﻿12 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Surface 
  deposits 
  

   very 
  common 
  

   over 
  the 
  State 
  

  

  PERIODS, 
  EPOCHS, 
  AND 
  ROCK 
  FORMATIONS 
  IN 
  NEW 
  YORK 
  

  

  STATE 
  

  

  Recent 
  clay 
  beds, 
  alluvium 
  etc. 
  

   Quaternary 
  «J 
  Pleistocene. 
  Glacial 
  clay, 
  sand, 
  

   gravel, 
  boulders 
  etc. 
  

  

  -■,. 
  r 
  Sands, 
  clays, 
  and 
  gravels 
  on 
  Long 
  Island 
  

  

  Miocene 
  J 
  

  

  Monmouth 
  

  

  Clay 
  and 
  sand 
  on 
  Long 
  and 
  Staten 
  

  

  Islands 
  

  

  Tertiary 
  

  

  Cretacic 
  

  

  Jurassic 
  

   Trias 
  sic 
  

   Permic 
  

   Carbonic 
  

  

  Devon 
  ie 
  

  

  Siluric 
  

  

  I 
  Rockland 
  county 
  

  

  Matawan 
  

   Magothy 
  

   Raritan 
  

  

  Absent 
  (probably) 
  

   Newark 
  sandstone 
  and 
  

  

  Palisade 
  lava 
  

   Absent 
  

   7 
  Olean 
  conglomerate 
  1 
  Allegany 
  and 
  Cattaraugus 
  

   I 
  Cattaraugus 
  shale 
  J 
  counties 
  

  

  r 
  Catskill 
  and 
  Chemung 
  "} 
  Catskills 
  and 
  southwestern 
  

   sandstones 
  J 
  New 
  York 
  

  

  ^ 
  South-central 
  and 
  western 
  

   j 
  New 
  York 
  

  

  East-central 
  to 
  western 
  New 
  York 
  

  

  } 
  

  

  Portage 
  shale 
  and 
  

   sandstones 
  

  

  Genesee 
  shale 
  

  

  Tully 
  limestone 
  

  

  Hamilton 
  shale 
  

  

  Marcellus 
  shale 
  

  

  Onondaga 
  limestone 
  

  

  Oriskany 
  sandstone 
  

   ^Helderberg 
  limestone 
  

  

  Manlius 
  limestone 
  

  

  Rondout 
  water 
  lime 
  

  

  Cobleskill 
  limestone 
  

  

  Salina 
  shales, 
  salt, 
  water- 
  

   lime 
  and 
  Shawangunk 
  

   conglomerate 
  

  

  Lockport 
  and 
  Guelph 
  ^ 
  

   dolomites 
  L 
  Central 
  to 
  western 
  New 
  York 
  

  

  Rochester 
  shale 
  J 
  

  

  Clinton 
  shale, 
  sandstone, 
  

  

  East-central 
  to 
  western 
  

  

  >■ 
  New 
  York 
  and 
  eastern 
  

  

  base 
  of 
  Catskill 
  mountains 
  

  

  Eastern 
  to 
  western 
  New 
  

   York 
  except 
  Shawan- 
  

   gunk 
  in 
  eastern 
  New 
  

   York 
  only 
  

  

  limestone 
  and 
  iron 
  ore 
  

   Medina 
  and 
  Oneida 
  sand- 
  

   stone 
  and 
  conglomerate 
  

  

  ! 
  

  

  Central 
  to 
  western 
  New 
  

  

  York 
  

  

  Central 
  to 
  western 
  New 
  

  

  York 
  

  

  