﻿ADIRONDACK 
  MAGNETIC 
  IRON 
  ORES 
  97 
  

  

  12 
  years 
  ago, 
  put 
  a 
  stop 
  to 
  underground 
  operations 
  and 
  it 
  has 
  not 
  

   since 
  been 
  reopened. 
  It 
  is 
  said 
  that 
  the 
  ore 
  bodies 
  narrowed 
  

   appreciably 
  near 
  the 
  bottom, 
  indicating 
  that 
  they 
  are 
  probably 
  

   lenticular 
  like 
  the 
  Xelson 
  Bush 
  deposits. 
  

  

  In 
  the 
  reports 
  of 
  Putnam 
  and 
  Smock 
  the 
  mine 
  is 
  described 
  with 
  

   some 
  detail. 
  Three 
  parallel 
  bodies 
  occur, 
  called 
  the 
  black, 
  the 
  

   blue 
  and 
  the 
  gray 
  veins. 
  They 
  are 
  separated 
  by 
  gneiss 
  with 
  an 
  

   interval 
  of 
  40 
  feet 
  or 
  less 
  between 
  adjacent 
  walls. 
  The 
  strike 
  is 
  

   n. 
  35 
  e. 
  and 
  the 
  dip 
  70 
  at 
  the 
  surface 
  flattening 
  to 
  55 
  at 
  325 
  

   feet 
  depth. 
  Smock 
  states 
  that 
  the 
  bodies 
  run 
  off 
  as 
  shoots 
  under- 
  

   ground 
  pitching 
  at 
  an 
  angle 
  of 
  40 
  along 
  the 
  strike. 
  The 
  first 
  ore 
  

   body 
  on 
  the 
  foot-wall 
  side 
  is 
  the 
  gray 
  vein 
  which 
  varies 
  from 
  3 
  to 
  

  

  Blue 
  Black 
  Grav 
  

   vein 
  vem 
  vein 
  

  

  / 
  / 
  / 
  ^r 
  ^ 
  / 
  / 
  / 
  A 
  l 
  Bm 
  / 
  / 
  * 
  

  

  Fig. 
  16 
  Ideal 
  section 
  of 
  the 
  Arnold 
  ore 
  bodies. 
  Blue 
  vein 
  is 
  hematite 
  

  

  25 
  feet 
  in 
  thickness. 
  The 
  black 
  vein 
  in 
  the 
  middle 
  is 
  from 
  3 
  to 
  27 
  

   feet 
  thick 
  and 
  the 
  blue 
  to 
  the 
  west 
  about 
  the 
  same. 
  There 
  are 
  two 
  

   shafts, 
  500 
  feet 
  apart, 
  driven 
  on 
  the 
  dip 
  of 
  the 
  foot-wall 
  vein 
  con- 
  

   necting 
  by 
  crosscuts 
  with 
  the 
  adjacent 
  veins, 
  and 
  a 
  series 
  of 
  levels 
  

   about 
  700 
  feet 
  long. 
  The 
  section 
  included 
  herewith 
  [fig. 
  16] 
  shows 
  

   the 
  relations 
  of 
  the 
  three 
  ore 
  bodies. 
  

  

  Putnam 
  advances 
  the 
  opinion 
  that 
  the 
  Nelson 
  Bush 
  ore 
  bodies 
  

   are 
  a 
  continuation 
  of 
  the 
  gray 
  vein, 
  but 
  this 
  can 
  scarcely 
  be 
  true 
  

   since 
  the 
  axis 
  of 
  the 
  former 
  when 
  produced 
  southward 
  falls 
  con- 
  

   siderably 
  to 
  the 
  east 
  of 
  the 
  Arnold 
  workings. 
  No 
  indications 
  of 
  

   a 
  fault 
  sufficient 
  to 
  account 
  for 
  the 
  difference 
  in 
  horizon 
  were 
  

   found 
  on 
  the 
  surface. 
  It 
  seems 
  more 
  probable 
  that 
  the 
  two 
  mines 
  

   are 
  located 
  in 
  separate 
  horizons. 
  

  

  The 
  marked 
  variation 
  in 
  the 
  character 
  of 
  the 
  ore 
  in 
  the 
  different 
  

   veins 
  is 
  an 
  interesting 
  feature. 
  The 
  black 
  vein 
  yields 
  a 
  granular, 
  

  

  