﻿Report 
  of 
  the 
  State 
  Geologist, 
  659 
  

  

  sand 
  appears 
  along 
  the 
  Ausable 
  river 
  and 
  forms 
  banks 
  and 
  

   terraces 
  that 
  will 
  well 
  merit 
  study 
  in 
  connection 
  with 
  the 
  new 
  

   contour 
  maps 
  

  

  Mines, 
  quarries, 
  etc. 
  — 
  No 
  mines 
  of 
  any 
  moment 
  have 
  been 
  

   opened. 
  The 
  one 
  industry 
  of 
  this 
  character 
  is 
  of 
  recent 
  develop- 
  

   ment 
  and 
  is 
  based 
  on 
  the 
  building 
  stone 
  near 
  Keeseville. 
  The 
  

   feldspathic 
  anorthosites 
  furnish 
  a 
  beautiful 
  stone 
  when 
  homo- 
  

   geneous 
  and 
  one 
  that 
  takes 
  a 
  fine 
  polish. 
  Prof. 
  Smock 
  has 
  given 
  

   quite 
  full 
  details 
  of 
  the 
  quarries 
  in 
  Bulletin 
  3 
  of 
  the 
  State 
  

   Museum, 
  p. 
  33, 
  1888, 
  and 
  Bulletin 
  10, 
  p. 
  232, 
  1890. 
  

  

  Elizabethtown. 
  

  

  Series 
  I. 
  The 
  gneisses 
  enter 
  Elizabethtown 
  on 
  the 
  southeast, 
  

   being 
  an 
  extension 
  of 
  the 
  Moriah 
  area, 
  west 
  and 
  north 
  of 
  Mine- 
  

   ville. 
  The 
  strike 
  in 
  the 
  southeastern 
  corner 
  is 
  generally 
  north- 
  

   east, 
  but 
  further 
  on, 
  beyond 
  Lincoln 
  pond, 
  at 
  the 
  Gates 
  mine 
  

   (45, 
  46), 
  it 
  is 
  northwest. 
  Down 
  in 
  the 
  Boquet 
  Elver 
  valley 
  it 
  is 
  

   again 
  northeast 
  (52). 
  The 
  dip 
  is 
  extremely 
  variable. 
  The 
  

   gneisses 
  are 
  mostly 
  hornblendic, 
  but 
  they 
  show 
  the 
  invariable 
  

   microperthitic 
  orthoclase 
  and 
  quartz. 
  Not 
  infrequently 
  mala- 
  

   colite 
  appears 
  with 
  the 
  others. 
  Such 
  rocks 
  form 
  the 
  walls 
  of 
  the 
  

   Gates 
  ore 
  bed, 
  anorare 
  met 
  near 
  the 
  mines 
  of 
  the 
  western 
  edge 
  

   of 
  the 
  gneiss. 
  Occasional 
  bands 
  of 
  rock, 
  consisting 
  of 
  plagioclase, 
  

   pyroxene 
  and 
  hornblende, 
  run 
  through 
  the 
  gneiss, 
  as 
  at 
  40, 
  east 
  

   of 
  New 
  Russia, 
  and 
  these 
  suggest 
  intruded 
  sheets 
  of 
  series 
  III. 
  

   The 
  gneiss 
  forms 
  a 
  tongue 
  to 
  the 
  north, 
  along 
  the 
  valley 
  of 
  the 
  

   Boquet, 
  a 
  ad 
  finally 
  disappears 
  about 
  a 
  mile 
  south 
  of 
  Elizabeth- 
  

   town 
  village. 
  

  

  Series 
  II 
  The 
  crystalline 
  limestones 
  and 
  associates 
  are 
  not 
  

   met 
  in 
  Elizabethtown. 
  

  

  Series 
  III 
  The 
  aaorthosites 
  cover 
  the 
  greater 
  portion 
  of 
  the 
  

   township. 
  They 
  make 
  up 
  the 
  large 
  hills 
  or 
  mountains, 
  Raven 
  

   hill 
  and 
  Green 
  hill 
  on 
  the 
  northeast, 
  the 
  great 
  peaks 
  of 
  Hurri- 
  

   cane 
  mountain 
  and 
  Giant, 
  on 
  the 
  west, 
  and 
  the 
  lower 
  hills 
  near 
  

   Euba 
  Mills 
  on 
  the 
  south. 
  They 
  are 
  at 
  times 
  nearly 
  pure, 
  massive 
  

   labradorite, 
  again 
  and 
  most 
  often, 
  are 
  gneissoid. 
  la 
  Cobble 
  hill 
  near 
  

   Elizabethtown 
  they 
  are 
  notably 
  so. 
  The 
  basic 
  gabbr 
  js 
  were 
  only 
  

   met 
  as 
  float 
  material 
  but 
  these 
  boulders 
  furnished 
  some 
  excellent 
  

   illustrations 
  of 
  the 
  variety 
  with 
  olivine. 
  On 
  the 
  road 
  to 
  Lewis 
  

  

  