﻿Report 
  of 
  the 
  State 
  Geologist. 
  419 
  

  

  ITtica; 
  and 
  everywhere 
  later 
  deposits, 
  with 
  gradually 
  increasing 
  

   submergence, 
  overlapped 
  the 
  Clinton, 
  and 
  finally 
  the 
  water- 
  

   lime 
  beds 
  were 
  deposited 
  over 
  the 
  entire 
  belt 
  eastward, 
  on 
  

   the 
  Hudson 
  river 
  formation 
  mainly, 
  on 
  the 
  Niagara 
  about 
  Scho- 
  

   harie. 
  Catskill 
  and 
  Rondout, 
  and 
  on 
  the 
  Clinton 
  south 
  of 
  Eon- 
  

   dour. 
  This 
  region 
  had 
  been 
  emerged 
  during 
  all 
  early 
  Salina 
  

   times, 
  and 
  probably 
  also 
  in 
  greater 
  part 
  except 
  locally 
  during 
  

   Niagara, 
  Clinton. 
  Medina 
  and 
  Oneida 
  times. 
  Of 
  course, 
  it 
  is 
  

   possible 
  tha: 
  some 
  or 
  all 
  of 
  the 
  earlier 
  Salina 
  deposits 
  also 
  over- 
  

   lapped 
  more 
  widely 
  and 
  were 
  removed 
  by 
  inter 
  Salina 
  uplift 
  and 
  

   erosion, 
  but 
  of 
  this 
  there 
  is 
  no 
  evidence. 
  

  

  In 
  the 
  region 
  adjoining 
  the 
  Hudson 
  the 
  prominent 
  feature 
  is 
  

   the 
  extended 
  flexing 
  which 
  is 
  shown 
  by 
  the 
  relations 
  in 
  the 
  

   Rosendale 
  region 
  to 
  have 
  taken 
  place 
  at 
  a 
  time 
  preceding 
  Shaw- 
  

   angunk 
  'Oneida-Medina) 
  deposition. 
  There 
  is 
  good 
  evidence 
  also 
  

   in 
  this 
  region 
  that 
  there 
  was 
  no 
  deformation 
  between 
  Shawangunk 
  

   and 
  Clinton 
  deposition, 
  the 
  later 
  being 
  attended 
  by 
  increased 
  sub- 
  

   mergence, 
  which 
  gave 
  rise 
  to 
  the 
  overlap 
  just 
  south 
  of 
  Rondout, 
  

   but 
  of 
  which 
  the 
  original 
  northern 
  limit 
  is 
  not 
  apparent. 
  The 
  

   extent 
  of 
  the 
  following 
  (Niagara) 
  deposition 
  is 
  not 
  determined, 
  

   but 
  its 
  deposits 
  were 
  laid 
  on 
  the 
  eroded 
  flexed 
  Hudson 
  river 
  

   slates. 
  Then 
  followed 
  Salina 
  deposition 
  at 
  the 
  termination 
  of 
  an 
  

   interval 
  of 
  planing 
  of 
  unknown 
  amount 
  represented 
  by 
  the 
  lower 
  

   Salina 
  deposition 
  in 
  western 
  Xew 
  York. 
  Whether 
  the 
  Niagara 
  

   formation 
  was 
  originally 
  deposited 
  over 
  the 
  Clinton 
  from 
  Ron- 
  

   dout 
  southward 
  and 
  removed 
  by 
  the 
  early 
  Salina 
  erosion 
  is 
  not 
  

   known. 
  If 
  it 
  was 
  not, 
  then 
  of 
  course 
  the 
  surface 
  of 
  the 
  Clinton 
  in 
  

   this 
  region 
  was 
  subjected 
  to 
  mere 
  or 
  less 
  erosion 
  during 
  Niagara 
  

   time. 
  The 
  surface 
  < 
  f 
  the 
  Hudson 
  river 
  formation 
  in 
  eastern 
  

   Xew 
  York 
  was 
  subjected 
  by 
  more 
  or 
  less 
  continuous 
  erosion 
  in 
  

   eastern 
  Xew 
  York 
  from 
  the 
  earliest 
  upper 
  Silurian 
  times 
  to 
  the 
  

   ■beginning 
  of 
  the 
  deposition 
  of 
  the 
  waterlime 
  members 
  of 
  the 
  

   Salina 
  and 
  the 
  amount 
  planed 
  off 
  is 
  probably 
  considerable. 
  That 
  

   we 
  have 
  discovered 
  no 
  channels 
  in 
  its 
  surface 
  westward 
  is 
  rather 
  

   remarkable, 
  and 
  the 
  apparent 
  perfect 
  conformity 
  of 
  bedding 
  with 
  

   overlying 
  iormations 
  ir 
  the 
  monoclinal 
  region 
  is 
  quite 
  remark- 
  

   able 
  when 
  we 
  consider 
  1 
  the 
  various 
  uplifts 
  and 
  erosive 
  periods 
  to 
  

   which 
  it 
  has 
  been 
  subjected. 
  

  

  