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

Geologic units in Delaware county, New York

Unadilla, Laurens, New Lisbon, and Gilboa Formations (Middle Devonian) at surface, covers 2 % of this area

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

Lithology: shale; siltstone; sandstone

Moscow Formation (Middle Devonian) at surface, covers 15 % 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

Honesdale Formation (Upper Devonian) at surface, covers 5 % of this area

Honesdale Formation - sandstone, shale.

Lithology: sandstone; shale

Beers Hill, Dunn Hill, Millport, and Moreland Shales (Upper Devonian) at surface, covers < 0.1 % of this area

Beers Hill, Dunn Hill, Millport, and Moreland Shales.

Lithology: shale; black shale

Lower Walton Formation (Upper Devonian) at surface, covers 30 % of this area

Lower Walton Formation - shale, sandstone, conglomerate.

Lithology: shale; sandstone; conglomerate

"Enfield" and Kattel Formations (Upper Devonian) at surface, covers 0.5 % of this area

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

Lithology: shale; siltstone; sandstone

Upper Walton Formation (Upper Devonian) at surface, covers 38 % of this area

Upper Walton Formation - shale, sandstone, conglomerate.

Lithology: shale; sandstone; conglomerate

Oneonta Formation (Middle - Upper Devonian) at surface, covers 1 % of this area

Oneonta Formation - shale, sandstone, conglomerate.

Lithology: shale; sandstone; conglomerate

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

Catskill Formation - Grayish-red sandstone, siltstone, shale, and mudstone; locally conglomeratic; contains gray sandstone in upper part; lithologies arranged in fining-upward cycles; equivalent to the Hampshire Formation south of Pennsylvania.

Lithology: sandstone; siltstone; shale; mudstone; conglomerate

Slide Mountain Formation (Upper Devonian) at surface, covers 7 % of this area

Slide Mountain Formation - sandstone, shale, conglomerate.

Lithology: sandstone; shale; conglomerate