﻿

  NEW 
  l'ORK 
  STATE 
  MUSI 
  

  

  Hand 
  in 
  hand 
  wiili 
  iliis 
  eastward 
  decrease 
  in 
  the 
  thickness 
  of 
  

  

  the 
  ''' 
  ! 
  ftpid 
  increase 
  in 
  the 
  thickness 
  of 
  the 
  Utica 
  and 
  

  

  While 
  the 
  combined 
  thickness 
  of 
  Utica 
  and 
  Lor- 
  

  

  raine 
  sbales 
  in 
  a 
  well 
  ai 
  Rochester, 
  Monroe 
  <•<>.. 
  amounted 
  to 
  only 
  

  

  et, 
  iln- 
  two 
  formations 
  were 
  found 
  to 
  measure 
  at 
  Chitten- 
  

  

  ango, 
  32 
  tnilefl 
  we»i 
  of 
  Qtica 
  md 
  640 
  feel 
  respectively 
  (46). 
  

  

  Walcnu 
  reports 
  a 
  thickness 
  of 
  Tin 
  feel 
  for 
  the 
  Qtica 
  shale 
  at 
  

  

  Utica; 
  and 
  in 
  the 
  section 
  along 
  Morphy 
  creek 
  to 
  the 
  top 
  of 
  

  

  Ail.-i.ahr 
  hill 
  between 
  Oranesyille 
  and 
  Amsterdam, 
  Prosser 
  (56: 
  

  

  649) 
  found 
  L160 
  feel 
  (the 
  Trenton 
  limestone 
  measures 
  there 
  only 
  

  

  - 
  1 
  fee*)- 
  to 
  the 
  well-boring 
  a1 
  Altamonl 
  175 
  feet 
  of 
  shale 
  

  

  ween 
  bhe 
  Upper 
  Siluric 
  and 
  Trenton 
  limestone 
  was 
  found; 
  and 
  

  

  in 
  Washington 
  county 
  the 
  thickness 
  of 
  the 
  "Hudson 
  river 
  

  

  shales" 
  haa 
  been 
  estimated 
  by 
  Walcott 
  at 
  5000 
  feet 
  (36a). 
  1 
  

  

  Thia 
  decrease 
  of 
  the 
  Trenton 
  limestone 
  eastward 
  of 
  Trenton 
  

   Falls 
  and 
  the 
  increase 
  of 
  the 
  superjacent 
  shales 
  are, 
  however, 
  not 
  

   to 
  •"' 
  anderstood 
  as 
  implying 
  that 
  the 
  ahaly 
  facies 
  of 
  the 
  Trenton 
  

   limestone, 
  specially 
  the 
  Nunnans 
  kill 
  shale, 
  gradually 
  replaces 
  the 
  

   calcareoua 
  facies, 
  for 
  the 
  Utica 
  shale 
  has 
  been 
  found 
  everywhere 
  

   in 
  the 
  Mohawk 
  valley 
  to 
  rest 
  on 
  the 
  Trenton 
  limestone, 
  and 
  the 
  

   Normans 
  kill 
  fauna 
  is 
  as 
  ye1 
  unknown 
  west 
  of 
  the 
  Hudson 
  river 
  

   v;,ll, 
  '. 
  v: 
  ,,nI 
  ' 
  n 
  certainly 
  shows 
  that 
  either 
  the 
  conditions 
  for 
  the 
  

   formation 
  of 
  calcareoua 
  deposita 
  throughout 
  Trenton 
  time 
  became 
  

   less 
  favorable 
  inward 
  the 
  east, 
  and 
  hence 
  the 
  calcareous 
  forma- 
  

  

  em 
  Dot 
  to 
  be 
  verified 
  by 
  later 
  observers. 
  Dale 
  (44) 
  

  

  d 
  the 
  dwindling 
  ia 
  the 
  thickness 
  of 
  the 
  Hudson 
  rive- 
  shales 
  in 
  the 
  

  

  of 
  the 
  Hudson 
  to 
  "400 
  feel 
  and 
  possibly 
  even 
  u<mi 
  feet". 
  This 
  

  

  attributed 
  to 
  a 
  replacement 
  of 
  the 
  shales 
  by 
  grits 
  or 
  an 
  

  

  ' 
  ' 
  1| 
  " 
  former 
  before 
  the 
  deposition 
  of 
  the 
  latter. 
  The 
  same 
  cause 
  

  

  probably 
  explaining 
  his 
  low 
  estlmaties 
  nooo 
  to 
  i*oo 
  feet) 
  

  

  an 
  of 
  the 
  Blate 
  belt 
  In 
  his 
  last 
  paper 
  (03:179). 
  Kimball 
  

  

  i 
  found 
  in 
  Columbia 
  county 
  only 
  1286 
  Peel 
  of 
  Hudson 
  river 
  Bhales, 
  

  

  may 
  have 
  been 
  reduced 
  by 
  subsequent 
  erosion. 
  

  

  ■I 
  that 
  only 
  the 
  Normans 
  kill 
  graptolites 
  have 
  been 
  

  

  '•"■ 
  '" 
  • 
  ,1 
  " 
  above 
  mentl 
  1 
  Hudson 
  river 
  shales 
  and 
  slates; 
  

  

  and 
  this 
  1200 
  reel 
  represents 
  only 
  the 
  thickness 
  of 
  the 
  Norm; 
  

  

  still 
  to 
  be 
  followed 
  by 
  the 
  overlying 
  formations, 
  middle 
  

   upper 
  Trenton, 
  Dtica 
  and 
  Lorraine 
  shales, 
  this 
  would 
  bring 
  the 
  thick- 
  

   ' 
  ""• 
  '•"' 
  i 
  ''" 
  tearer 
  to 
  the 
  figure 
  given 
  by 
  Ashbumer. 
  

  

  