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

Conglomerate in Mauch Chunk

Subject	Stratigraphy Sedimentation
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10-21

Conglomerate near base of Tuscarora

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

Conglomerate rock in Mauch Chunk Formation

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

Conglomerate transverse to bedding

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Connellsville sandstone

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

Connellsville sandstone

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

Connellsville sandstone cliff along Dunbar Creek

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

Connoquenessing sandstone

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

Connoquenessing sandstone (?)

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

Conococheague Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1956

Conococheague limestone, top view of cryptozoons

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1953

Contact

Subject	Stratigraphy
Creator	Moseley, John Reed

Contact between Myerstown and Annville limestone

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1956

Contact between the Oswayo and Cattaraugus Formations

Subject	Stratigraphy
Creator	Shaffner, Marchant N. (Marchant Nissley), 1897-1990
Date	1937-05-28

Contact between Triassic (left) and limestone (right)

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Contact between Triassic left, and Paleozoic limestone on right

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Contact between Tuscarora on right of center and Juniata left of center


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

Contact just above bag - Oswego and Martinsburg

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-29

Contact of Dm and Don

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-06-25

Contact of Don and Do

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-06-22

Contact of Don and Do, a disconformity at hammer

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-06-22

Contact of eroded upper surface of Mauch Chunk red beds

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1933-08-01

Contact of flaggy Chemung sandstone

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1931-05-01

Contact of Juniata with Tuscarora

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

Contact of Myerstown and Annville limestone

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1956

Contact of red Mauch Chunk shale and green sandy beds

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-08-10

Contact Silurian-Ordovician, Oswegon-Martinsburg

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-29

Contorted limestone

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

Cornwall Railroad cut, Buffalo Springs Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1961-02

Crag of Pottsville conglomerate cropping out on end of Sharp Mountain

Subject	Stratigraphy

Crest of Third Mountain near western end

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

Cross-bedded Browntown sandstone

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

Cross-bedded Catskill sandstone

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-07-01

Cross-bedding and sharp roll in rocks

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1922-07-28

Cross-bedding in Birmingham shale

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

Cross-bedding in Birmingham shale and sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1926-05-24

Cross-section of sinkhole

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Cross-section of sinkholes

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Crushed and molded

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

Cryptozoon, Millbach Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1958

Cryptozoon reef in Schaefferstown limestone

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1953

Cryptozoons

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-29

Cryptozoons below Freemansburg

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-31

Cumberland City Reservoir

Subject	Stratigraphy
Creator	Cleaves, Arthur B. (Arthur Bailey), 1905-1985
Date	1936-08

Cumberland City Reservoir Dam

Subject	Stratigraphy
Creator	Cleaves, Arthur B. (Arthur Bailey), 1905-1985
Date	1936-07-13

Cut near Humphries clay quarry

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-08-05

Dalmatia Member of Mahantango Formation

Subject	Stratigraphy
Creator	Hoskins, Donald M.
Date	1964

Dark, fissile shale above Brush Creek limestone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1924-08-30

Decayed Triassic conglomerate quartz pebbles

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-30

Decayed Triassic conglomerate quartz pebbles in soil and sand

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-30