﻿ADIRONDACK 
  MAGNETIC 
  IRON 
  ORES 
  

  

  133 
  

  

  is 
  only 
  from 
  50 
  to 
  100 
  feet 
  above 
  the 
  river 
  and 
  it 
  continues 
  

   practically 
  at 
  the 
  same 
  level 
  for 
  a 
  distance 
  of 
  500 
  feet 
  or 
  so 
  to- 
  

   the 
  north. 
  

  

  The 
  strike 
  of 
  the 
  ore 
  is 
  here 
  about 
  n. 
  6o° 
  e. 
  West 
  of 
  the 
  pits 
  the 
  

   deposit 
  follows 
  that 
  course 
  nearly 
  in 
  a 
  straight 
  line 
  for 
  a 
  distance 
  of 
  

   1000 
  feet; 
  it 
  then 
  turns 
  quite 
  abruptly 
  toward 
  the 
  northwest, 
  at 
  

   nearly 
  right 
  angles 
  to 
  its 
  former 
  direction, 
  and 
  ascends 
  the 
  ridge. 
  

   It 
  apparently 
  dies 
  out 
  or 
  disappears 
  in 
  a 
  swampy 
  tract 
  about 
  a 
  

   mile 
  west 
  of 
  the 
  railroad 
  station. 
  The 
  outcrop 
  is 
  concealed 
  over 
  

   considerable 
  intervals, 
  but 
  the 
  magnetic 
  determinations 
  serve 
  to 
  

   fix 
  its 
  course 
  with 
  reasonable 
  accuracy. 
  North 
  of 
  the 
  pit 
  the 
  con- 
  

   tinuation 
  of 
  the 
  ore 
  can 
  be 
  traced 
  across 
  the 
  highway 
  and 
  brook. 
  

   There 
  is 
  some 
  uncertainty 
  as 
  to 
  the 
  further 
  extent 
  of 
  the 
  deposit 
  

   owing 
  to 
  the 
  heavy 
  covering 
  of 
  drift, 
  though 
  the 
  magnetic 
  surveys 
  

   indicate 
  that 
  it 
  wedges 
  out 
  or 
  grades 
  into 
  the 
  country 
  rock 
  within 
  

   a 
  few 
  hundred 
  feet 
  north 
  of 
  the 
  brook. 
  The 
  strike 
  in 
  this 
  part 
  is 
  

   nearly 
  due 
  north. 
  

  

  Fig. 
  22 
  Benson 
  Mines. 
  Section 
  across 
  the 
  ore 
  bodies, 
  near 
  middle 
  of 
  quarry 
  

  

  Observations 
  of 
  the 
  dip 
  of 
  the 
  ore 
  and 
  inclosing 
  strata 
  show 
  a 
  

   monoclinal 
  arrangement 
  for 
  the 
  central 
  and 
  northern 
  parts 
  of 
  the 
  

   ore 
  belt. 
  The 
  gneiss 
  on 
  top 
  of 
  the 
  ridge 
  lies 
  nearly 
  flat. 
  Passing 
  

   across 
  the 
  strike 
  to 
  the 
  southeast 
  the 
  dip 
  increases 
  gradually 
  until 
  

   at 
  the 
  pits 
  it 
  is 
  about 
  45 
  southeast. 
  This 
  inclination 
  is 
  main- 
  

   tained 
  with 
  little 
  variation 
  for 
  1000 
  feet 
  along 
  the 
  outcrop 
  of 
  the 
  

   ore 
  to 
  the 
  southwest. 
  At 
  the 
  bend 
  or 
  fold 
  in 
  the 
  deposit 
  where 
  it 
  

   swings 
  toward 
  the 
  northwest, 
  the 
  dip 
  is 
  6o° 
  southeast. 
  Beyond 
  

   the 
  bend 
  there 
  is 
  a 
  flattening 
  of 
  the 
  dip, 
  and 
  over 
  the 
  remaining 
  

   distance 
  in 
  which 
  the 
  ore 
  can 
  be 
  traced 
  the 
  outcrops 
  show 
  the 
  

   strata 
  lying 
  nearly 
  horizontal 
  or 
  slightly 
  inclined 
  to 
  the 
  northwest. 
  

   The 
  change 
  in 
  the 
  dip 
  takes 
  place 
  within 
  an 
  interval 
  of 
  100 
  feet 
  and 
  

   would 
  seem 
  to 
  indicate 
  a 
  structural 
  break, 
  though 
  there 
  has 
  been 
  

   no 
  discernible 
  displacement 
  of 
  the 
  ore 
  by 
  faulting. 
  

  

  Besides 
  the 
  deposit 
  described, 
  there 
  are 
  indications 
  of 
  another 
  

  

  