﻿MOULMEIN 
  GROUP. 
  137 
  

  

  Higher 
  up 
  the 
  stream 
  the 
  dip 
  is 
  more 
  regular, 
  always 
  high, 
  but 
  varying 
  

   from 
  North-east-by-east, 
  round 
  to 
  East-north-east. 
  Some 
  of 
  the 
  sand- 
  

   stones 
  are 
  hard, 
  and 
  have 
  strings 
  of 
  quartz 
  pebbles 
  irregularly 
  dissemi- 
  

   nated 
  through 
  them, 
  the 
  pebbles 
  sometimes, 
  however, 
  being 
  accumulated 
  

   in 
  bands. 
  In 
  one 
  spot 
  I 
  noticed 
  among 
  the 
  finer 
  ingredients 
  a 
  well 
  

   rounded 
  quartz 
  boulder 
  six 
  inches 
  in 
  length 
  in 
  one 
  of 
  these 
  conglomeratic 
  

   sandstones 
  ; 
  but 
  such 
  instances 
  are 
  rare. 
  Some 
  of 
  the 
  coarser 
  beds 
  up 
  

   this 
  stream 
  are, 
  however, 
  of 
  such 
  a 
  character 
  as 
  to 
  overtax 
  my 
  power 
  of 
  

   adequately 
  describing. 
  One 
  of 
  the 
  most 
  remarkable, 
  and 
  which 
  will 
  

   explain 
  the 
  type 
  of 
  the 
  rest, 
  was 
  just 
  below 
  a 
  spot 
  where 
  a 
  wall 
  of 
  rock 
  

   crossed 
  the 
  stream, 
  rendering 
  it 
  impassable 
  for 
  elephants. 
  The 
  bed 
  in 
  

   question 
  was 
  a 
  sandstone 
  of 
  ordinary 
  appearance 
  enough, 
  save 
  that 
  

   embedded 
  in 
  it 
  were 
  large 
  angular 
  fragments 
  of 
  a 
  subschistose 
  rock 
  

   belonging 
  to 
  some 
  older 
  group. 
  Many 
  of 
  these 
  included 
  fragments 
  were 
  

   nearly 
  a 
  foot 
  in 
  diameter, 
  and, 
  as 
  far 
  as 
  I 
  could 
  judge, 
  were 
  truly 
  deriva- 
  

   tive 
  fragments, 
  and 
  not 
  (as 
  occasionally 
  is 
  seen) 
  fragmentary 
  portions 
  of 
  

   a 
  rock 
  cotemporary 
  with 
  the 
  beds 
  which 
  seem 
  to 
  enclose 
  them. 
  The 
  bed 
  

   was 
  not 
  in 
  other 
  respects 
  very 
  conglomeratic, 
  nor 
  were 
  these 
  fragments 
  

   very 
  numerous; 
  and 
  I 
  suppose 
  the 
  appearance, 
  however 
  created, 
  was 
  due 
  

   to 
  causes 
  extremely 
  local. 
  I 
  nowhere 
  else 
  noticed 
  any 
  similar 
  bed 
  to 
  

   this, 
  and 
  the 
  general 
  character 
  of 
  the 
  coarser 
  conglomerates 
  of 
  this 
  group 
  

   is 
  that 
  of 
  a 
  rock 
  composed 
  of 
  partially 
  or 
  well-rounded 
  fragments, 
  with 
  

   a 
  rather 
  sparing 
  amount 
  of 
  matrix, 
  and 
  in 
  places 
  only 
  displaying 
  a 
  

   tendency 
  to 
  the 
  angularity 
  of 
  a 
  breccia. 
  

  

  XII. 
  — 
  Moulmein 
  Group. 
  

  

  A 
  very 
  brief 
  notice 
  of 
  this 
  group 
  must 
  suffice, 
  as 
  it 
  nowhere 
  occurs 
  

   within 
  the 
  limits 
  of 
  Pegu, 
  but 
  is 
  restricted 
  to 
  the 
  West 
  bank 
  of 
  the 
  

   Sittoung, 
  where 
  it 
  spreads 
  southward 
  into 
  Martaban 
  and 
  Tenasserim. 
  The 
  

   term 
  ' 
  Moulmein' 
  was 
  first 
  applied 
  to 
  these 
  beds 
  by 
  Dr. 
  Oldham 
  in 
  a 
  

   Report 
  of 
  his 
  on 
  the 
  coal 
  of 
  Thaietmio 
  and 
  the 
  Tenasserim 
  Provinces, 
  

   s 
  ( 
  325 
  ) 
  

  

  