﻿Il8 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  riscribed 
  to 
  a 
  local 
  bulge 
  that 
  has 
  probably 
  resulted 
  from 
  the 
  fold- 
  

   ing. 
  The 
  large 
  ore 
  body 
  found 
  in 
  the 
  Hall 
  slope 
  very 
  likely 
  repre- 
  

   sents 
  the 
  combined 
  front, 
  middle 
  and 
  back 
  veins 
  which 
  have 
  con- 
  

   verged 
  in 
  depth. 
  The 
  walls 
  are 
  not 
  well 
  defined 
  in 
  this 
  part, 
  as 
  the 
  

   ore 
  grades 
  along 
  the 
  contact 
  into 
  the 
  country 
  rock. 
  Between 
  slopes 
  

   5 
  and 
  16 
  the 
  main 
  or 
  front 
  vein 
  averages 
  about 
  20 
  feet 
  across 
  the 
  

   dip 
  and 
  is 
  quite 
  regular. 
  The 
  dip 
  ranges 
  from 
  45 
  to 
  6o° 
  n. 
  w., 
  

   being 
  steeper 
  at 
  the 
  north. 
  The 
  main 
  workings 
  here 
  are 
  slopes 
  

   7,8, 
  12 
  and 
  14. 
  A 
  section 
  across 
  the 
  ore 
  bodies 
  on 
  line 
  of 
  the 
  Hall 
  

   slope 
  is 
  given 
  herewith 
  [fig. 
  19]. 
  

  

  The 
  Williams 
  or 
  82 
  mine 
  lies 
  2000 
  feet 
  northeast 
  of 
  slope 
  16 
  on 
  

   the 
  prolongation 
  of 
  the 
  same 
  zone. 
  It 
  has 
  not 
  been 
  operated 
  for 
  

   many 
  years. 
  The 
  workings 
  comprise 
  a 
  shaft 
  180 
  feet 
  deep 
  and 
  an 
  

   open 
  cut 
  extending 
  north 
  of 
  the 
  shaft 
  for 
  a 
  distance 
  of 
  200 
  feet. 
  

   The 
  geologic 
  relations 
  here 
  differ 
  from 
  those 
  in 
  the 
  southern 
  part 
  

   in 
  that 
  the 
  wall 
  rock 
  is 
  an 
  amphibole 
  schist. 
  The 
  deposit 
  consists 
  

   of 
  stringers 
  and 
  impregnations 
  of 
  magnetite 
  in 
  the 
  schist, 
  with 
  

   bands 
  of 
  lighter 
  augite 
  gneiss 
  intercalated 
  parallel 
  to 
  the 
  foliation. 
  

   The 
  ore 
  varies 
  in 
  richness 
  across 
  the 
  outcrop. 
  The 
  dip 
  of 
  the 
  

   strata 
  is 
  8o° 
  northwest 
  at 
  the 
  surface, 
  but 
  is 
  said 
  to 
  incline 
  away 
  

   from 
  the 
  vertical 
  gradually 
  with 
  depth. 
  

  

  Drill 
  tests. 
  Mention 
  may 
  be 
  made 
  of 
  the 
  diamond 
  drill 
  borings 
  

   which 
  have 
  been 
  put 
  down 
  to 
  explore 
  the 
  ore 
  bodies 
  and 
  which 
  

   show 
  their 
  approximate 
  position 
  outside 
  the 
  limits 
  of 
  present 
  

   workings. 
  A 
  drill 
  hole 
  located 
  on 
  the 
  west 
  side 
  of 
  West 
  Mine 
  

   street, 
  1200 
  feet 
  from 
  the 
  entrance 
  to 
  the 
  Hall 
  slope 
  and 
  in 
  line 
  

   with 
  its 
  direction, 
  found 
  the 
  ore 
  at 
  663 
  feet 
  depth 
  with 
  a 
  thickness 
  

   of 
  100 
  feet. 
  The 
  indicated 
  average 
  dip 
  of 
  the 
  ore 
  body 
  from 
  the 
  

   outcrop 
  to 
  the 
  point 
  intersected 
  by 
  the 
  hole 
  is 
  thus 
  about 
  45. 
  

  

  At 
  a 
  locality 
  on 
  the 
  continuation 
  of 
  the 
  same 
  line 
  but 
  800 
  feet 
  

   farther 
  north, 
  the 
  ore 
  was 
  encountered 
  at 
  1031 
  feet 
  and 
  showed 
  a 
  

   thickness 
  of 
  74 
  feet. 
  The 
  dip 
  flattens 
  considerably 
  between 
  the 
  

   two 
  holes, 
  averaging 
  only 
  22 
  for 
  the 
  interval. 
  

  

  On 
  line 
  with 
  slope 
  15 
  and 
  6co 
  feet 
  distant 
  from 
  the 
  shaft 
  a 
  drill 
  

   hole 
  found 
  the 
  ore 
  at 
  986 
  feet 
  with 
  a 
  thickness 
  of 
  80 
  feet. 
  The 
  

   indicated 
  dip 
  is 
  about 
  6o°. 
  A 
  second 
  body 
  of 
  lean 
  ore 
  20 
  feet 
  thick 
  

   was 
  found 
  below 
  the 
  first 
  separated 
  from 
  it 
  by 
  15 
  feet 
  of 
  rock. 
  

  

  A 
  negative 
  result 
  was 
  obtained 
  by 
  drilling 
  700 
  feet 
  northwest 
  of 
  

   the 
  Weston 
  pit. 
  The 
  hole 
  was 
  put 
  down 
  1859 
  feet 
  but 
  failed 
  to 
  

   find 
  ore. 
  The 
  position 
  of 
  the 
  hole 
  is 
  somewhat 
  west 
  of 
  a 
  line 
  

   drawn 
  from 
  the 
  Burden 
  pit, 
  which 
  approximately 
  marks 
  the 
  

   southwestern 
  limits 
  of 
  the 
  main 
  zone 
  as 
  present 
  known, 
  to 
  the 
  

  

  