File:Massillon Sandstone (Lower Pennsylvanian; ridgetop above Mohawk Dam, Coshocton County, Ohio, USA) 6 (33925701172).jpg

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Quartzose sandstone in the Pennsylvanian of Ohio, USA.

The Pottsville Group is a Pennsylvanian-aged cyclothemic succession in eastern Ohio that contains nonmarine shales, marine shales, siltstones, sandstones, coals, marine limestones, and chert ("flint"). The lower Pottsville dates to the late Early Pennsylvanian. The upper part dates to the early Middle Pennsylvanian. The Lower-Middle Pennsylvanian boundary is apparently somewhere near the Boggs Member (?).

Shown above is a ridgetop outcrop of erosion-resistant quartzose sandstone in the lower Pottsville Group. According to Lamborn (1954), this is the Massillon Sandstone. In parts of Ohio, the unit is called the Dundee Sandstone.

Stratigraphy: Massillon Sandstone, lower Pottsville Group, upper Lower Pennsylvanian

Locality: ridgetop above Mohawk Dam's eastern abutment, northwest of the town of Nellie, western Coshocton County, eastern Ohio, USA (~vicinity of 40° 21’ 16.37” North latitude, ~82° 05’ 07.36” West longitude)

Reference cited:

Lamborn (1954) - Geology of Coshocton County. Ohio Division of Geological Survey Bulletin 53. 245 pp. 1 fold-out geologic map.
Date
Source Massillon Sandstone (Lower Pennsylvanian; ridgetop above Mohawk Dam, Coshocton County, Ohio, USA) 6
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/33925701172. It was reviewed on 24 June 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

24 June 2017

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current17:38, 24 June 2017Thumbnail for version as of 17:38, 24 June 20174,000 × 3,000 (5.87 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via Flickr2Commons

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