File:Limestone over dolostone (St. Louis Limestone over Renfro Member of the Slade Formation, Middle Mississippian; Route 460 roadcut south of Frenchburg, Kentucky, USA) 1 (32636327638).jpg
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Limestone over dolostone in the Mississippian of Kentucky, USA. The brown-colored rocks in the upper part of the photo are part of 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. The ochre-colored rocks below are part of the Renfro Member of the Slade Formation. The Renfro is a very shallow marine/marginal marine carbonate unit dominated by dolostones. At this cut, the Renfro is relatively thin, but nearby is a 120 feet thick section of Renfro. The unit varies considerably in thickness over short areas. Stratigraphy: St. Louis Limestone over Renfro Member of the Slade Formation, 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 | Limestone over dolostone (St. Louis Limestone over Renfro Member of the Slade Formation, Middle Mississippian; Route 460 roadcut south of Frenchburg, 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@N05/32636327638 (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. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:38, 7 December 2019 | | 3,000 × 4,000 (6.44 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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