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

Abandoned quarry in Morgantown sandstone

Subject	Stratigraphy
Creator	Hickok, W. O. (William Orville), 1905-
Date	1934-06-01

Abandoned sandstone quarry

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1934-08-21

A coal horizon (Brush Creek) without coal (opposite neck)

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1927-07-12

Acre Rocks on east slope of Big Savage Mountain

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-09-23

Across French Creek at Franklin

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1941-08

Across valley of East Branch of Tuncangwant Creek

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-08-27

Allegheny (?) Formation sandstone

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-08-05

Aloe Coal Company strip pit

Subject	Stratigraphy
Creator	Chubb, Leslie
Date	1972-10-02

Aloe Coal Company strip pit

Subject	Stratigraphy
Creator	Chubb, Leslie
Date	1972-10-02

Alternative figure showing pinching out of beds along dip, also variation in dip

Subject	Stratigraphy
Creator	Bissell, Malcolm H.; Stose, George Willis, 1869-1960
Date

Ames limestone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1922-08-15

Ames limestone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-05-16

Ames limestone along Guyasuta Run

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-06-03

Ames limestone and 12-inch Harlem coal

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-06-04

Ames limestone horizon

Subject	Stratigraphy
Creator	Robinson, J. French, 1890-
Date	1920

An alternative figure showing pinching out of beds

Subject	Stratigraphy
Creator	Bissell, Malcolm H.; Stose, George Willis, 1869-1960
Date

Annville limestone

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1952

Annville limestone

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1952

Annville limestone

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1952

Anorthosite boulders

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1969

Apparent unconformity in Burgoon sandstone


Subject	Stratigraphy Sedimentation
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Apparent unconformity in Burgoon sandstone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-21

Association of State Geologists at unconformity

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-10-13

At base of (Mauch Chunk) (?) crossbedded sandstone etc.

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-21

At bottom fourteen foot unidentified sandstone base

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1941-08

Bald Eagle conglomerate

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Bald Eagle Formation

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-03-07

Bald Eagle-Juniata contact

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-03-05

Bald Eagle sandstone

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1969-05-27

Basal Silurian ledge

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1932-09-02

Base of Catskill (at left of figure) top of Chemung (right)

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-21

Base of Morgantown sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-09-01

Base of Morgantown sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1922-10-15

Base of Morgantown sandstone, Elk Lick coal and clay

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-11-01

Base of Morgantown sandstone, Elk Lick coal and clay

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-11-01

Bastard coal and rooster coal

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-05-30

Baughman Rocks (Homewood sandstone)

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-07-22

Baughman Rocks (Homewood sandstone)

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-07-22

Baughman Rocks (Pottsville conglomerate)

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1936-04-24

Baughman Rocks, Pottsville sandstone, Mount Davis

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-05-22

Beach with wave lines

Date
Subject	Stratigraphy Sedimentation
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Beck and Boale Coal Company

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-09-18

Bedding and faulting in Carlim limestone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-22

Bedding faces

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Beekmantown dolomite railroad cut

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-04-23

Bellefonte Lime Company quarry

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-06-04

Bellefonte Lime Company quarry

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-06-04

Bench of Benwood

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-11-22

Bentonite beds in Trenton limestone

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1932-07-20

Benwood limestone

Subject	Stratigraphy
Creator	Schoeneck, P. S.
Date	Summer 1921