Pennsylvania Geological Survey - Historical Photographs

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  • Subject = Structure-Folds
  • Date = 1972-09-21

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Fold noses with limbs sheared out
Fold noses with limbs sheared out
Structure-Folds
Fold noses with limbs sheared out, Martinsburg graywackes
Syngenetic reclined folds in Martinsburg Formation graywackes
Syngenetic reclined folds in Martinsburg Formation graywackes
Structure-Folds
Syngenetic reclined folds in Martinsburg Formation graywackes. Cuts of Penn Central Railroad at confluence Conodoguinet and Susquehanna, Wormleysburg Borough
Syngenetic reclined folds in Martinsburg Formation graywackes
Syngenetic reclined folds in Martinsburg Formation graywackes
Structure-Folds
Syngenetic reclined folds in Martinsburg Formation graywackes, Wormleysburg
Syngenetic reclined folds in Martinsburg graywackes
Syngenetic reclined folds in Martinsburg graywackes
Structure-Folds
Syngenetic reclined folds in Martinsburg graywackes, Wormleysburg, Pa.
Syngenetic upright folds
Syngenetic upright folds
Structure-Folds
Syngenetic upright folds
Syngenetic upright folds in Myerstown/Martinsburg Formation
Syngenetic upright folds in Myerstown/Martinsburg Formation
Structure-Folds
Syngenetic upright folds in Myerstown/Martinsburg Formation. Pennsy Supply Quarry at Bowmansdale, Upper Allen Township