Pennsylvania Geological Survey - Historical Photographs

Active Filters:
  • Date = 1923-08-22
  • Subject = Stratigraphy

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Contributing Institution
Bedding and faulting in Carlim limestone
Bedding and faulting in Carlim limestone
Stratigraphy
Bedding and faulting in Carlim limestone. Just west of big fault one quarter mile southeast of Birmingham., 20-18
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
Gatesburg quartzite
Gatesburg quartzite
Stratigraphy
Gatesburg quartzite just beyond first viaduct below Birmingham., 20-22
Glass sand quarry and plant (Oriskany sandstone)
Glass sand quarry and plant (Oriskany sandstone)
Stratigraphy
Glass sand quarry and plant (Oriskany sandstone), about one mile above Mapleton Depot., 20-40
Helderburg-Tonoloway limestone
Helderburg-Tonoloway limestone
Stratigraphy
Helderburg-Tonoloway limestone (contact six feet to right of recess),Tyrone (Ward House garden in foreground)., 20-5
Railroad cut in Bellefonte (?) dolomite
Railroad cut in Bellefonte (?) dolomite
Stratigraphy
Railroad cut in Bellefonte (?) dolomite. Brush Mountain in background, Union Furnace., 20-29
Thrust fault Warrior (mid Cambrian) on Carlim (lower Mohawk)
Thrust fault Warrior (mid Cambrian) on Carlim (lower Mohawk)
Stratigraphy
Thrust fault Warrior (mid Cambrian) on Carlim (lower Mohawk), one quarter mile southeast of Birmingham., 20-19
Tuscarora cliff (cliff obscured by trees)
Tuscarora cliff (cliff obscured by trees)
Stratigraphy
Tuscarora cliff (cliff obscured by trees). Tuscarora here is conglomeratic. Shade Gap, Huntingdon County., 20-41