  shaft 
  is 
  situated 
  

   on 
  the 
  North 
  bank 
  of 
  the 
  stream 
  about 
  a 
  mile 
  above 
  Banbyin 
  on 
  the 
  

   slope 
  of 
  a 
  steep 
  bank 
  of 
  shale 
  which 
  is 
  here 
  undercut, 
  and 
  in 
  process 
  of 
  

   removal 
  by 
  the 
  current. 
  These 
  shales 
  undulate 
  at 
  low 
  angles, 
  but 
  just 
  

   below 
  where 
  they 
  disappear 
  a 
  hard 
  bed 
  of 
  sandstone 
  comes 
  in 
  over 
  them 
  

   dipping 
  70° 
  South. 
  The 
  beds 
  are 
  rather 
  crushed 
  beneath 
  this 
  hard 
  band 
  

   of 
  rock, 
  as 
  though 
  from 
  the 
  sharp 
  flexure 
  they 
  here 
  make, 
  and 
  it 
  is 
  

   beneath 
  this 
  bed 
  that 
  a 
  little 
  petroleum 
  escapes 
  into 
  the 
  stream. 
  To 
  tap 
  

   this 
  source 
  was 
  doubtless 
  the 
  reason 
  of 
  choosing 
  so 
  precarious 
  a 
  site 
  for 
  

  

  ( 
  3±8 
  ) 
  

  

  