| State | New York |
|---|---|
| Name | Plattekill and Ashokan Formations |
| Geologic age | Middle Devonian |
| Lithologic constituents | Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone > Shale
|
| Comments | part of Hamilton Group 2600-2800 ft. (790-850 m). |
| References | Fisher, D.W., Isachsen, Y.W., and Rickard, L.V., 1970, Geologic Map of New York State, consisting of 5 sheets: Niagara, Finger Lakes, Hudson-Mohawk, Adirondack, and Lower Hudson, New York State Museum and Science Service, Map and Chart Series No. 15, scale 1:250,000. |
| NGMDB product | |
| Counties | Ulster |