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Stratigraphic Section, SW New York State

Stratigraphic Section of 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 O
G
O
G
Shale & siltstone
Minor sandstone
Perrysburg2 O
G
O
G
Shale & siltstone
Minor sandstone
West Falls Java
Nunda
Rhinestreet


G
Shale & siltstone

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



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

S
Shale, siltstone,

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

G
Shale & siltstone

with minor sandstone
Middle Trenton -
Black River
Trenton
Black River
G Limestone and minor dolostone
Lower Beekmantown Tribes Hill
Chuctanunda
Limestone & dolostone
Camb. Upper Little Falls
Galway (Theresa)
Potsdam

G

G
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.
O: Oil producing
G: Gas producing
S: Salt producing