Ames Limestone | |
---|---|
Stratigraphic range:
Carboniferous ~ | |
Type | Member |
Unit of | Conewango Group |
Sub-units | None |
Thickness | 1 - 4' |
Lithology | |
Primary | Limestone |
Location | |
Region | Ohio, Pennsylvania, West Virginia |
Country | United States |
Type section | |
Named for | Amesville, Ohio |
The Ames Limestone is a geologic formation in Ohio, Kentucky, Pennsylvania and West Virginia. It is part of the Conemaugh Group. Formerly know at "Crinoidal Limestone" and "Green Fossiliferous Lime" it was renamed to Ames. [1]
Fossils of Echinoderm, Brachiopod, and Gastropoda are commonly found in the Ames. [2]
The Ames is a thin Marker bed of Limestone and/or Fossiliferous limestone. It marks a transition from a predominantly marine environment to predominantly alluvial environment. The Ames serves as a marker for the boundary for the Casselman Formation and the Glenshaw Formation. [2]