File:New Providence Shale over New Albany Shale (Mississippian over Devonian; MacDonald Knob Outcrop, Bullitt County, Kentucky, USA) 1 (45178087004).jpg
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Summary[edit]
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| Description |
Shales in the Paleozoic of Kentucky, USA. The gray slopes in the upper part of the picture is the New Providence Shale, a member of the Borden Formation, a deltaic succession of Early Mississippian age. Here, the New Providence is mostly gray clayshales. Phosphatic nodules are concentrated at the base in a glauconitic shale. This weathered, iron oxide-stained, black shale outcrop in the lower part of the picture is the New Albany Shale of Kentucky and Indiana. The unit 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 New Albany Shale is equivalent to the Ohio Shale, the Antrim Shale, and the Chattanooga Shale in surrounding states. Stratigraphy: New Providence Shale Member of the Borden Formation (Lower Mississippian) over New Albany Shale (Upper Devonian) Locality: MacDonald Knob Outcrop - roadcut along side road, west of the interstate, between Shepherdsville & the southern outskirts of Louisville, Bullitt County, Kentucky, USA (38° 00’ 44.51” North latitude, 85° 41’ 59.51” West longitude) |
| Date | |
| Source | New Providence Shale over New Albany Shale (Mississippian over Devonian; MacDonald Knob Outcrop, Bullitt County, Kentucky, USA) 1 |
| 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@N05/45178087004 (archive). 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. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:58, 8 October 2019 | | 4,000 × 3,000 (8.26 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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