﻿140 
  THEOBALD 
  : 
  GEOLOGY 
  OE 
  PEGU. 
  

  

  occurring 
  in 
  • 
  Martaban 
  ; 
  but 
  speculation 
  on 
  this 
  point 
  is 
  best 
  deferred 
  for 
  

   the 
  present. 
  The 
  lead 
  ore 
  at 
  Tonghoo 
  occurs 
  in 
  the 
  nest 
  group 
  ; 
  but 
  my 
  

   impression 
  is 
  that 
  both 
  this 
  group 
  and 
  the 
  next 
  will 
  equally 
  be 
  found 
  to 
  

   be 
  the 
  repositories 
  of 
  the 
  metallic 
  deposits 
  of 
  Martaban, 
  whether 
  these 
  

   should 
  ultimately 
  prove 
  of 
  economic 
  value 
  or 
  not. 
  

  

  XIII. 
  — 
  Martaban 
  Group, 
  

  

  The 
  term 
  'Martaban' 
  is 
  applied, 
  for 
  convenience 
  merely, 
  to 
  this 
  

   group 
  from 
  its 
  large 
  development 
  in 
  Province 
  Martaban. 
  Of 
  its 
  age 
  

   we 
  know 
  nothing, 
  but 
  petrologically 
  considered 
  it 
  is 
  a 
  group 
  of 
  true 
  

   crystalline 
  rocks, 
  undistinguishable 
  in 
  character 
  from 
  the 
  ordinary 
  

   gneissose 
  rocks 
  of 
  Bengal. 
  

  

  Near 
  Martaban, 
  I 
  have 
  had 
  specimens 
  of 
  schorl 
  -rock 
  brought 
  to 
  

   me, 
  and 
  fragments 
  of 
  schorl 
  crystals 
  of 
  not 
  less 
  than 
  3 
  inches 
  in 
  dia- 
  

   meter, 
  which 
  the 
  natives 
  who 
  picked 
  them 
  up 
  evidently 
  supposed 
  might 
  

   have 
  some 
  connection 
  with 
  coal 
  ! 
  Micaceous 
  schists 
  are 
  common, 
  but 
  

   in 
  Martaban 
  (speaking 
  from 
  an 
  extremely 
  limited 
  acquaintance 
  with 
  the 
  

   ground) 
  hornblendic 
  rock 
  would 
  seem 
  less 
  abundant 
  than 
  in 
  the 
  same 
  

   group 
  of 
  rocks 
  in 
  India. 
  

  

  To 
  this 
  group, 
  I 
  have 
  no 
  hesitation 
  in 
  referring 
  much 
  of 
  the 
  so 
  termed 
  

   granite 
  of 
  the 
  country 
  lying 
  to 
  the 
  East 
  of 
  the 
  Salwin, 
  and 
  I 
  am 
  far 
  

   from 
  certain 
  if 
  all 
  the 
  ' 
  granite' 
  constituting 
  the 
  singular 
  hills 
  described 
  

   by 
  the 
  Revd. 
  C. 
  Parish, 
  in 
  the 
  Journal 
  of 
  the 
  Asiatic 
  Society 
  (Vol. 
  

   XXXIV, 
  for 
  1865, 
  page 
  135) 
  does 
  not 
  equally 
  belong 
  to 
  it, 
  rather 
  than 
  

   to 
  an 
  intrusive 
  rock 
  or 
  true 
  granite. 
  I 
  fully 
  admit 
  that 
  lithologically 
  

   this 
  Kyoukgyee 
  and 
  Kyiktyo 
  rock 
  is 
  a 
  perfect 
  granite, 
  but 
  from 
  the 
  

   identity 
  of 
  it 
  with 
  a 
  similar 
  granitoid 
  rock, 
  which 
  is 
  undoubtedly 
  a 
  

   member 
  of 
  the 
  schistose 
  group 
  of 
  crystalline 
  rocks, 
  I 
  am 
  led 
  to 
  suspect 
  a 
  

   similar 
  relationship 
  for 
  it. 
  

  

  The 
  connexion 
  of 
  a 
  granite 
  or 
  granitoid 
  rock 
  with 
  a 
  distinctly 
  schistose 
  

   group 
  of 
  beds 
  may 
  be 
  seen 
  on 
  the 
  road 
  from 
  Tonghoo 
  to 
  Lay 
  to, 
  where 
  

  

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