﻿50 
  t 
  KBW 
  YORK 
  si 
  \n: 
  Misr.i 
  \i 
  

  

  thai 
  the 
  Utica 
  beds 
  change 
  toward 
  the 
  Hudson 
  valley 
  in 
  litho- 
  

  

  .:■• 
  character 
  and 
  approach 
  more 
  closely 
  the 
  aspect 
  of 
  the 
  Lor- 
  

   raine 
  beds; 
  and 
  hence 
  the 
  former 
  could 
  not 
  be 
  recognized 
  in 
  this 
  

  

  .'en 
  by 
  their 
  lithologic 
  character, 
  as 
  former 
  geologists 
  have 
  at- 
  

   tempted 
  tO 
  do. 
  

  

  h 
  is 
  farther 
  stated 
  by 
  FV>rd 
  that 
  "the 
  recks 
  at 
  Schenectady 
  

   continue 
  to 
  i 
  1m* 
  eastward 
  to 
  Rexford 
  Flats 
  where 
  a 
  break 
  occurs, 
  

   and 
  from 
  thai 
  point 
  all 
  the 
  way 
  to 
  the 
  Hudson 
  the 
  rocks 
  are 
  

  

  atly 
  tilted. 
  The 
  break 
  here 
  alluded 
  to. 
  Dr 
  Emmons 
  con- 
  

   sidered 
  identical 
  with 
  the 
  fault 
  occurring 
  at 
  Saratoga 
  Springs 
  

   and 
  Bakers 
  falls, 
  and 
  believed 
  it 
  to 
  ]»ass 
  somewhere 
  between 
  Al- 
  

   bany 
  and 
  Schenectady, 
  and 
  to 
  be 
  traceable 
  in 
  its 
  effects 
  as 
  far 
  

   south 
  as 
  Kingston." 
  The 
  demonstration 
  of 
  this 
  break 
  between 
  

  

  the 
  tilted 
  strata 
  of 
  the 
  Hudson 
  river 
  region 
  and 
  the 
  undist 
  urbeil 
  

   bods 
  of 
  the 
  Mohawk 
  valley 
  is 
  of 
  .ureal 
  importance 
  for 
  our 
  investi- 
  

   gation, 
  as 
  it 
  refutes 
  the 
  argument 
  presented 
  by 
  .Mather. 
  Hall 
  and 
  

   Walcott, 
  that 
  the 
  Hudson 
  river 
  beds 
  of 
  the 
  Hudson 
  river 
  region 
  

   are 
  continuous 
  with 
  and 
  can 
  be 
  traced 
  along 
  the 
  'Mohawk 
  valley 
  

   to 
  the 
  Utica 
  and 
  Lorraine 
  beds 
  of 
  that 
  valley. 
  As 
  the 
  lamelli- 
  

   branchs, 
  cited 
  by 
  Hall 
  from 
  Oohoes, 
  and 
  other 
  fossils 
  found 
  by 
  

   the 
  writer 
  at 
  the 
  same 
  locality 
  [see 
  farther 
  on) 
  prove, 
  the 
  Lor- 
  

   raine 
  formation 
  is 
  well 
  represented 
  at 
  the 
  lower 
  Mohawk, 
  while 
  

   <»n 
  tin- 
  western 
  side 
  of 
  the 
  fault, 
  the 
  Utica 
  shale, 
  as 
  claimed 
  by 
  

   Pord, 
  1 
  1 
  1 
  ; 
  i 
  \ 
  be 
  found. 
  Hence 
  t 
  here 
  is 
  no 
  continuity 
  along 
  the 
  lower 
  

   Mohawk, 
  similarity 
  of 
  lithologic 
  characters 
  can, 
  in 
  the 
  great 
  

   mass 
  of 
  similar 
  argillaceous 
  shales, 
  arenaceous 
  shales, 
  saud- 
  

   Btoi 
  and 
  argillites, 
  representing 
  the 
  Hudson 
  river 
  series 
  

  

  of 
  beds 
  in 
  tie- 
  Hudson 
  valley, 
  only, 
  if 
  ever, 
  be 
  relied 
  on 
  in 
  dis- 
  

   1m- 
  formations 
  after 
  the 
  most 
  minute 
  study 
  of 
  these 
  

   lithologic 
  characters. 
  Tl 
  :ription 
  of 
  the 
  localities 
  in 
  an- 
  

  

  Ot 
  her 
  j, 
  bug 
  paper 
  will 
  bear 
  out 
  this 
  statement. 
  

  

  N. 
  H. 
  Darton 
  

  

  iM- 
  fruitful 
  year 
  brought 
  out 
  another 
  discovery 
  of 
  fos- 
  

  

  Hudbon 
  river 
  shales, 
  that 
  by 
  Nelson 
  H. 
  Darton 
  

  

  near 
  Sugar 
  Loaf, 
  21 
  miles 
  southwest 
  of 
  Newburgh 
  and 
  at 
  

  

  