﻿GEOLOGY 
  OF 
  SARATOGA 
  SPRINGS 
  AND 
  VICINITY 
  75 
  

  

  DEEP 
  KILL 
  SHALE 
  

  

  The 
  Deep 
  Kill 
  shale 
  has 
  not 
  been 
  recognized 
  anywhere 
  on 
  the 
  two 
  

   quadrangles, 
  but 
  since 
  it 
  lies 
  in 
  the 
  stratigraphical 
  series 
  between 
  

   the 
  Schaghticoke 
  and 
  Normanskill 
  shales, 
  it 
  is 
  quite 
  possible 
  that 
  

   small 
  parts 
  of 
  this 
  formation, 
  like 
  that 
  here 
  observed 
  of 
  the 
  Schagh- 
  

   ticoke 
  shale, 
  may 
  have 
  been 
  forced 
  up 
  through 
  the 
  extremely 
  dis- 
  

   turbed 
  belt 
  of 
  Normanskill 
  shales. 
  Also 
  in 
  this 
  case, 
  the 
  finding 
  

   of 
  the 
  characteristic 
  graptolites 
  would 
  furnish 
  the 
  only 
  conclusive 
  

   evidence 
  of 
  its 
  presence, 
  although 
  the 
  lithologic 
  characters 
  of 
  the 
  

   Deep 
  Kill 
  shale 
  are 
  such 
  that 
  where 
  well 
  exposed 
  they 
  are 
  readily 
  

   recognized. 
  

  

  BALD 
  MOUNTAIN 
  LIMESTONE 
  1 
  

  

  At 
  the 
  western 
  foot 
  of 
  Louse 
  hill 
  near 
  the 
  southwestern 
  corner 
  

   of 
  the 
  Georgian 
  area, 
  a 
  belt 
  of 
  dolomite 
  and 
  limestone 
  appears 
  on 
  

   the 
  surface. 
  It 
  can 
  thence 
  be 
  traced 
  northward 
  for 
  about 
  a 
  mile, 
  

   when 
  it 
  disappears 
  under 
  drift 
  but 
  its 
  presence 
  below 
  the 
  latter 
  is 
  

   still 
  indicated 
  through 
  the 
  frequent 
  limestone 
  boulders 
  in 
  the 
  drift 
  

   seen 
  in 
  the 
  stone 
  fences. 
  It 
  then 
  is 
  again 
  well 
  exposed 
  in 
  the 
  ridge 
  

   skirting 
  the 
  west 
  bank 
  of 
  the 
  Batten 
  kill 
  at 
  its 
  bend 
  south 
  of 
  

   Middle 
  Falls, 
  in 
  the 
  village 
  of 
  Middle 
  Falls 
  where 
  it 
  causes 
  the 
  

   fall 
  in 
  the 
  river, 
  and 
  north 
  of 
  Middle 
  Falls 
  in 
  many 
  hillocks 
  pro- 
  

   truding 
  through 
  the 
  drift 
  on 
  both 
  sides 
  of 
  the 
  road 
  from 
  Middle 
  

   Falls 
  to 
  Bald 
  mountain. 
  An 
  excellent 
  locality 
  rich 
  in 
  fossils 
  was 
  

   found 
  by 
  the 
  writer 
  in 
  an 
  abandoned 
  quarry 
  on 
  the 
  north 
  bank 
  of 
  

   the 
  Batten 
  kill 
  a 
  quarter 
  of 
  a 
  mile 
  above 
  the 
  village. 
  In 
  front 
  of 
  

   Bald 
  mountain 
  the 
  beds 
  are 
  now 
  best 
  exposed 
  by 
  the 
  large 
  quarry 
  

   operations 
  which 
  were 
  carried 
  on 
  there 
  formerly 
  to 
  supply 
  the 
  ma- 
  

   terial 
  for 
  two 
  limekilns 
  still 
  standing 
  west 
  of 
  the 
  road 
  skirting 
  the 
  

   mountain 
  on 
  the 
  west. 
  From 
  Bald 
  mountain 
  the 
  beds 
  are 
  traceable 
  

   but 
  half 
  a 
  mile 
  as 
  indicated 
  on 
  the 
  map, 
  but 
  may 
  reappear 
  farther 
  

   north 
  beyond 
  the 
  limits 
  of 
  the 
  sheet. 
  Southward 
  of 
  Louse 
  hill, 
  

   this 
  belt 
  fails 
  completely 
  on 
  the 
  west 
  edge 
  of 
  the 
  Georgian 
  in 
  

   Washington 
  and 
  Rensselaer 
  counties. 
  

  

  This 
  limestone 
  belt 
  is 
  in 
  the 
  neighborhood 
  of 
  Bald 
  mountain, 
  

   that 
  is 
  at 
  the 
  Bald 
  mountain 
  quarries 
  and 
  northward 
  accompanied 
  

   by 
  a 
  conglomerate 
  which 
  we 
  have 
  identified 
  with 
  the 
  Rysedorph 
  

  

  1 
  Grabau 
  in 
  his 
  paper 
  on 
  the 
  Physical 
  and 
  Faunal 
  Evolution 
  of 
  North 
  

   America 
  during 
  Ordovicic, 
  etc. 
  Time 
  (Jour, 
  of 
  Geol. 
  1909) 
  cites 
  a 
  " 
  Bald 
  

   Mt" 
  formation 
  in 
  the 
  correlation 
  table 
  I, 
  p. 
  251, 
  but 
  on 
  reference 
  to 
  the 
  text 
  

   (P- 
  235) 
  it 
  is 
  seen 
  that 
  the 
  "Bald 
  Eagle 
  (Mountain)" 
  conglomerate 
  is 
  meant. 
  

  

  