Mahantango Formation
Geological formation in the United States / From Wikipedia, the free encyclopedia
The Devonian Mahantango Formation is a mapped bedrock unit in Pennsylvania, West Virginia, and Maryland.[1][2][3] It is named for the North branch of the Mahantango Creek in Perry and Juniata counties in Pennsylvania. It is a member of the Hamilton Group, along with the underlying the Marcellus Formation Shale.[4] South of Tuscarora Mountain in south central Pennsylvania, the lower members of this unit were also mapped as the Montebello Formation.[5] Details of the type section and of stratigraphic nomenclature for this unit as used by the U.S. Geological Survey are available on-line at the National Geologic Map Database.[6]
Quick Facts Type, Unit of ...
Mahantango Formation | |
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Stratigraphic range: Givetian, ~387 Ma | |
Type | Geological formation |
Unit of | Hamilton Group |
Sub-units | See: Description |
Underlies | Harrell Shale and West Falls Formation |
Overlies | Marcellus Formation |
Lithology | |
Primary | Shale |
Other | Limestone, Siltstone |
Location | |
Region | Appalachian Basin of eastern North America |
Extent | Maryland, Ohio, Pennsylvania, Virginia, and West Virginia |
Type section | |
Named for | Mahantango Creek |
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