Stratigraphic Section for Southwestern New York State
Stratigraphic Section for Southwestern New York State

Period
Group
Unit
Lithology
Penn.
  Pottsville
Olean
.   Quartz pebble conglomerate
& sandstone, quartz pebble,
conglomerate, sandstone & minor shale.
Miss.
  Pocono
Knapp
.  
Dev.
Upper Conewango   .   Shale & sandstone,
scattered conglomerates.
Conneaut
Chadakoin
.   Shale & siltstone,
scattered conglomerates.
Canadaway
Undifferentiated1
.
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Shale & siltstone
Minor sandstone
Perrysburg2
.
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Shale & siltstone
Minor sandstone
West Falls
Java
Nunda
Rhinestreet
.

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Shale & siltstone

Argilleceous limestone
Sonyea
Middlesex
.
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Shale & siltstone
Genesee   .   Shale with minor
siltstone & limestone
Middle  
Tully
.
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Limestone with minor
siltstone & sandstone.
Hamilton
Moscow
Ludlowville
Skaneateles
Marcellus
.


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Shale with minor
sandstone & conglomerate.
 
Onondaga
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Lower Tristates
Oriskany
 
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Sandstone
Helderberg
Manilius
Rondout
.   Limestone & dolostone
Sil.
Upper  
Akron
.
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Dolostone
Salina
Camillus
Syracuse
Vernon
.

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Shale, siltstone,

anhydrite & halite
Lockport
Lockport
.
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Limestone & dolostone
Clinton
Rochester
Irondequoit
.   Shale & sandstone
Lower
Sodus
Reynales
Thorold
.   Limestone & dolostone
Medina
Grimsby
Whirlpool
.
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Sandstone & shale
Quartz sandstone
Ord.
Upper  
Queenston
Oswego
Lorraine
Utica
.
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Shale & siltstone

with minor sandstone
Middle Trenton -
Black River
Trenton
Black River
.
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Limestone and minor dolostone.
Lower Beekmantown
Tribes Hill
Chuctanunda
.   Limestone
Camb. Upper  
Little Falls
Galway (Theresa)
Potsdam
.
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Quartz sandstone & dolostone;
sandstone &
sandy dolomite;
conglomerate base
PreCamb.
 
Gneiss, Marble,
Quartzite, etc...
.   Metamorphic &
igneous rocks

1 - Includes: Glade, Bradford 1st, Chipmunk, Bradford 2nd, Harrisburg Run, Scio, Penny and Richburg.
2 - Includes: Bradford 3rd, Humphrey, Clarksville, Waugh & Porter, and Fulmer Valley.
Symbols
greendot.gif - 366 Bytes - Oil producing
redball.gif - 326 Bytes - Gas producing
ylball.gif - 1012 Bytes - Salt producing