Amsterdam Limestone
The Amsterdam Limestone is a geologic formation in New York. It dates back to the Ordovician period. It is a unit of the Black River Group in Eastern New York.[1]
| Amsterdam Limestone | |
|---|---|
| Stratigraphic range: Late Ordovician | |
| Type | Formation |
| Unit of | Black River Group |
| Underlies | Trenton Group Glens Falls Formation |
| Overlies | Lowville Formation |
| Lithology | |
| Primary | Limestone |
| Location | |
| Region |  New York |
| Country |  United States |
| Type section | |
| Named for | Amsterdam, New York |
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