﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  257 
  

  

  The 
  above 
  is 
  a 
  Hamilton 
  fauna 
  and 
  apparently 
  these 
  shales 
  are 
  

   at 
  the 
  top 
  of 
  that 
  formation 
  as 
  shown 
  by 
  the 
  higher 
  rocks. 
  

  

  Succeeding 
  the 
  fossiliferous 
  shales 
  at 
  the 
  foot 
  of 
  the 
  falls 
  are 
  

   bluish 
  and 
  greenish 
  shales 
  (A 
  3 
  ) 
  with 
  some 
  mottled 
  red 
  and 
  green 
  

   shale 
  in 
  the 
  upper 
  part. 
  At 
  an 
  elevation 
  of 
  70 
  feet 
  above 
  the 
  foot 
  

   of 
  the 
  fall 
  is 
  a 
  stratum 
  of 
  red, 
  blocky 
  shale 
  (A 
  4 
  ) 
  succeeding 
  which 
  

   are 
  25 
  feet 
  of 
  alternating 
  red 
  and 
  green 
  shales 
  extending 
  up 
  to 
  a 
  

   massive 
  sandstone 
  which 
  forms 
  the 
  brink 
  of 
  the 
  upper 
  falls. 
  The 
  

   red 
  shale 
  at 
  the 
  base 
  of 
  this 
  zone 
  was 
  taken 
  for 
  the 
  base 
  of 
  the 
  

   Oneonta 
  formation 
  and 
  is 
  so 
  represented 
  on 
  the 
  accompanying 
  

   map. 
  If 
  it 
  represents 
  the 
  same 
  zone 
  as 
  XXX" 
  C 
  5 
  . 
  at 
  the 
  northern 
  

   end 
  of 
  the 
  ridge 
  1.7 
  miles 
  to 
  the 
  northeast 
  then 
  the 
  dip 
  to 
  the 
  sw 
  is 
  

   153 
  feet 
  a 
  mile. 
  

  

  At 
  the 
  top 
  of 
  the 
  falls 
  is 
  a 
  massive 
  reddish 
  gray 
  sandstone 
  (A 
  5 
  ) 
  

   10 
  feet 
  or 
  more 
  in 
  thickness, 
  the 
  top 
  of 
  which 
  is 
  145 
  feet 
  above 
  

   the 
  base 
  of 
  the 
  section. 
  On 
  this 
  massive 
  sandstone 
  are 
  thinner 
  

   bluish 
  sandstones. 
  In 
  the 
  wall 
  of 
  the 
  dam 
  is 
  a 
  large 
  block 
  in 
  

   which 
  are 
  the 
  following 
  species: 
  

  

  1 
  Spwifer 
  granulosus 
  (Con.) 
  H. 
  & 
  C. 
  (?) 
  • 
  (r) 
  

  

  2 
  S. 
  mucronatus 
  (Con.) 
  Hall 
  (rr) 
  

  

  3 
  Clionetes 
  coronata 
  (Con.) 
  Hall 
  (rr) 
  

  

  4 
  CamarotoecMa 
  prolifica 
  (Hall) 
  H. 
  & 
  0. 
  (rr) 
  

  

  5 
  Orthis 
  (Rhipiclomella) 
  vanuxemi 
  Hall 
  (rr) 
  

  

  Farther 
  up 
  the 
  creek 
  are 
  reddish, 
  greenish 
  and 
  mottled 
  shales 
  

   (A 
  6 
  ) 
  which 
  extend 
  to 
  the 
  dam 
  at 
  the 
  lower 
  end 
  of 
  Myosotus 
  lake 
  

   200 
  feet 
  above 
  the 
  base 
  of 
  the 
  section. 
  The 
  above 
  section 
  is 
  

   shown 
  in 
  tabular 
  form 
  in 
  the 
  reproduced 
  diagram. 
  

  

  XXX 
  B 
  1 
  . 
  Two 
  and 
  eight 
  tenths 
  miles 
  to 
  the 
  sse 
  of 
  Rensselaerville 
  

   is 
  a 
  gorge 
  known 
  as 
  Fetter's 
  glen 
  which 
  has 
  been 
  cut 
  by 
  an 
  eastern 
  

   branch 
  of 
  Tenmile 
  creek. 
  The 
  lowest 
  rocks 
  (B 
  2 
  ) 
  which 
  are 
  green 
  

   argillaceous 
  shales 
  occur 
  about 
  80 
  feet 
  higher 
  than 
  the 
  highway 
  

   bridge. 
  Above 
  these 
  occur 
  layers 
  of 
  bluish 
  sandstone 
  with 
  a 
  

   slightly 
  reddish 
  tint, 
  which 
  contain 
  sand 
  holes 
  and 
  plant 
  stems. 
  

   These 
  rocks 
  are 
  referred 
  to 
  the 
  Sherburne 
  formation 
  on 
  account 
  

   of 
  their 
  stratigraphical 
  position, 
  lithological 
  appearance 
  and 
  the 
  

  

  