File:Mudshales (Ohio Shale, Upper Devonian; Glen Echo Ravine, Columbus, Ohio, USA) 16 (36634555246).jpg

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Shales in the Devonian of Ohio, USA.

This outcrop in central Ohio consists of marine mudshales of the Late Devonian-aged Ohio Shale. The formation has been subdivided into three parts (in ascending order): Huron Shale Member, Chagrin Shale Member, and Cleveland Shale Member. The outcrop appearances of the three different members are best developed in northeastern Ohio, in the Cleveland area. The Huron and Cleveland are black shales and the Chagrin is gray shale. In central Ohio, the Chagrin Shale lithofacies occurs in a relatively thin, poorly developed interval - it is referred to as the Three Lick Bed. The Three Lick consists of interbedded gray and black shales.

These rocks were deposited in a moderately deep, anoxic seafloor environment. Black shale was widespread lithofacies during the Late Devonian. The Ohio Shale is equivalent to the Chattanooga Shale, the Antrim Shale, and the New Albany Shale in surrounding states.

Stratigraphy: Ohio Shale, Famennian Stage, upper Upper Devonian

Locality: creek cut in Glen Echo Ravine, Columbus, north-central Franklin County, Ohio, USA (~40° 01' 09.94" North latitude, ~82° 59' 58.35" West longitude)
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Source Mudshales (Ohio Shale, Upper Devonian; Glen Echo Ravine, Columbus, Ohio, USA) 16
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/36634555246 (archive). It was reviewed on 7 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

7 December 2019

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Date/TimeThumbnailDimensionsUserComment
current19:05, 7 December 2019Thumbnail for version as of 19:05, 7 December 20194,000 × 3,000 (6.09 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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