Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

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Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

Antiformal fold defined by graywacke bed, Martinsburg Formation

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Autochthonous basal limestones of the Martinsburg Formation

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Bedding/transport surface

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Box fold, developed above a thrust in Martinsburg

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Detrital character of Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Dolomite beds, boudinaged

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Dolomite beds, boudinaged

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Epler/Myerstown with S0 all in S1

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Epler/Myerstown with S0 all in S1

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Fold noses with limbs sheared out

Subject	Structure-Folds
Creator	Root, Samuel I.
Date	1972-09-21

Isoclinal folds in basal Martinsburg Formation

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Isoclinal fold, syngenetic folds reclined

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Isoclinal syngenetic reclined folds

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Isoclinal syngenetic reclined fold, view down hinge

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Kink bands on S1/S3 cleavage, Martinsburg Formation

Subject	Structure-Kink Bands
Creator	Root, Samuel I.
Date	1972-09-21

Kink folds and gash fracture en-echelon, Epler Formation

Subject	Structure-Kink Bands
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation allochthonous red beds

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation limestone conglomerate, allochthonous

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation, platy argillaceous limestones, allochthonous

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation, platy limestone

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation, platy limestone

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation, platy limestone, allochthonous

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Martinsburg Formation red beds

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Pens outline two fold hinges, Epler Formation

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Pinnacles developed on Rockdale Run Formation limestone

Subject	Geomorphology
Creator	Root, Samuel I.
Date	1972-09-21

Recent mud cracks after Agnes

Subject	Sedimentation
Creator	Root, Samuel I.
Date	1972-09-21

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

S0-S1

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Sheared out limbs of folds developed in Martinsburg allochthonous graywackes

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

St. Paul Formation with reorientations due to Yellow Breeches thrusting

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Structure

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Structure

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Structure-joints

Subject	Structure-Joints
Creator	Root, Samuel I.
Date	1972-09-21

Structure-joints

Subject	Structure-Joints
Creator	Root, Samuel I.
Date	1972-09-21

Subhorizontal with slicks parallel to Yellow Breeches movement

Subject	Structure-Faults
Creator	Root, Samuel I.
Date	1972-09-21

Syngenetic reclined folds in Martinsburg Formation graywackes

Subject	Structure-Folds
Creator	Root, Samuel I.
Date	1972-09-21

Syngenetic reclined folds in Martinsburg Formation graywackes

Subject	Structure-Folds
Creator	Root, Samuel I.
Date	1972-09-21

Syngenetic reclined folds in Martinsburg graywackes

Subject	Structure-Folds
Creator	Root, Samuel I.
Date	1972-09-21

Syngenetic upright folds

Subject	Structure-Folds
Creator	Root, Samuel I.
Date	1972-09-21

Syngenetic upright folds in Myerstown/Martinsburg Formation

Subject	Structure-Folds
Creator	Root, Samuel I.
Date	1972-09-21

Triassic fanglomerate, all limestone clasts

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Triassic limestone fanglomerate

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Two sets of folds in Epler Formation

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

View of quarry with discontinuous Epler beds

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Yellow Breeches fault

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21