Pennsylvania Geological Survey - Historical Photographs

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  • Subject = Stratigraphy
  • Location Covered = Jefferson

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
Displaying 23 items
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Carlim limestone (at back) wall of Lemont at left (not mined here)
Carlim limestone (at back) wall of Lemont at left (not mined here)
Stratigraphy
Carlim limestone (at back) wall of Lemont at left (not mined here). Note curve of strata beginning of overturn. Just northeast of location of negative no. 1138., 20-9
Connoquenessing sandstone
Connoquenessing sandstone
Stratigraphy, Sedimentation
Connoquenessing sandstone. Railroad cut near Humphrey's clay quarry, Brookville.
Cut near Humphries clay quarry
Cut near Humphries clay quarry
Stratigraphy
Cut near Humphries clay quarry, Brookville. Connoquenessing sandstone.
Detached boulder of Homewood (?) sandstone
Detached boulder of Homewood (?) sandstone
Stratigraphy, Sedimentation
Detached boulder of Homewood (?) sandstone. New road running west of Brookville, and two miles west.
Exposure in railroad cut at Patton Station
Exposure in railroad cut at Patton Station
Stratigraphy
Exposure in railroad cut at Patton Station. This may be Pocono sandstone
Humphrey Clay and Shale Quarry
Humphrey Clay and Shale Quarry
Stratigraphy
Humphrey Clay and Shale Quarry, Port Barnett, Brookville quadrangle
Humphrey Clay and Shale Quarry
Humphrey Clay and Shale Quarry
Stratigraphy
Humphrey Clay and Shale Quarry, Port Barnett, Brookville quadrangle (note 4 coal beds)
Humphrey Clay and Shale Quarry
Humphrey Clay and Shale Quarry
Stratigraphy
Humphrey Clay and Shale Quarry, Port Barnett, Brookville quadrangle
Humphrey Clay and Shale Quarry
Humphrey Clay and Shale Quarry
Stratigraphy
Humphrey Clay and Shale Quarry, Port Barnett, Brookville quadrangle
Mercer shale along Route 28
Mercer shale along Route 28
Stratigraphy
Mercer shale along Route 28, about one mile east of Summerville, Brookville quadrangle
Mercer shales exposed along Route 28
Mercer shales exposed along Route 28
Stratigraphy
Mercer shales exposed along Route 28, 3/4 mile east of Summerville, Red Bank Creek. The dip is mainly the plunge of the Fairmont syncline
Mercer shales overlain by Homewood sandstone
Mercer shales overlain by Homewood sandstone
Stratigraphy
Mercer shales overlain by Homewood sandstone, 3/4 mile east of Summerville along Route 28
Middle Kittanning and strata
Middle Kittanning and strata
Stratigraphy
Middle Kittanning and strata above and below., Note changing thickness of beds below.
Pottsville in railroad cut
Pottsville in railroad cut
Stratigraphy
Pottsville in railroad cut, one and one half miles east of Baxter.
Pottsville in railroad cut (at base)
Pottsville in railroad cut (at base)
Stratigraphy
Pottsville in railroad cut (at base). Brookville coal horizon, one and one half miles east of Baxter. Clarion sandstone, unconformable, above Brookville.
Pottsville sandstone (probably Upper Connoquenessing)
Pottsville sandstone (probably Upper Connoquenessing)
Stratigraphy
Pottsville sandstone (probably Upper Connoquenessing) in Garrison's Cut, Pennsylvania Railroad east of Brookville
Railroad cut near Humphries clay quarry
Railroad cut near Humphries clay quarry
Stratigraphy
Railroad cut near Humphries clay quarry in Connoquenessing sandstone. Brookville, Pa.
Sandstone boulders (Pottsville)
Sandstone boulders (Pottsville)
Stratigraphy
Sandstone boulders (Pottsville) on hill slope west of Moore's Bridge at benchmark 1460. Warsaw Township, Brookville quadrangle
Shows Middle Kittanning and strata
Shows Middle Kittanning and strata
Stratigraphy
Shows Middle Kittanning and strata above and below. Roadcut on new highway, one mile northeast of Baxter., Note changing thickness of beds below.
Upper Freeport limestone
Upper Freeport limestone
Stratigraphy
Upper Freeport limestone. Small pit on Shaffer Farm, one and one-fourth miles west of Worthville