Outcrop of Brallier Formation on north side of Pennsylvania Turnpike, central Bedford County, near Mile Marker 138
Type
sedimentary
Sub-units
Black Creek Siltstone Member,[2] Minnehaha Springs Member[3]
Underlies
Greenland Gap Group and Scherr Formation
Overlies
Harrell Formation
Thickness
1350 to 1800 feet in central PA[4]
Lithology
Primary
shale, sandstone
Location
Region
Appalachian Mountains
Country
United States
Extent
Maryland, Pennsylvania, Virginia, and West Virginia
Type section
Named by
Charles Butts, 1918[4]
The Devonian Brallier Formation is a mapped bedrock unit in Pennsylvania, Maryland, West Virginia, and Virginia.
^Paleozoic Sedimentary Successions of the Virginia Valley & Ridge and Plateau
^Avary, K.L., and Dennison, J.M., 1980, Back Creek Siltstone Member of Devonian Brallier Formation in Virginia and West Virginia: Southeastern Geology, v. 21, no. 2, p. 121-153.
^Lyke, W.L., 1986, The stratigraphy, paleogeography, depositional environment, faunal communities, and general petrology of the Minnehaha Springs Member of the Scherr Formation: Southeastern Geology, v. 26, no. 3, p. 173-192.
^ abButts, Charles, 1918, Geologic section of Blair and Huntingdon Counties, central Pennsylvania: American Journal of Science, 4th series, v. 46, p. 523-537.
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