﻿14 
  THEOBALD 
  : 
  GEOLOGY 
  OF 
  PEGU. 
  

  

  great 
  tendency 
  to 
  a 
  massive 
  structure 
  lithologically 
  resembling 
  granite, 
  

   but 
  neither 
  intrusive 
  nor 
  in 
  any 
  way 
  dissociated 
  from 
  the 
  more 
  bedded 
  

   members 
  of 
  the 
  group. 
  This 
  remark, 
  however, 
  is 
  not 
  intended 
  to 
  apply 
  to 
  

   the 
  rock 
  a 
  little 
  beyond 
  the 
  frontier, 
  containing 
  the 
  tin-stone 
  wrought 
  

   in 
  the 
  district, 
  which 
  is 
  probably 
  a 
  veritable 
  granite 
  in 
  every 
  sense 
  of 
  the 
  

   word. 
  The 
  interesting 
  feature 
  in 
  the 
  map 
  to 
  the 
  geographer 
  and 
  en- 
  

   gineer 
  is 
  the 
  connexion 
  shown 
  to 
  exist 
  between 
  the 
  Naweng 
  above 
  

   Prome 
  and 
  the 
  head 
  of 
  the 
  Myit-ma-kha-choung, 
  known 
  lower 
  down 
  

   as 
  the 
  Hieing 
  or 
  Rangoon 
  river 
  ; 
  but 
  the 
  topographical 
  inaccuracy 
  of 
  the 
  

   map 
  is 
  too 
  great 
  to 
  allow 
  our 
  placing 
  any 
  reliance 
  on 
  its 
  testimony 
  in 
  a 
  

   point 
  of 
  such 
  great 
  nicety, 
  and 
  the 
  more 
  so 
  as 
  the 
  channel 
  in 
  question 
  

   is 
  crossed 
  by 
  a 
  geological 
  color 
  band, 
  which, 
  I 
  presume, 
  is 
  rather 
  in- 
  

   tended 
  to 
  represent 
  an 
  ideal 
  watershed 
  between 
  the 
  drainage 
  areas 
  of 
  

   the 
  two 
  streams, 
  than 
  an 
  actual 
  exposure 
  of 
  rocks, 
  which 
  are 
  nowhere 
  

   revealed, 
  the 
  whole 
  country 
  hereabouts 
  being 
  a 
  vast 
  alluvial 
  plain. 
  

  

  Other 
  remarks 
  on 
  the 
  geology 
  of 
  Pegu 
  by 
  Lieutenant 
  Williams 
  

   may 
  be 
  referred 
  to 
  in 
  the 
  Records 
  of 
  the 
  Government 
  of 
  India, 
  No. 
  XX 
  ; 
  

   but 
  they 
  are 
  mainly 
  interesting, 
  as 
  showing 
  how 
  thoroughly 
  erroneous 
  

   much 
  of 
  the 
  information 
  may 
  be 
  which 
  a 
  zealous 
  officer 
  not 
  well 
  versed 
  

   in 
  the 
  subject 
  may 
  be 
  betrayed 
  into 
  putting 
  on 
  paper. 
  We 
  are, 
  for 
  in- 
  

   stance, 
  informed 
  (loc. 
  cit., 
  page 
  4) 
  that 
  — 
  " 
  In 
  Henzada 
  district, 
  granite, 
  

   greenstone 
  and 
  hornblende 
  are 
  met 
  with," 
  seemingly 
  an 
  unacknow- 
  

   ledged 
  reference 
  to 
  a 
  report 
  by 
  Lieutenant 
  Trevor, 
  in 
  selections 
  from 
  

   the 
  Records 
  of 
  the 
  Government 
  of 
  India, 
  No. 
  XV, 
  page 
  42 
  ; 
  and 
  again 
  

   the 
  following 
  not 
  very 
  intelligible 
  sentence 
  — 
  " 
  Quartz 
  nodules 
  are 
  com- 
  

   mon, 
  and 
  with 
  clay-slate 
  make 
  up 
  the 
  Grauwacke 
  formation, 
  which 
  with 
  

   the 
  limestone 
  beds 
  and 
  fossil 
  remains 
  of 
  molluscs 
  and 
  fishes 
  which 
  

   abound, 
  would 
  denote 
  the 
  Silurian 
  or 
  Transition 
  system.'" 
  

  

  There 
  is 
  the 
  possibility 
  that 
  Lieutenant 
  Trevor's 
  allusion 
  to 
  granite 
  

   and 
  greenstone 
  may 
  refer 
  to 
  some 
  of 
  the 
  small 
  developments 
  of 
  serpen- 
  

   tine 
  in 
  the 
  Henzada 
  district; 
  but 
  what 
  can 
  have 
  originated 
  the 
  idea 
  of 
  

  

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