﻿PAKX 
  2. 
  

  

  GEOLOGIC 
  FORMATIONS 
  OF 
  NEW 
  YORK 
  

  

  New 
  York 
  is 
  the 
  mother 
  state 
  in 
  geologic 
  nomenclature, 
  and 
  

   the 
  names 
  chosen 
  by 
  its 
  early 
  corps 
  of 
  geologists 
  have 
  been 
  

   adopted 
  in 
  a 
  large 
  degree 
  throughout 
  the 
  whole 
  of 
  the 
  United 
  

   States. 
  It 
  has 
  moreover, 
  exposed 
  within 
  its 
  borders, 
  a 
  more 
  com- 
  

   plete 
  and 
  extensive 
  series 
  of 
  the 
  formations 
  below 
  the 
  Carboni- 
  

   ferous 
  and 
  above 
  the 
  base 
  of 
  the 
  Cambrian 
  than 
  any 
  other 
  state 
  in 
  

   the 
  Union. 
  It 
  is 
  therefore 
  evident 
  that 
  a 
  complete 
  and 
  repre- 
  

   sentative 
  collection 
  of 
  the 
  New 
  York 
  rocks 
  is 
  of 
  no 
  small 
  import- 
  

   ance 
  and 
  the 
  description 
  of 
  its 
  formations 
  is 
  a 
  matter 
  of 
  much 
  

   interest. 
  

  

  System 
  

   Carboniferous 
  

  

  Devonian 
  

  

  Synopsis 
  

  

  Group 
  

  

  Chemung-CatsMU 
  

   Portage 
  

  

  Hamilton 
  

  

  Corniferous 
  

   Oriskany 
  

  

  Stage 
  

  

  Glean 
  Conglomerate 
  of 
  Alle- 
  

   gany 
  and 
  Cattaraugus 
  

   counties. 
  This 
  is 
  the 
  

   Pottsville 
  Conglomerate 
  of 
  

   Pennsylvania. 
  

  

  r 
  Portage 
  sandstone 
  

  

  I 
  Naples 
  beds 
  

  

  I 
  Gardeau 
  shale 
  and 
  sandstone 
  

  

  [Cashaqua 
  shale 
  

  

  'Genesee 
  slate 
  

  

  Tully 
  limestone 
  

  

  { 
  Encrinal 
  lim 
  e- 
  

  

  Hamilton 
  I 
  stone 
  

  

  ( 
  Ludlowville 
  shale 
  

   .Marcellus 
  shale 
  

   r 
  Corniferous 
  limestone 
  

   ) 
  Onondaga 
  limestone 
  

   I 
  Schoharie 
  grit 
  

   t 
  Cauda 
  galli 
  grit 
  

  

  Sandstone 
  

  

  