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A kame in Salt Creek Valley at Haynes in Hocking County, Ohio. The image was taken by Michael C. Hansen in 1973.
Kames near Adelphi, Ross County, Ohio. The image was taken by Michael C. Hansen in 1973.
A view of skunk cabbage in the swamp along the kettle margin at Lake Kelso in Burton Township, Geauga County, Ohio. The image was made by Michael C. Hansen in 1975.
A sinkhole in a field north of the area of Bellevue, Sandusky County, Ohio. The image was taken by Michael P. Angle during his field work for surficial mapping in April 1988.
The cliff face with evidence of spalling on the rockfall outcrop after rockfall in Pomeroy, Meigs County, Ohio. At 2:00 a.m. on December 2, 1971, approximately 830 cubic yards of sandstone, principally in the form of large blocks, fell from a cliff in Pomeroy. Several of these blocks bounded into the mail-sorting room and parking lot of the Pomeroy Post Office, on Second Street, destroying a corner of the building and filling the parking lot with rock. The sandstone cliff at this location is cut by joints that run parallel to the cliff face. Beneath the sandstone is a weak shale that has been eroded, thus providing little basal support for the overlying sandstone. The rockfall material is the Pomeroy sandstone of...
Earth movement with pavement cracking and roadway damage on Hillside Avenue in Cincinnati, Hamilton County, Ohio. Unit lithology in the area is interbedded shale and limestone. Bedrock is from the Ordovician Geologic Period. The image was taken on August 24, 1974.
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 photograph was taken by Michael C. Hansen in 1975.
Outcrop showing contact between the uranium-rich Huron Member of the Ohio Shale with overlying till of Wisconsinan age along the Lake Erie shoreline at Showse Park, Vermilion, Lorain County, Ohio. Pleistocene glaciers eroded large amounts of Ohio Shale and incorporated these fragments in tills. Note vertical cracks in the till. These fissures provide avenues for upward migration of radon. Unit lithology in this area is shale, siltstone, and sandstone. Bedrock is from the Devonian Geologic Period. Ohio Geological Survey employee Merrianne Hackthorn is pictured next to the outcrop for scale. The photograph was taken by David B. Buchanan probably in April 1983.
A scenic view of Rockbridge with waterfall at Rockbridge State Nature Preserve in Hocking County, Ohio. The image was taken by Michael C. Hansen in 1973. The Natural Arch and Bridge Society defines a natural arch as �a rock exposure that has a hole completely through it formed by the natural, selective removal of rock, leaving a relatively intact frame.� At 92 feet Rockbridge is Ohio's longest natural bridge. The bridge originated as a typical Hocking Hills alcove carved into the soft middle layer of Black Hand Sandstone at the head of a short box canyon cut by a small tributary of the Hocking River. Three intersecting vertical fractures in the roof of the shelter were gradually enlarged until the block they surrounded...
A landslide in the Minford silt along James A. Rhodes Appalachian Highway, Ohio State Route 32, in Pike County. The image was taken on October 1, 1970.
Categories: Physical Item; Tags: Landslides, Slides
A landslide in the Minford silt along James A. Rhodes Appalachian Highway, Ohio State Route 32, in Pike County. The image was taken on October 1, 1970.
Categories: Physical Item; Tags: Landslides, Slides
Slumps in Mississippian colluvium on the east side of United States Highway 23 north of Portsmouth, Scioto County, Ohio. The image was made by Michael C. Hansen in 1979.
Categories: Physical Item; Tags: Landslides, Slides
The COCORP truck caravan moving west to east across Coshocton County, Ohio. The Vibroseis trucks served as the source of the ground vibrations. Multiple trucks were used to increase the energy injected into the ground. Shown here is the interior of the recording truck used elsewhere to record the signals after they returned to the surface. The recording truck was also known at the �doghouse.� This is where the signals from the geophone sensors on the ground are collected and transferred to magnetic tape. It also contains equipment that signals the vibrator trucks to begin operation. Normally the doghouse is stationary while the vibrators move down the road. The doghouse has a sophisticated switching equipment that...
Outcrop of Ohio Shale along the Lake Erie shoreline at Cleveland, Cuyahoga County, Ohio. Bedrock is from the Devonian Geologic Period. Photograph was taken by Dr. Paul Potter.
A concretion in the Ohio Shale at Camp Mary Orton in Franklin County, Ohio. Bedrock is from the Devonian Geological Period. The photograph was taken by Michael C. Hansen in 1987.
Ohio Academy of Science fieldtrip in 1985 at Backbone Creek in Clermont County, Ohio. Image shows outcrop along the streambed. The rock surface has persistent iron (Fe) staining from ground-water seeps. Unit lithology in this area is interbedded limestone and shale. Bedrock is from the Ordovician Geologic Period.
National Lime & Stone Company quarry at Carey, Wyandot County, Ohio. Lockport (formerly Guelph) Dolomite is found at this location. Unit lithology in this area is dolomite and shale. Bedrock is from the Silurian Geologic Period. Michael C. Hansen took this photograph probably in the late 1970s.
National Lime & Stone Company quarry at Carey, Wyandot County, Ohio. This close-up image of Lockport (formerly Guelph) Dolomite shows reef core facies. Bedrock is from the Silurian Geologic Period. Michael C. Hansen took this photograph probably in the late 1970s.
National Lime & Stone Company quarry at Carey, Wyandot County, Ohio. Lockport (formerly Guelph) Dolomite is found at this location. Unit lithology is dolomite and shale. Bedrock is from the Silurian Geologic Period. Michael C. Hansen took this photograph probably in the late 1970s.
The American Aggregates Corporation's Cedarville Quarry site in Greene County, Ohio. This area has dolomite and shale lithologies. Bedrock is from the Silurian Geologic Period. Geologists Gregory A. Schumacher, E. Mac Swinford, Ernie R. Slucher, David A. Stith, and Dennis N. Hull of the Ohio Geological Survey are pictured with geologists Greg Klosterman and Ken Coats of American Aggregates Corporation. The photograph was taken by Douglas L. Shrake on August 20, 1991.
map background search result map search result map Ohio Acadmey of Science Fieldtrip, Clermont County, Ohio, 1985 National Lime & Stone Company Quarry, Carey, Ohio, 1978 National Lime & Stone Company Quarry, Carey, Ohio, 1978 National Lime & Stone Company Quarry, Carey, Ohio, 1978 Cedarville Quarry, Greene County, Ohio, 1991 Lake Erie Shoreline, Cuyahoga County, Ohio Concretions at Camp Mary Orton, Franklin County, Ohio, 1987 Showse Park, Lorain County, Ohio, 1983 Bedford Shale Outcrop, Galena, Delaware County, Ohio, 1975 Rockbridge State Nature Preserve, Hocking County, Ohio, 1973 Kames in Hocking County, Ohio, 1973 Kames in Ross County, Ohio, 1973 Kettles in Geauga County, Ohio, 1975 Mapping Surficial Geology in Sandusky County, Ohio, 1988 Rockfall in Meigs County, Ohio, 1971 Landslide in Pike County, Ohio, 1970 Landslide in Pike County, Ohio, 1970 Landslide in Scioto County, Ohio, 1979 COCORP in Coshocton County, Ohio, 1987