Pennsylvania Geological Survey - Historical Photographs

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  • Subject = Structure-Faults

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This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Limestone quarry showing apparent end of slickensided fault
Limestone quarry showing apparent end of slickensided fault
Structure-Faults
Limestone quarry showing apparent end of slickensided fault. Below Billmeyer. Date of photograph not known. George Ashley's tenure with the Survey, 1919-1946.
Limestone quarry showing slickensided face
Limestone quarry showing slickensided face
Structure-Faults
Limestone quarry showing slickensided face, southeast of Billmeyer. Date of photograph not known. George Ashley's tenure with the Survey, 1919-1946.
Little Mountain fault
Little Mountain fault
Structure-Faults
Little Mountain fault. View west.
Little Mountain fault surface
Little Mountain fault surface
Structure-Faults
Little Mountain fault surface. Cathcart (Stanley) on grooved face.
Llewellyn Formation exposed at the faulted Tremont syncline
Llewellyn Formation exposed at the faulted Tremont syncline
Structure-Faults
Llewellyn Formation exposed at the faulted Tremont syncline just north of exit 33 on Interstate 81
Llewellyn Formation exposed at the faulted Tremont syncline
Llewellyn Formation exposed at the faulted Tremont syncline
Structure-Faults
Llewellyn Formation exposed at the faulted Tremont syncline just north of exit 33 on Interstate 81
Local faults and crossbedding in Morgantown sandstone
Local faults and crossbedding in Morgantown sandstone
Structure-Faults
Local faults and crossbedding in Morgantown sandstone, horizon opposite McKeesport (across Youghiogheny River)., Same as negative number 467.
Local faults and crossbedding in Morgantown sandstone
Local faults and crossbedding in Morgantown sandstone
Structure-Faults
Local faults and crossbedding in Morgantown sandstone, horizon opposite McKeesport (across Youghiogheny River).
Normal fault cutting Montebello (?)
Normal fault cutting Montebello (?)
Structure-Faults
Normal fault cutting Montebello (?), north end of west side of Swatara Gap
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Structure-Faults
Pottsville and Mauch Chunk Formations exposed in faulted syncline in road cut through Spring Mountain on Interstate 80, eight hundred yards west of exit 39
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Structure-Faults
Pottsville and Mauch Chunk Formations exposed in faulted syncline in road cut through Spring Mountain on Interstate 80, eight hundred yards west of exit 39
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Structure-Faults
Pottsville and Mauch Chunk Formations exposed in faulted syncline in road cut through Spring Mountain on Interstate 80, eight hundred yards west of exit 39
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Structure-Faults
Pottsville and Mauch Chunk Formations exposed in faulted syncline in road cut through Spring Mountain on Interstate 80, eight hundred yards west of exit 39
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Pottsville and Mauch Chunk Formations exposed in faulted syncline
Structure-Faults
Pottsville and Mauch Chunk Formations exposed in faulted syncline in road cut through Spring Mountain on Interstate 80, eight hundred yards west of exit 39
Same layer of dark limestone shown at (B) cut off by fault
Same layer of dark limestone shown at (B) cut off by fault
Structure-Faults
Same layer of dark limestone shown at (B) cut off by fault. See negative no. 1191, Palmer Lime Company, south of west York., 22-20; hand-drawn illustration (below photograph)
Sharply intersecting faults in Salina rocks
Sharply intersecting faults in Salina rocks
Structure-Faults
Sharply intersecting faults in Salina rocks, pole 152-8 below Mifflin.
Slickensided face T at right angles to contour of hill
Slickensided face T at right angles to contour of hill
Structure-Faults
Slickensided face T at right angles to contour of hill. The marks show the movement to have been nearly vertical. Wygadt cut, 2.3 miles north of easton
Subhorizontal with slicks parallel to Yellow Breeches movement
Subhorizontal with slicks parallel to Yellow Breeches movement
Structure-Faults
Subhorizontal with slicks parallel to Yellow Breeches movement. Penn Central Railroad cuts, in Martinsburg graywackes at confluence Conodoguinet Creek and Susquehanna River
Thrust fault
Thrust fault
Structure-Faults
Thrust fault, railroad cut west of Birmingham Station.
Thrust fault near Hazleton
Thrust fault near Hazleton
Structure-Faults
Thrust fault near Hazleton along Interstate 81