USGS Home
Contact USGS
Search USGS

Mineral Resources > Online Spatial Data > Geology > by state > New York Geology

Geologic units in Genesee county, New York

Marcellus Formation (Middle Devonian) at surface, covers 3 % of this area

Marcellus Formation - Pecksport, Solsville, Otsego, and Chittenango shale and sandstone Members, Cherry Valley Limestone, and Union Springs Shale Members.

Lithology: black shale; limestone; shale; sandstone

Ilion Shale (Upper Silurian) at surface, covers 3 % of this area

Ilion Shale

Lithology: black shale

Onondaga and Bois Blanc Limestones (Middle Devonian) at surface, covers 18 % of this area

Onondaga and Bois Blanc Limestones - In New York: Onondaga Limestone-Seneca, Morehouse (cherty), and Clarence Limestone Members, Edgecliff cherty Limestone Member, local coral bioherms; Bois Blanc Limestone-sandy, thin, discontinous. In Ontario: Dundee Limestone; Lucas Formation-dolostone, limestone (Anderdon); Amherstburg Formation-limestone, dolostone, sandstone (Sylvania); Bois Blanc Formation-dolostone, limestone, sandstone (Springvale).

Lithology: limestone; sandstone; chert

Genesee Group (Upper Devonian) at surface, covers 4 % of this area

Genesee Group - West River Shale; Genundewa Limestone; Penn Yan and Geneseo Shales; North Evans Limestone.

Lithology: shale; limestone; siltstone; black shale

Akron Dolostone (Upper Silurian) at surface, covers 2 % of this area

Akron Dolostone - Bertie Formation-dolostone, shale.

Lithology: dolostone (dolomite); shale

Ludlowville Formation (Middle Devonian) at surface, covers 6 % of this area

Ludlowville Formation - Deep Run Shale, Tichenor Limestone, Wanakah and Ledyard Shales, Centerfield Limestone Members.

Lithology: shale; limestone; sandstone; black shale

Camillus, Syracuse, and Vernon Formations (Upper Silurian) at surface, covers 35 % of this area

Camillus, Syracuse, and Vernon Formations - shale, dolostone, salt, and gypsum.

Lithology: shale; dolostone (dolomite); evaporite; black shale

Angola and Rhinestreet Shales (Upper Devonian) at surface, covers 3 % of this area

Angola and Rhinestreet Shales.

Lithology: shale; black shale

Skaneateles Formation (Middle Devonian) at surface, covers 17 % of this area

Skaneateles Formation - Levanna Shale, Stafford Limestone Members.

Lithology: shale; limestone; black shale

Lower Beers Hill Shale (Upper Devonian) at surface, covers < 0.1 % of this area

Lower Beers Hill Shale - Dunn Hill, Millport, and Moreland Shales.

Lithology: shale

"Enfield" and Kattel Formations (Upper Devonian) at surface, covers 8 % of this area

"Enfield" and Kattel Formations - shale, siltstone, sandstone.

Lithology: shale; siltstone; sandstone