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The COCORP vibrator truck caravan moving west to east across Coshocton County, Ohio. Shown here are the Vibroseis trucks that served as the source of the ground vibrations. The trucks are more or less identical, with each one vibrating in sync with the others. Multiple trucks were used to increase the energy injected into the ground. One recording truck was used elsewhere to record the signals after they returned to the surface. The photograph was taken by Michael C. Hansen in October 1987. The location is approximate to an area in southern Coshocton County where the seismic line was produced. In the autumn of 1987, the Consortium for Continental Reflection Profiling (COCORP), based at Cornell University in Ithaca,...
An outcrop of Bedford Shale at the Galena Shale, Tile and Brick Company claypit near Galena, Delaware County, Ohio. Unit lithology in this area is shale, siltstone, and sandstone. Bedrock is from the Devonian Geologic Period. The image was made by Michael C. Hansen in 1975.
Brick production at the Galena Shale, Tile and Brick Company kiln operation near Galena, Delaware County, Ohio. Unit lithology in this area is shale, siltstone, and sandstone. Bedrock is from the Devonian Geologic Period. The image was probably taken in the 1970s.
The Ohio State University Economic Geology Seminar class field trip to General Clay Products pit in Falls Gore Township, Hocking County, Ohio. The students are exmining an outcrop of the Pottsville Group. Bedrock is from the Pennsylvanian Geologic Period. James Osborn Fuller is shown in the green hardhat on the left side of the image. The image was made by Michael C. Hansen in 1978.
An outcrop with the Middle Mercer Clay and Lower Mercer Limestone of the Pottsville Group at the General Clay Products Corporation quarry in Falls Gore Township, Hocking County, Ohio. General Clay Products quarried clay for brick production. Bedrock is from the Pennsylvanian Geologic Period. The image was made by Michael C. Hansen in 1978.
A kiln at the Logan Clay Products Company operation in Logan, Hocking County, Ohio. Logan Clay Products manufactures clay sewer pipe, flue lining, decorative chimney tops, and wall coping. The image was probably taken by Horace R. Collins in 1970.
View of a salt wall inside the International Salt Company's mine operation site at Cleveland, Cuyahoga County, Ohio. The darker veins are anhydrite. Ohio's rock-salt deposits are confined to the Salina Group of the Silurian Geologic Period. The F unit of the Salina Group is the principal salt-bearing unit in Ohio and is further subdivided into four units. The F2 unit is mined by the International Salt Company at the Cleveland Mine. The underground mine is operated on a room and pillar system that leaves central pillars of salt to hold up the structure. The image was made by Michael C. Hansen in 1975.
A fault in rock face at the International Salt Company's mine operation site at Cleveland, Cuyahoga County, Ohio. Ohio's rock-salt deposits are confined to the Salina Group of the Silurian Geologic Period. The F unit of the Salina Group is the principal salt-bearing unit in Ohio and is further subdivided into four units. The F2 unit is mined by the International Salt Company at the Cleveland Mine. The underground mine is operated on a room and pillar system that leaves central pillars of salt to hold up the structure. The image was made by Michael C. Hansen in 1985.
The Celotex Corporation gypsum mine facilities at Gypsum in Portage Township, Ottawa County, Ohio. After the gypsum-bearing rock was mined, an in-pit crusher reduced the size of the rocks to 2-3 inches. A conveyor then transported the rock to the plant, where the gypsum was separated from dolomite and shale by heavy-media separation. Commercial gypsum production in Ohio is from the F unit of the Salina Group where the gypsum occurs as nodules, lenses, and massive beds. Bedrock is from the Silurian Geologic Period.
An Ohio Geological Survey Teachers Workshop tour inside the facilities of Bowerston Shale Company operations at Hanover, Licking County, Ohio. Bedrock is from the Mississippian Geologic Period. The image was made by Sherry L. Weisgarber in 1988.
An Ohio Geological Survey Teachers Workshop tour inside the facilities of Bowerston Shale Company operations at Hanover, Licking County, Ohio. Bedrock is from the Mississippian Geologic Period. The image was made by Sherry L. Weisgarber in 1988.
Buckeye Furnace in Milton Township, Jackson County, Ohio. Buckeye Furnace was built in 1851 and ceased operation in 1894. It is one of more than 40 iron furnaces that operated in southeastern Ohio from about 1836 to 1916. During this time extensive oak-hickory forests were clear-cut to provide charcoal for the furnaces, where ore from nearby mines was smelted. For more than a half century some of the best iron in the world flowed from these furnaces. The discovery of richer, more abundant ores in Michigan and Minnesota brought Ohio�s iron industry to an end. Buckeye Furnace was restored in the early 1970s and is part of the Ohio Historical Society's museum site system in Ohio. The image was taken during a teachers...
The Williamstown Bridge at Marietta, Washington County, Ohio. The image shows both the bridge and the roadway paver bricks along the Ohio River. The image was taken by Michael D. Williams in the summer of 1999.
A core section sample of Sharon sandstone/conglomerate drilled by the Ohio Geological Survey's Mobile B-61 Pacemaker core rig in Raccoon Township, Gallia County, Ohio, for a Clarion (No. 4a) coal study. The image was taken in by Michael C. Hansen in 1982 based on information from Ohio Geological Survey Core Record File No. 2541.
A view of the Ohio Geological Survey's core repository at 4140 Fisher Road, Columbus Ohio 43228. The core collection was located at this warehouse, known to the staff as the Phillipi Road Warehouse, between 1984 and the dedication of the Horace R. Collins Laboratory at 3307 South Old State Road, Delaware, Ohio 43015 in 1999. The Ohio Geological Survey's Longyear Hydro-44 drill core rig is shown in this image. The image was made by Michael C. Hansen in 1987.
L.J. Hughes and Sons company operator at the site of a drill hole for coal exploration on Deep Core II project in Stock Township, Noble County, Ohio. The drill core is described in Ohio Geological Survey Core Record File No. 2405. The image was made in November 1977.
A diamond coring bit and a rotary coring bit used for the coal exploration project. L.J. Hughes and Sons company operatored the drill rig at the site of a drill hole for coal exploration on Deep Core II project in Stock Township, Noble County, Ohio. The drill core is described in Ohio Geological Survey Core Record File No. 2405. The image was made in November 1977.
Lifting a drill rig for positionig under the Detroit-Superior Bridge at the Cuyahoga River in Cleveland, Cuyahoga County, Ohio. The image is undated, but was probably taken during the 1950s.
A mastodon (Mammut americanum) tusk found at the Rupp Construction company sand and gravel pit in the southeast quarter of Section 1 in Baughman Township, Wayne County, Ohio. The specimen is stored at Orrville High School. The images were taken by Orrville High School's earth sciences teacher, Robert Shonk, in the 1970s. The location given is approximate to the excavation site.
The excavation site of a mastodon found on the farm belonging to Rolland Farrington north of Somerville in York Township, Union County, Ohio. The mastodon remains, shown in the peat bog, were determined to be from a juvenile animal. The mastodon (Mammut americanum) specimen was in good condition and one of the more complete mastodon specimens found in Ohio. The image was taken by Carl W. Albrecht on October 1, 1970. The location given is approximate to the excavation site.
map background search result map search result map COCORP in Coshocton County, Ohio, 1987 Galena Shale, Tile, and Brick Company in Delaware County, Ohio, 1975 Galena Shale, Tile, and Brick Company in Delaware County, Ohio, 1970s General Clay Products Corporation in Hocking County, Ohio, 1978 General Clay Products Corporation in Hocking County, Ohio, 1978 Logan Clay Products Company in Hocking County, Ohio, 1970 International Salt Company Mine at Cleveland, Cuyahoga County, Ohio, 1975 International Salt Company Mine at Cleveland, Cuyahoga County, Ohio, 1985 The Celotex Corporation in Ottawa County, Ohio Bowerston Shale Company Operation at Hanover, Licking County, Ohio, 1988 Bowerston Shale Company Operation at Hanover, Licking County, Ohio, 1988 Buckeye Furnace in Jackson County, Ohio, 1988 The Williamstown Bridge at Marietta, Washington County, Ohio, 1999 Mobile B-61 Pacemaker Drill Rig in Gallia County, Ohio, 1982 Ohio Geological Survey Core Repository, Columbus, Ohio, 1987 Deep Core Project in Noble County, Ohio, 1977 Deep Core Project in Noble County, Ohio, 1977 Core Drilling in Cuyahoga County, Ohio, 1950s Rupp Mastodon from Wayne County, Ohio, 1970s Farrington Mastodon Excavation in Union County, Ohio, 1970