﻿528 
  Forty-seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  begin 
  at 
  the 
  western 
  outcrop 
  but 
  thei 
  e 
  is 
  also 
  an 
  outlet 
  to 
  the 
  

   mines 
  in 
  an 
  inclined 
  adit 
  which 
  comes 
  out 
  in 
  the 
  depress! 
  m 
  just 
  

   west 
  of 
  the 
  fault. 
  A 
  portion 
  of 
  the 
  western 
  entrance 
  to 
  the 
  

   galleries 
  is 
  shown 
  in 
  plate 
  8, 
  and 
  this 
  plate 
  also 
  illustrates 
  the 
  

   relations 
  of 
  the 
  two 
  cement 
  beds. 
  

  

  There 
  are 
  two 
  cement 
  beds 
  in 
  the 
  Kosendale-Whiteport 
  region, 
  

   and 
  at 
  Eosendale 
  the 
  lower 
  bed 
  or 
  "dark 
  cement" 
  averages 
  

   about 
  twenty-one 
  feet 
  in 
  thickness, 
  and 
  the 
  upper 
  bed, 
  or 
  " 
  light 
  

   cement," 
  eleven 
  feet, 
  with 
  fourteen 
  to 
  fifteen 
  feet 
  of 
  waterlime- 
  

   stones 
  intervening. 
  The 
  lower 
  bed 
  lies 
  directly 
  on 
  the 
  Clinton 
  

   quartzite, 
  the 
  even 
  upper 
  surface 
  of 
  which 
  affords 
  an 
  admirable 
  

   floor 
  for 
  the 
  galleries. 
  For 
  about 
  eighteen 
  inches 
  at 
  the 
  bottom 
  

   the 
  dark 
  cement 
  is 
  too 
  sandy 
  for 
  use. 
  With 
  this 
  exception 
  and 
  a 
  

   few 
  small 
  layers 
  of 
  chert 
  it 
  is 
  all 
  available. 
  

  

  Overlying 
  the 
  cement 
  beds 
  there 
  are 
  several 
  feet 
  of 
  waterlime 
  

   beds 
  containing 
  thin 
  cement 
  layers. 
  The 
  Tentaculite 
  and 
  

   Pentamerus 
  beds 
  next 
  above 
  present 
  their 
  usual 
  characters 
  but 
  

   are 
  somewhat 
  increased 
  in 
  thickness, 
  and 
  at 
  Kosendale 
  they 
  give 
  

   rise 
  to 
  a 
  very 
  high 
  ridge 
  presenting 
  precipices 
  to 
  the 
  south 
  and 
  

   west, 
  as 
  shown 
  in 
  and 
  near 
  the 
  fourth 
  section 
  on 
  plate 
  7. 
  This 
  

   ridge 
  extends 
  northward 
  along 
  the 
  east 
  side 
  of 
  the 
  valley 
  which 
  

   occupies 
  the 
  crest 
  of 
  the 
  anticlinal, 
  and 
  there 
  is 
  an 
  almost 
  con- 
  

   tinuous 
  succession 
  of 
  cement 
  quarries 
  along 
  its 
  western 
  face. 
  The 
  

   formations 
  dip 
  gently 
  eastward 
  along 
  this 
  belt 
  and 
  have 
  a 
  very 
  

   slight 
  upward 
  pitch 
  to 
  the 
  north, 
  which 
  rapidly 
  increases 
  in 
  

   amount 
  near 
  Binne 
  water 
  station. 
  The 
  lower 
  part 
  of 
  the 
  valley 
  

   is 
  excavated 
  through 
  the 
  Clinton 
  quartzite 
  and 
  red 
  shales 
  to 
  the 
  

   surface 
  of 
  the 
  Shawangunk 
  grit, 
  but 
  farther 
  northward 
  it 
  is 
  in 
  

   the 
  Clinton 
  quartzite. 
  The 
  cement 
  beds 
  also 
  extend 
  along 
  the 
  

   west 
  side 
  of 
  the 
  valley, 
  and 
  dip 
  gently 
  to 
  the 
  west- 
  

   ward 
  on 
  the 
  western 
  limb 
  of 
  the 
  anticlinal, 
  where 
  they 
  

   are 
  worked 
  at 
  several 
  points. 
  They 
  are 
  overlaid 
  b^y 
  Ten- 
  

   taculite 
  and 
  Pentamerus 
  limestones, 
  which 
  constitute 
  the 
  slope 
  

   westward. 
  

  

  North 
  of 
  Binnewater 
  station 
  the 
  axis 
  of 
  the 
  anticlinal 
  pitches 
  

   up 
  and 
  the 
  cement 
  beds 
  and 
  overlying 
  limestones 
  are 
  carried 
  to 
  a 
  

   considerable 
  altitude 
  above 
  the 
  valley, 
  as 
  shown 
  in 
  section 
  111 
  

  

  