﻿102 
  THEOBALD: 
  GEOLOGY 
  OP 
  PEGU. 
  

  

  preserved, 
  from 
  the 
  breaking 
  up 
  of 
  the 
  shale 
  containing' 
  them 
  into 
  

   minute 
  fragments 
  on 
  drying. 
  These 
  shales 
  and 
  the 
  argillaceous 
  sand- 
  

   stones 
  which 
  overlie 
  them 
  must 
  represent 
  a 
  prodigious 
  thickness 
  of 
  

   beds, 
  by 
  a 
  rough 
  estimate 
  not 
  less 
  than 
  three 
  thousand 
  feet.*' 
  

  

  The 
  following 
  section 
  in 
  the 
  Hlowa 
  stream 
  embraces 
  some 
  beds 
  pro- 
  

   bably 
  lower 
  than 
  any 
  mentioned 
  above, 
  though 
  there 
  is 
  no 
  means 
  of 
  

   properly 
  correlating 
  the 
  beds. 
  It 
  is 
  far 
  from 
  clear 
  in 
  this 
  section 
  where 
  

   the 
  Nummulitic 
  group 
  commences, 
  and 
  a 
  certain 
  margin 
  for 
  this 
  uncer- 
  

   tainty 
  must 
  be 
  allowed. 
  The 
  beds 
  are, 
  where 
  the 
  section 
  commences 
  

   nearly 
  vertical, 
  but 
  lose 
  this 
  character, 
  as 
  we 
  ascend 
  in 
  the 
  section. 
  

   The 
  junction 
  of 
  the 
  Nummulitics 
  with 
  the 
  Triassic 
  rocks, 
  is 
  I 
  believe, 
  

   a 
  faulted 
  one; 
  and 
  my 
  colleague, 
  Mr. 
  Fedden, 
  in 
  speaking 
  of 
  this 
  

   very 
  section 
  alludes 
  to 
  " 
  something 
  very 
  like 
  a 
  fault," 
  though 
  I 
  cannot 
  

   precisely 
  identify 
  the 
  beds 
  which 
  he 
  considered 
  it 
  to 
  separate. 
  The 
  sec- 
  

   tion 
  now 
  given 
  is 
  that 
  alluded 
  to 
  in 
  the 
  Records 
  of 
  the 
  Geological 
  Survey 
  

   of 
  India, 
  Part 
  2, 
  1871, 
  page 
  37, 
  and 
  is 
  a 
  continuation 
  along 
  the 
  bed 
  of 
  

   the 
  Hlowa 
  stream 
  of 
  the 
  rocks 
  below 
  the 
  point 
  where 
  I 
  assumed 
  the 
  

   Triassics 
  to 
  terminate 
  along 
  a 
  fault. 
  

  

  Section 
  of 
  lower 
  Nummulitic 
  rocks 
  in 
  Hlowa 
  stream 
  above 
  the 
  vil- 
  

   lage 
  of 
  Yuathit, 
  in 
  ascending 
  order 
  : 
  

  

  Triassic 
  strata. 
  — 
  

  

  Nummulitics 
  — 
  

   Hard 
  sandstones 
  (ill 
  seen) 
  ... 
  ... 
  , 
  

  

  Shales 
  (ill 
  seen) 
  ...+ 
  

  

  Blue 
  friable 
  shale, 
  with 
  numerous 
  bands 
  of 
  sandstone 
  

   Ditto 
  with 
  shales 
  predominant... 
  

  

  Carried 
  over 
  . 
  . 
  . 
  870 
  

  

  * 
  These 
  sandstones 
  form 
  both 
  banks 
  of 
  the 
  Mahton 
  stream 
  where 
  it 
  approaches 
  the 
  

   Nummulitic 
  boundary, 
  and 
  from 
  their 
  mode 
  of 
  weathering 
  into 
  precipitous 
  slopes 
  entirely 
  

   obstruct 
  the 
  valley 
  on 
  either 
  bank 
  for 
  any 
  animal 
  save 
  men 
  and 
  goats. 
  Horses 
  and 
  carts 
  

   are 
  forced 
  to 
  take 
  to 
  the 
  channel 
  of 
  the 
  Mahton, 
  fording 
  backwards 
  and 
  forwards 
  from 
  bank 
  

   to 
  bank, 
  as 
  the 
  nature 
  of 
  the 
  stream 
  compels 
  them 
  ; 
  and 
  in 
  the 
  rains 
  the 
  river 
  path 
  is 
  of 
  

   course 
  impassable 
  and 
  all 
  traffic 
  suspended. 
  A 
  good 
  road 
  might 
  be 
  easily 
  made 
  at 
  a 
  small 
  

   cost 
  along 
  either 
  bank, 
  which 
  would 
  prove 
  a 
  great 
  boon 
  to 
  the 
  people, 
  and 
  which, 
  if 
  carried 
  

   along 
  the 
  East 
  bank, 
  would 
  avoid 
  the 
  formidable 
  crossing 
  at 
  the 
  junction 
  of 
  the 
  Hlowa 
  

   stream 
  with 
  the 
  Mahton. 
  

  

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