Lock Haven Formation

Lock Haven Formation
Stratigraphic range: Devonian
Typesedimentary
Unit ofSusquehanna Group
Sub-unitslower shaly member, upper sandy member, Minnehaha Springs Member
UnderliesCatskill Formation
OverliesBrallier Formation
Lithology
Primarysiltstone, shale, sandstone
Otherconglomerate
Location
RegionAppalachian Mountains
CountryUnited States
ExtentPennsylvania
Type section
Named forLock Haven, Pennsylvania
Named byFaill and Wells, 1977[1]
Brachiopod casts in the Lock Haven, Leberfinger Quarry, Sullivan County, PA

The Lock Haven Formation is a Devonian mapped bedrock unit in Pennsylvania, in the Appalachian Mountains of the United States.

  1. ^ Faill, R.T., and Wells, R.B., 1977, Bedrock geology and mineral resources of the Salladasburg and Cogan Station quadrangles, Lycoming County, Pennsylvania, IN Faill, R.T., Wells, R.B., and Sevon, W.D., Geology and mineral resources of the Salladasburg and Cogan Station quadrangles, Lycoming County, Pennsylvania: Pennsylvania Geological Survey Topographic and Geologic Atlas, 4th series, 133cd, p. 32-44, scale 1:24,000