Filters: Tags: Quartz (X)
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An outcrop of the Pottsville Group-Sharon sandstone/conglomerate with quartz pebbles at mile marker 19.6 on Interstate 76, south of the Interstate 76 interchange with Interstate 77 on the west side of Akron, Summit County, Ohio. This area has shale, siltstone, sandstone and conglomerate lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1981.
Photomicrograph of sedimentary quartz grain in sample SM1-36 taken from breccia in core DGS 3274 at a depth of 1,436 feet (438 meters). The quartz grain has planar deformation features (PDFs), which appear as dark lines within the grain. This quartz grain exhibits two sets of planar deformation features. These features form under considerable pressure. The quartz grain was recovered from a rock core in the center of the disturbance. The quartz grain is less than one-fourth of a millimeter in diameter. Richard W. Carlton discovered the quartz grains in the core, which conclusively proved the structure was affected by an asteroid or comet impact. The grain-mounted thin section was photographed in transmitted light...
Categories: Physical Item;
Tags: Breccia,
Chert,
Devonian Geologic Period,
Dolomite,
Impact Craters,
An outcrop of the Pottsville Group-Sharon sandstone/conglomerate with quartz pebbles at mile marker 19.6 on Interstate 76, south of the Interstate 76 interchange with Interstate 77 on the west side of Akron, Summit County, Ohio. This area has shale, siltstone, sandstone and conglomerate lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1981.
An outcrop of the Pottsville Group-Sharon sandstone/conglomerate with quartz pebbles at the quarry owned by R. W. Sidley, Inc, Hambden Township, Geauga County, Ohio. The area of the quarry has shale, siltstone, sandstone and conglomerate lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1977.
An outcrop of the Pottsville Group-Sharon sandstone/conglomerate with quartz pebbles at mile marker 19.6 on Interstate 76, south of the Interstate 76 interchange with Interstate 77 on the west side of Akron, Summit County, Ohio. This area has shale, siltstone, sandstone and conglomerate lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1981.
Pottsville Group-Sharon sandstone/conglomerate quartz pebbles along the north side of State Route 124 in the northeast 1/4 of Section 10, Scioto Township, Jackson County, Ohio. This area has shale, siltstone, sandstone and conglomerate lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1982.
Categories: Physical Item;
Tags: Conglomerate,
Groups (Stratigraphy),
Outcrops (Geology)--Ohio,
Pennsylvanian Geologic Period,
Quartz,
Pottsville Group-Sharon sandstone/conglomerate quartz pebbles at Thompson Ledges Township Park, Thompson Township, Geauga County, Ohio. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1975.
Categories: Physical Item;
Tags: Conglomerate,
Groups (Stratigraphy),
Outcrops (Geology)--Ohio,
Pennsylvanian Geologic Period,
Quartz,
An outcrop of the Pottsville Group-Sharon sandstone/conglomerate with quartz pebbles at mile marker 19.6 on Interstate 76, south of the Interstate 76 interchange with Interstate 77 on the west side of Akron, Summit County, Ohio. This area has shale, siltstone, sandstone and conglomerate lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1981.
Quartz pebbles in the Black Hand Sandstone of the Cuyahoga Formation that forms Old Man's Cave at Hocking Hills State Park, Hocking County, Ohio. Old Man's Cave is a large rock shelter in the northwest valley wall of Old Man's Creek. It is formed in the weakly cemented crossbedded middle zone of the Black Hand Sandstone. The rock shelter cave is about 200 feet long, 50 feet high, and 75 feet deep. The resistant uppermost zone of the Black Hand sandstone forms the roof of the cave. Bedrock is from the Mississippian Geologic Period. The image is from 1969.
Categories: Physical Item;
Tags: Caves,
Conglomerate,
Gorges,
Groups (Stratigraphy),
Mississippian Geologic Period,
An outcrop of the Pottsville Group-Sharon sandstone/conglomerate with quartz pebbles at mile marker 19.6 on Interstate 76, south of the Interstate 76 interchange with Interstate 77 on the west side of Akron, Summit County, Ohio. This area has shale, siltstone, sandstone and conglomerate lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken by Michael C. Hansen in 1981.
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