﻿498 
  Forty-seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  and 
  the 
  cleavage 
  they 
  give 
  rise 
  to 
  small, 
  very 
  rough 
  ridges 
  

   similar 
  to 
  those 
  of 
  Esopus 
  shale, 
  but 
  usually 
  of 
  even 
  rougher 
  sur- 
  

   face. 
  In 
  some 
  regions 
  they 
  constitute 
  the 
  steep 
  eastern 
  face 
  of 
  a 
  

   rid^e 
  of 
  which 
  the 
  crest 
  and 
  western 
  slope 
  are 
  Oriskany 
  sand- 
  

   stone. 
  Notwithstanding 
  the 
  slaty 
  cleavage 
  the 
  beds 
  are 
  every- 
  

   where 
  fossiliferous 
  but 
  the 
  remains 
  are 
  often 
  much 
  distorted. 
  

   The 
  thickness 
  of 
  this 
  member 
  is 
  about 
  125 
  feet 
  in 
  the 
  central 
  

   and 
  southern 
  portion 
  of 
  the 
  county, 
  decreasing 
  gradually 
  in 
  the 
  

   Saugerties 
  region 
  to 
  from 
  thirty 
  to 
  thirty-five 
  feet, 
  near 
  the 
  Greene 
  

   county 
  line. 
  The 
  upper 
  Shaly 
  limestone 
  appears 
  to 
  merge 
  into 
  

   the 
  Oriskany 
  beds 
  at 
  some 
  localities, 
  but 
  it 
  is 
  quite 
  abruptly 
  

   separated 
  from 
  the 
  Becraft 
  beds 
  below. 
  

  

  The 
  Becraft 
  limestone. 
  — 
  These 
  are 
  thick 
  beds 
  of 
  a 
  relatively 
  

   pure, 
  light 
  bluish-gray 
  to 
  pinkish-gray 
  limestone 
  of 
  semi-crystal- 
  

   line 
  grain, 
  and 
  made 
  up 
  in 
  considerable 
  portion 
  of 
  shell 
  and 
  shell 
  

   fragments. 
  Among 
  these 
  fragments 
  there 
  are 
  characteristic 
  

   saucer-shaped 
  masses 
  of 
  white 
  crystallized 
  carbonate 
  of 
  lime 
  

   mostly 
  from 
  an 
  inch 
  to 
  two 
  inches 
  in 
  diameter 
  representing 
  the 
  

   bases 
  of 
  the 
  heads 
  of 
  crinoids. 
  These 
  were 
  regarded 
  as 
  Scutellae 
  

   [from 
  their 
  form 
  only] 
  by 
  some 
  of 
  the 
  earlier 
  observers, 
  and 
  their 
  

   conspicuous 
  occurrence 
  in 
  this 
  member 
  gave 
  the 
  original 
  name 
  of 
  

   " 
  Scutella 
  limestone." 
  The 
  thickness 
  of 
  the 
  formation 
  averages 
  

   from 
  twenty 
  to 
  thirty 
  feet. 
  It 
  is 
  quite 
  extensively 
  worked 
  for 
  

   lime 
  burning 
  near 
  Kondout 
  and 
  Whiteport 
  and 
  affords 
  excellent 
  

   lime. 
  In 
  plate 
  5 
  there 
  are 
  shown 
  some 
  of 
  its 
  features 
  in 
  a 
  quarry 
  

   near 
  Kondout. 
  

  

  The 
  Becraft 
  limestone 
  extends 
  in 
  a 
  narrow 
  but 
  continuous 
  

   band 
  entirely 
  through 
  the 
  eastern 
  part 
  of 
  the 
  county. 
  Its 
  most 
  

   prominent 
  exposures 
  are 
  between 
  Saugerties 
  and 
  Kondout, 
  and 
  

   about 
  Wilbur 
  and 
  Whiteport. 
  It 
  is 
  rarely 
  seen 
  to 
  the 
  south- 
  

   westward 
  where 
  an 
  outcrop 
  at 
  Millhook 
  and 
  another 
  a 
  mile 
  south- 
  

   west 
  of 
  High 
  Falls 
  are 
  the 
  principal 
  exposures. 
  

  

  Lower 
  Shaly 
  limestone. 
  — 
  This 
  formation 
  is 
  precisely 
  similar 
  to 
  

   the 
  upper 
  Shaly 
  beds 
  and 
  the 
  two 
  members 
  are 
  co-extensive 
  in 
  

   Ulster 
  county. 
  The 
  thickness 
  averages 
  from 
  sixty 
  to 
  seventy 
  

   feet 
  throughout. 
  The 
  very 
  rough 
  little 
  ridges 
  to 
  which 
  this 
  

   formation 
  gives 
  rise 
  are 
  particularly 
  conspicuous 
  in 
  the 
  Binne- 
  

   water 
  region 
  where 
  they 
  are 
  repeated 
  by 
  many 
  small 
  folds 
  and 
  

   are 
  very 
  steep 
  and 
  craggy. 
  The 
  beds 
  are 
  extensively 
  exposed 
  

  

  