﻿Report 
  of 
  the 
  State 
  Geologist. 
  531 
  

  

  are 
  carried 
  high 
  up 
  the 
  slope 
  of 
  the 
  ridge, 
  where 
  they 
  finally 
  

   attain 
  a 
  dip 
  of 
  sixty 
  degrees 
  to 
  the 
  westward 
  as 
  shown 
  in 
  the 
  

   second 
  section 
  in 
  plate 
  7. 
  A 
  short 
  distance 
  north 
  of 
  this 
  section 
  

   they 
  pitch 
  down 
  again 
  and 
  are 
  overarched 
  by 
  the 
  Pentamerus 
  

   and 
  Tentaculite 
  limestones 
  along 
  the 
  eastern 
  slope 
  of 
  the 
  ridge. 
  

   On 
  the 
  eastern 
  limb 
  of 
  the 
  main 
  arch 
  there 
  develops 
  in 
  this 
  dis- 
  

   trict 
  a 
  gentle 
  synclinal 
  and 
  anticlinal, 
  which 
  greatly 
  widen 
  the 
  

   superficial 
  area 
  of 
  the 
  cement 
  beds 
  in 
  the 
  valley. 
  They 
  are 
  

   shown 
  to 
  the 
  right 
  in 
  figure 
  8. 
  They 
  do 
  not 
  extend 
  far 
  to 
  the 
  

   southward, 
  but, 
  they 
  extend 
  north 
  through 
  the 
  upper 
  Binnewater 
  

   district. 
  They 
  are 
  well 
  exhibited 
  in 
  the 
  cement 
  quarries 
  and 
  

   mines 
  along 
  the 
  turnpike, 
  south 
  of 
  Whiteport 
  Station. 
  The 
  

   dips 
  are 
  not 
  over 
  five 
  degrees 
  at 
  greatest 
  on 
  these 
  flexures, 
  and 
  

   for 
  the 
  most 
  part 
  they 
  are 
  less 
  than 
  five 
  degrees. 
  North 
  of 
  the 
  

   line 
  of 
  the 
  second 
  section 
  (on 
  plate 
  7) 
  the 
  cement 
  beds 
  in 
  this 
  

   shallow 
  flexure 
  gradually 
  pitch 
  beneath 
  the 
  Tentaculite 
  and 
  

   Pentamerus 
  beds 
  which 
  occupy 
  a 
  wide 
  region 
  of 
  low 
  rocky 
  

   ridges 
  west 
  of 
  Whiteport. 
  

  

  In 
  the 
  cement 
  region 
  south 
  of 
  Whiteport 
  there 
  are 
  the 
  two 
  

   cement 
  beds, 
  the 
  upper 
  or 
  "white 
  cement" 
  having 
  a 
  thickness 
  

   of 
  twelve 
  feet 
  and 
  the 
  lower 
  or 
  " 
  gray 
  cement 
  " 
  eighteen 
  feet, 
  

   with 
  seventeen 
  to 
  twenty 
  feet 
  of 
  waterlime 
  beds 
  between 
  them. 
  

   The 
  underlying 
  formation 
  is 
  the 
  Clinton 
  quartzite, 
  and 
  this 
  in 
  

   turn 
  is 
  underlaid 
  by 
  the 
  red 
  shales, 
  which 
  in 
  the 
  northern 
  part 
  

   of 
  the 
  region 
  are 
  of 
  a 
  somewhat 
  diminished 
  thickness. 
  The 
  

   quartzite 
  is 
  in 
  moderately 
  thin 
  beds 
  of 
  flesh-buff 
  and 
  

   pink 
  colors 
  of 
  rather 
  bright 
  tints 
  which 
  are 
  largely 
  in 
  ribbonings 
  

   or 
  mark 
  a 
  minute 
  cross 
  sub-bedding. 
  The 
  Shawangunk 
  grit 
  has 
  

   a 
  thickness 
  of 
  only 
  three 
  feet 
  in 
  the 
  central 
  part 
  of 
  the 
  area 
  and 
  

   is 
  a 
  dirty 
  brown 
  to 
  gray, 
  pebbly 
  quartzite. 
  The 
  best 
  exposure 
  

   of 
  the 
  formations 
  underlying 
  the 
  cement 
  series, 
  and 
  the 
  only 
  

   complete 
  one, 
  is 
  along 
  the 
  railroad 
  south 
  of 
  the 
  southernmost 
  

   turnpike 
  crossing. 
  A 
  portion 
  of 
  this 
  is 
  shown 
  in 
  plate 
  9, 
  which 
  

   clearly 
  illustrates 
  the 
  relations 
  of 
  the 
  two 
  cement 
  beds. 
  

  

  In 
  this 
  plate 
  the 
  location 
  of 
  the 
  Clinton 
  shales 
  is 
  in 
  the 
  depres- 
  

   sion 
  down 
  the 
  bank 
  from 
  the 
  small 
  boiler-house, 
  the 
  Shawangunk 
  

   grit 
  exposure 
  is 
  just 
  to 
  the 
  right 
  of 
  this, 
  near 
  the 
  railroad 
  tracks, 
  

   and 
  the 
  Hudson 
  river 
  shales 
  are 
  under 
  the 
  bridge. 
  To 
  the 
  right 
  

   of 
  the 
  eastern 
  abutment 
  of 
  this 
  bridge 
  there 
  is 
  a 
  wide 
  valley 
  

  

  