﻿Report 
  of 
  the 
  State 
  Geologist. 
  529 
  

  

  on 
  plate 
  7. 
  The 
  valley 
  is 
  cut 
  laterally 
  on 
  the 
  western 
  slope 
  of 
  

   the 
  flexure 
  in 
  this 
  vicinity 
  and 
  exposes 
  the 
  Clinton 
  members 
  and 
  

   the 
  Shawangunk 
  grit 
  in 
  a 
  small 
  inclosed 
  area. 
  The 
  principal 
  

   cement 
  openings 
  are 
  high 
  up 
  on 
  the 
  slope, 
  but 
  the 
  beds 
  are 
  also 
  

   reached 
  by 
  an 
  adit 
  to 
  which 
  they 
  descend 
  on 
  a 
  steep 
  easterly 
  dip. 
  

   This 
  adit 
  begins 
  in 
  west 
  dipping 
  Shawangunk 
  grits, 
  crosses 
  a 
  

   small 
  anticlinal 
  of 
  the 
  underlying 
  Hudson 
  river 
  shales, 
  greatly 
  

   contorted, 
  and 
  th 
  n 
  n 
  penetrates 
  the 
  east 
  dipping 
  Shawangunk 
  

   grit, 
  and 
  the 
  Medina 
  shales 
  and 
  Clinton 
  quartzites 
  to 
  the 
  cement. 
  

   The 
  cement 
  rock 
  on 
  the 
  western 
  limb 
  of 
  the 
  anticlinal 
  outcrops 
  

   along 
  the 
  center 
  of 
  the 
  valley, 
  and 
  there 
  are 
  several 
  openings 
  

   along 
  its 
  course 
  near 
  the 
  shore 
  of 
  the 
  fifth 
  Binne 
  water, 
  west 
  

   of 
  the 
  railroad. 
  On 
  the 
  railroad 
  in 
  this 
  vicinity 
  there 
  are 
  

   extensive 
  exposures 
  of 
  the 
  Clinton 
  and 
  Medina 
  members, 
  nota- 
  

   bly 
  in 
  u 
  Bed 
  rock 
  cat," 
  which 
  is 
  in 
  the 
  red 
  shales. 
  The 
  first 
  

   cuts 
  expose 
  the 
  lower 
  cement 
  bed 
  lying 
  on 
  twenty 
  feet 
  of 
  

   Clinton 
  quartzite. 
  The 
  dip 
  is 
  fifty 
  degrees 
  to 
  the 
  west- 
  

   northwest. 
  The 
  quartzite 
  is 
  light 
  colored, 
  thin 
  bedded 
  and 
  

   has 
  the 
  cross 
  bedding 
  by 
  which 
  it 
  is 
  characterized 
  in 
  the 
  cement 
  

   openings 
  on 
  the 
  east 
  side 
  of 
  the 
  synclinal 
  as 
  described 
  on 
  a 
  

   previous 
  page. 
  The 
  underlying 
  shale 
  series 
  has 
  a 
  thickness 
  

   of 
  about 
  twenty 
  feet 
  and 
  consists 
  of 
  hard, 
  massively-bedded, 
  

   fine-grained, 
  rather 
  bright 
  brown-red 
  rocks, 
  which 
  break 
  up 
  

   into 
  shale 
  on 
  weathering. 
  The 
  Sha 
  wan 
  gunk 
  grit 
  is 
  a 
  light- 
  

   colored, 
  quartzitic, 
  massively-bedded 
  quartz 
  conglomerate, 
  having 
  

   a 
  thickness 
  of 
  fifty 
  feet 
  in 
  the 
  adits 
  to 
  the 
  cement 
  mine, 
  but 
  

   it 
  thins 
  rapidly 
  northward. 
  In 
  a 
  short 
  distance 
  beyond 
  "Red 
  

   rock 
  cut" 
  the 
  pitch 
  of 
  the 
  anticlinal 
  changes 
  to 
  northward, 
  

   and 
  the 
  Shawangunk 
  grit, 
  red 
  shales 
  and 
  quartzite 
  are 
  carried 
  

   below 
  the 
  surface 
  in 
  succession. 
  This 
  is 
  due 
  to 
  a 
  small 
  synclinal 
  

   which 
  crosses 
  the 
  principal 
  flexure 
  diagonally 
  on 
  a 
  nearly 
  due 
  

   north 
  and 
  south 
  trend. 
  This 
  small 
  synclinal 
  dies 
  out 
  a 
  short 
  

   distance 
  south, 
  but 
  it 
  widens 
  and 
  deepens 
  northward 
  and 
  extends 
  

   to 
  beyond 
  Hurley, 
  where 
  it 
  is 
  in 
  the 
  Onondaga 
  limestone. 
  The 
  

   cement 
  beds 
  are 
  extended 
  over 
  a 
  superficial 
  area 
  of 
  some 
  width 
  

   along 
  this 
  synclinal, 
  and 
  they 
  have 
  been 
  widely 
  removed 
  from 
  

   it 
  along 
  the 
  railroad 
  which 
  crosses 
  the 
  ridge 
  in 
  a 
  gap 
  in 
  this 
  

   67 
  

  

  