﻿84 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  It 
  should 
  be 
  pointed 
  out 
  that 
  the 
  possible 
  exceptions 
  in 
  the 
  

   cases 
  of 
  the 
  outliers 
  along 
  the 
  eastern 
  side 
  of 
  the 
  Paradox 
  Lake 
  

   quadrangle, 
  as 
  well 
  as 
  those 
  of 
  the 
  Ticonderoga 
  quadrangle 
  and 
  

   to 
  the 
  east 
  of 
  Lake 
  George, 
  all 
  lie 
  close 
  to 
  the 
  general 
  Paleozoic 
  

   rock 
  area 
  and 
  in 
  that 
  portion 
  of 
  the 
  southern 
  Adirondacks 
  upon 
  

   which 
  the 
  late 
  Cambric 
  sea 
  first 
  encroached 
  and 
  where 
  the 
  topog- 
  

   raphy 
  was 
  most 
  rugged 
  so 
  that 
  it 
  is 
  quite 
  possible 
  that 
  local 
  

   embayments 
  receiving 
  Cambric 
  sediments 
  did 
  there 
  exist. 
  

  

  Iti 
  the 
  cases 
  of 
  all 
  the 
  other 
  and 
  important 
  outliers 
  there 
  does 
  

   not 
  appear 
  to 
  be 
  any 
  direct 
  evidence 
  favoring 
  the 
  existence 
  of 
  

   embayments 
  nor 
  any 
  need 
  for 
  such 
  an 
  explanation 
  to 
  account 
  for 
  

   the 
  phenomena 
  of 
  the 
  outliers. 
  Simple 
  downfaulting 
  of 
  the 
  

   Paleozoic 
  strata 
  has 
  often 
  carried 
  masses 
  of 
  these 
  so 
  far 
  down 
  

   that 
  remnants 
  have 
  been 
  protected 
  from 
  complete 
  removal 
  by 
  

   subsequent 
  erosion. 
  As 
  already 
  shown 
  the 
  southern 
  Adiron- 
  

   dack 
  region 
  was, 
  by 
  the 
  beginning 
  of 
  the 
  Potsdam, 
  worn 
  down 
  

   to 
  a 
  peneplain 
  upon 
  whose 
  surface 
  only 
  a 
  few 
  very 
  minor 
  irregu- 
  

   larities 
  existed. 
  This 
  being 
  the 
  case, 
  anything 
  like 
  prominent 
  

   embayments 
  or 
  estuaries 
  could 
  not 
  possibly 
  have 
  existed. 
  

   Another 
  argument 
  decidedly 
  against 
  the 
  embayment 
  idea 
  comes 
  

   out 
  of 
  the 
  character 
  of 
  the 
  sediments 
  within 
  the 
  outliers. 
  Thus 
  

   the 
  dolomite 
  in 
  the 
  Schroon 
  Lake 
  and 
  Wells 
  outliers 
  is 
  a 
  dis- 
  

   tinctly 
  marine 
  formation 
  of 
  exactly 
  the 
  same 
  character 
  as 
  that 
  

   of 
  the 
  general 
  Paleozoic 
  rock 
  area. 
  Or 
  again, 
  the 
  Canajoharie 
  

   black 
  shale 
  at 
  Wells 
  is 
  both 
  faunally 
  and 
  lithologically 
  distinctly 
  

   marine 
  and 
  precisely 
  like 
  that 
  of 
  the 
  Mohawk 
  valley. 
  Estuarine 
  

   deposits 
  would 
  show 
  certain 
  distinct 
  local 
  variations 
  and 
  hence 
  

   the 
  very 
  uniformity 
  of 
  sediments 
  in 
  the 
  outliers 
  precludes 
  the 
  

   possibility 
  of 
  deposition 
  in 
  estuaries. 
  Thus 
  we 
  are 
  forced 
  to 
  

   conclude 
  that 
  when 
  the 
  early 
  Paleozoic 
  sea 
  encroached 
  upon 
  the 
  

   southern 
  Adirondacks, 
  the 
  shore 
  line 
  was 
  fairly 
  regular, 
  with 
  

   possibly 
  some 
  very 
  small 
  local 
  embayments 
  along 
  the 
  eastern 
  

   side, 
  and 
  that 
  a 
  general 
  mantle 
  of 
  sediments 
  was 
  deposited 
  over 
  

   the 
  whole 
  southeastern 
  Adirondack 
  region. 
  

  

  Extent 
  of 
  the 
  Cambric 
  seas. 
  Nearly 
  all 
  the 
  Paleozoic 
  outliers 
  

   show 
  the 
  presence 
  of 
  Potsdam 
  sandstone, 
  and 
  in 
  the 
  few 
  cases 
  

   where 
  it 
  does 
  not 
  actually 
  outcrop 
  it 
  is 
  most 
  likely 
  present 
  

   though 
  concealed 
  from 
  view. 
  In 
  the 
  southern 
  Adirondacks 
  no 
  

   Potsdam 
  sandstone 
  outcrops 
  west 
  of 
  a 
  nearly 
  straight 
  northeast- 
  

   southwest 
  line 
  passing 
  through 
  the 
  outliers 
  at 
  or 
  near 
  North 
  

   Hudson 
  (No. 
  1), 
  North 
  River 
  (No. 
  6), 
  Wells 
  (No. 
  8), 
  and 
  

  

  