﻿Report 
  of 
  tee 
  State 
  Geologist, 
  651 
  

  

  The 
  limits 
  of 
  each 
  are 
  beyond 
  accurate 
  mapping, 
  so 
  that 
  one 
  is 
  

   forced 
  to 
  conclude 
  that 
  the 
  limestone 
  series 
  is 
  an 
  upper 
  phase 
  of 
  

   the 
  gneiss 
  and 
  that 
  both 
  are 
  involved 
  with 
  intruded 
  anorthosites. 
  

  

  Series 
  II 
  The 
  limestone 
  series 
  forms 
  the 
  central 
  part 
  of 
  

   the 
  township 
  and 
  its 
  most 
  fertile 
  portion. 
  Tue 
  topography 
  is 
  

   diversified, 
  but 
  not 
  on 
  so 
  grand 
  a 
  scale 
  as 
  among 
  the 
  gneisses 
  and 
  

   anorthosites. 
  The 
  country 
  is 
  mostly 
  tilled 
  and 
  not 
  left 
  to 
  forest 
  

   growth. 
  The 
  beds 
  of 
  limestone 
  are 
  frequent, 
  and 
  in 
  not 
  a 
  few 
  

   cases 
  they 
  have 
  been 
  opened 
  to 
  supply 
  flux 
  to 
  the 
  early 
  charcoal 
  

   furnaces 
  and 
  the 
  modern 
  anthracite 
  stacks. 
  In 
  the 
  eastern 
  edge 
  

   of 
  the 
  northern 
  portion 
  of 
  the 
  area, 
  near 
  101, 
  a 
  superb 
  pegma- 
  

   tite 
  vein 
  has 
  been 
  opened, 
  known 
  as 
  Roe's 
  spar 
  bed. 
  A 
  breast 
  

   of 
  150 
  feet 
  or 
  so 
  of 
  coarsely 
  crystalline 
  orthoclase 
  and 
  quartz, 
  

   with 
  occasional 
  great 
  bunches 
  of 
  biotite, 
  has 
  been 
  exposed 
  by 
  

   workings 
  long 
  since 
  abandoned. 
  Three 
  narrow 
  trap 
  dikes 
  cut 
  

   the 
  breast, 
  and 
  along 
  one 
  of 
  them 
  are 
  developed 
  the 
  curious 
  

   tourmaline 
  crystals, 
  described 
  many 
  years 
  ago 
  by 
  E. 
  H. 
  Williams. 
  

   (Amer. 
  Jour. 
  Sci. 
  iii, 
  XI, 
  273, 
  1866.) 
  The 
  quarry 
  cannot 
  be 
  far 
  

   from 
  the 
  borders 
  of 
  the 
  gneiss, 
  but 
  the 
  country 
  is 
  very 
  wild 
  and 
  

   wooded. 
  

  

  A 
  narrow 
  belt 
  of 
  the 
  limestone 
  series 
  begins 
  in 
  the 
  western 
  

   part 
  of 
  the 
  town 
  and 
  runs 
  in 
  a 
  valley 
  between 
  gneiss 
  on 
  the 
  south 
  

   and 
  anorthosite 
  on 
  the 
  north, 
  into 
  Schroon 
  township. 
  

  

  Series 
  III. 
  The 
  anorthosites 
  and 
  gabbros 
  find 
  their 
  only 
  

   development 
  in 
  the 
  northwest 
  corner, 
  where 
  they 
  form 
  a 
  rugged 
  

   and 
  mountainous 
  ridge 
  known 
  as 
  Moose 
  mountain. 
  It 
  is 
  a 
  

   prolongation 
  southward 
  of 
  a 
  still 
  larger 
  mountainous 
  mass 
  in 
  

   Moriah. 
  The 
  area 
  marked 
  with 
  the 
  gabbro 
  sign 
  is 
  a 
  very 
  basic 
  

   development 
  but 
  is 
  the 
  characteristic 
  aggregate 
  of 
  green 
  mono- 
  

   clinic 
  pyroxene, 
  brown 
  hornblende, 
  labradorite, 
  magnetite 
  and 
  

   garnet. 
  It 
  contains 
  two 
  deposits 
  of 
  titaniferous 
  ore, 
  which 
  have 
  

   been 
  prospected 
  to 
  some 
  little 
  extent. 
  The 
  ore 
  was 
  very 
  low 
  in 
  

   phosphorus 
  and 
  sulphur, 
  as 
  is 
  usual 
  in 
  these 
  titaniferous 
  ores, 
  but 
  

   the 
  titanium 
  prevented 
  its 
  utilization. 
  So 
  far 
  as 
  prospects 
  showed, 
  

   the 
  ore 
  was 
  a 
  mass 
  in 
  the 
  midst 
  of 
  igneous 
  rock, 
  that 
  formed 
  its 
  

   walls. 
  Tae 
  anorthosites 
  are 
  often, 
  if 
  not 
  almost 
  always 
  gneissoid, 
  

   but 
  they 
  are 
  unmistakable 
  in 
  their 
  characters. 
  Labradorite 
  is 
  the 
  

   principal 
  mineral, 
  and 
  then 
  follow 
  hornblende, 
  pyroxene, 
  and 
  

   garnet. 
  

  

  