File:Chattanooga Shale (Upper Devonian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 17 (40541683280).jpg
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Original file (3,538 × 1,815 pixels, file size: 3.76 MB, MIME type: image/jpeg)
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Summary
| Description |
Shales in the Devonian of Kentucky, USA. (cross-section view) The dark area seen here is a crack surface of unweathered black shale with light-colored stringers of finely-crystalline pyrite (FeS2 - iron sulfide; "fool's gold"). The Chattanooga Shale of Kentucky and Tennessee consists of dark-colored, chippy-weathering, marine mudshales of Late Devonian age. These black shales were deposited in a moderately deep, anoxic seafloor environment. This was a widespread lithofacies during the Late Devonian's Global Anoxia Event. The Chattanooga Shale is equivalent to the Ohio Shale, the Antrim Shale, and the New Albany Shale in surrounding states. Stratigraphy: Chattanooga Shale, Upper Devonian Locality: roadcut on the northern side of Route 90, just west of Burkesville, central Cumberland County, southern Kentucky, USA (36° 47’ 51.17” North latitude, 85° 23’ 10.62” West longitude) |
| Date | |
| Source | Chattanooga Shale (Upper Devonian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 17 |
| 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@N05/40541683280 (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. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:08, 7 December 2019 | | 3,538 × 1,815 (3.76 MB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
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