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File:Maury Shale (Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 1 (45899583144).jpg

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Weathered shale with phosphatic nodules in the Mississippian of Kentucky, USA.

This is an outcrop of the Maury Shale in Kentucky, a thin, condensed interval that is equivalent in part to the Henley Member of the Borden Formation in Kentucky and southern Ohio. Lithologically, the Maury is a grayish to greenish glauconitic shale with phosphatic nodules.

Condensed intervals are thin to very thin successions of sedimentary rocks representing very slow sedimentation rates. A condensed interval has a complete sedimentary record for its time interval, but is significantly thinner than correlative sections. They often have concentrations of microfossils. Condensed intervals can be associated with unconformities.

Conodont biostratigraphy has shown that the Maury Shale was deposited during the Kinderhookian and the early to middle Osagean.

Stratigraphy: Maury Shale, Kinderhookian to mid-Osagean Stages, Lower Mississippian

Locality: roadcut on the northern side of Route 90, just west of Burkesville, central Cumberland County, southern Kentucky, USA (36° 48’ 01.98” North latitude, 85° 22’ 48.93” West longitude)
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Source Maury Shale (Lower Mississippian; Burkesville West Rt. 90 roadcut, 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@N05/45899583144 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

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current02:46, 6 December 2019Thumbnail for version as of 02:46, 6 December 20194,000 × 3,000 (5.57 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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