File:Weathered, undulose-bedded black shales (New Albany Shale, Upper Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 1.jpg

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English: Weathered, undulose-bedded black shales in the Devonian of Kentucky, USA.

This is an outcrop of the New Albany Shale, a Devonian-aged formation in Kentucky, Indiana, Illinois, and eastern Missouri. The unit is dominated by dark-colored 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 New Albany Shale is equivalent to the Ohio Shale, the Antrim Shale, and the Chattanooga Shale in surrounding states.

The New Albany Shale's member terminology varies from region to region. In southern Indiana and adjacent areas of Kentucky, the New Albany consists of (from the base upward): Blocher Member, Selmier Member, Morgan Trail Member, Camp Run Member, and Clegg Creek Member.

This cut consists of the Blocher, Morgan Trail, Camp Run, and Clegg Creek Members - the Selmier is missing here. The undulose bedding is not structural folding - shales have draped over paleotopography of the underlying North Vernon Limestone's top surface.

Stratigraphy: New Albany Shale, uppermost Middle Devonian to Upper Devonian

Locality: roadcut along the western side of the south-bound entrance ramp to Interstate 65 at the Route 245-Interstate 65 interchange, north-northeast of Belmont & south of Sherpherdsville, south-central Bullitt County, north-central Kentucky, USA (37° 55' 24.45" North latitude, 85° 41' 18.33" West longitude)
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Source https://www.flickr.com/photos/47445767@N05/52864349029/
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@N05/52864349029. It was reviewed on 2 May 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

2 May 2023

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current16:54, 2 May 2023Thumbnail for version as of 16:54, 2 May 20231,819 × 927 (2.49 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52864349029/ with UploadWizard

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