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File:St. Louis Limestone (Middle Mississippian; Route 460 roadcut south of Frenchburg, Kentucky, USA) 3 (46672347301).jpg

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Summary

Description

Limestone in the Mississippian of Kentucky, USA.

This is the St. Louis Limestone, as exposed in a roadcut near Frenchburg, Kentucky. A fossil coral zone occurs in this unit - they were ripped up and tossed by ancient storms. The corals have been silicified. Eroded-out corals are common in area creeks. Paleokarst occurs in places in the St. Louis Limestone at this site. When the cut was fresh, a small paleocave here had speleothem. Speleothem can be collected in area creeks, too. Some barite masses occur at this locality, a few meters above the base of the St. Louis. The top of the St. Louis has a paleosol profile.

Stratigraphy: St. Louis Limestone, Meramecian, Middle Mississippian

Locality: roadcut along the western side of Route 460, south-southeast of the town of Frenchburg, central Menifee County, eastern Kentucky, USA (37° 56’ 31.07” North latitude, 83° 37’ 12.31” West longitude)
Date
Source St. Louis Limestone (Middle Mississippian; Route 460 roadcut south of Frenchburg, Kentucky, USA) 3
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@N05/46672347301 (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.

7 December 2019

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12 March 2018

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current18:41, 7 December 2019Thumbnail for version as of 18:41, 7 December 20193,000 × 4,000 (7.67 MB)Ser Amantio di NicolaoTransferred from Flickr via #flickr2commons

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