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File:Stylolites (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 14 (48541621492).jpg

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Stylolites in limestone in the Devonian of Ohio, USA. (cross section view)

The structures seen here are stylolites, pressure dissolution features that frequently has the appearance of a hospital EKG reading. These occur in many limestones, dolostones, and some marbles, especially in or near orogenic belts. The host rock here is limestone, a biogenic sedimentary rock composed of calcite (CaCO3 - calcium carbonate). Most limestones formed in ancient, warm, shallow ocean environments.

Stratigraphy: loose block derived from the Columbus Limestone, Middle Devonian

Locality: roadside barrier rock along Bookerman Road at Lafarge Kelleys Island Quarry, western Kelleys Island, western Lake Erie, far-northern Ohio, USA (41° 36' 11.01" North latitude, 82° 43' 15.94" West longitude)
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Source Stylolites (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 14
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@N05/48541621492. It was reviewed on 8 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

8 October 2019

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current02:24, 8 October 2019Thumbnail for version as of 02:24, 8 October 20194,000 × 3,000 (6.49 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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