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

Geologic units in Schoharie county, New York

Marcellus Formation (Middle Devonian) at surface, covers 14 % 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

Helderberg Group (Lower Devonian) at surface, covers 8 % of this area

Helderberg Group - West of Albany: Alsen, Becraft, New Scotland, Kalkberg, Coeymans, and Manlius Limestones; Rondout Dolostone. South of Albany: Port Ewen, Alsen thru Manlius Limestones; Rondout Dolostone.

Lithology: limestone; dolostone (dolomite)

Onondaga Limestone (Lower to Middle Devonian) at surface, covers 4 % of this area

Onondaga Limestone - Schoharie Formation-shale, limestone; Carlisle Center Siltstone; Esopus Shale.

Lithology: shale; limestone; siltstone

Moscow Formation (Middle Devonian) at surface, covers 27 % of this area

Moscow Formation - in west: Cooperstown and Portland Point shale and sandstone Members; In east: "Manorkill" and Portland Point shale and sandstone Members.

Lithology: shale; sandstone

Panther Mountain Formation (Middle Devonian) at surface, covers 22 % of this area

Panther Mountain Formation - shale, siltstone, sandstone.

Lithology: shale; siltstone; sandstone

Plattekill and Ashokan Formations (Middle Devonian) at surface, covers 0.6 % of this area

Plattekill Formation - shale, sandstone; Ashokan Formation-shale, sandstone.

Lithology: shale; sandstone

Glenerie Formation (Lower Devonian) at surface, covers < 0.1 % of this area

Glenerie Formation - limestone, chert.

Lithology: limestone; chert; shale; conglomerate

Unadilla, Laurens, New Lisbon, and Gilboa Formations (Middle Devonian) at surface, covers 9 % of this area

Unadilla, Laurens, New Lisbon, and Gilboa Formations - shale, siltstone, sandstone.

Lithology: shale; siltstone; sandstone

Frankfort Formation (Upper Ordovician) at surface, covers 1 % of this area

Frankfort Formation - shale, siltstone.

Lithology: shale; siltstone

Undifferentiated Lower Hamilton Group (Middle Devonian) at surface, covers 2 % of this area

Undifferentiated Lower Hamilton Group - Panther Mountain, Mount Marion, Stony Hollow, and Union Springs shales and sandstones.

Lithology: shale; sandstone; limestone

Cobleskill Limestone (Upper Silurian) at surface, covers 1 % of this area

Cobleskill Limestone; Bertie, Camillus, and Syracuse Formations - shale, dolostone; Brayman Shale.

Lithology: limestone; shale; dolostone (dolomite)

Schenectady Formation (Upper Ordovician) at surface, covers 7 % of this area

Schenectady Formation - graywacke, sandstone, siltstone, shale.

Lithology: graywacke; sandstone; siltstone; shale

Oriskany Formation (Lower Devonian) at surface, covers 1 % of this area

Oriskany Formation - sandstone, arenaceous limestone.

Lithology: sandstone; limestone

Oneonta Formation (Middle - Upper Devonian) at surface, covers 1.0 % of this area

Oneonta Formation - shale, sandstone, conglomerate.

Lithology: shale; sandstone; conglomerate

Lower Walton Formation (Upper Devonian) at surface, covers < 0.1 % of this area

Lower Walton Formation - shale, sandstone, conglomerate.

Lithology: shale; sandstone; conglomerate

Utica Shale (Middle Ordovician) at surface, covers 1 % of this area

Utica Shale

Lithology: black shale