File:Vein in limestone ceiling (Main Cave, Mammoth Cave, Kentucky, USA) 2.jpg
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| Description |
English: Veins are mineral-filled fractures in rocks. Common vein-filling minerals include quartz (SiO2) and calcite (CaCO3). The example seen here is in a limestone cave ceiling in western Kentucky's Mammoth Cave, the longest cave on Earth. As of March 2024, 426 miles worth of passages have been explored and mapped.
The vein-filling mineral in this case appears to be gypsum (hydrous calcium sulfate, CaSO4·2H2O). The host rocks are in the Middle Mississippian Ste. Genevieve Limestone. Locality: southern stretches of Main Cave, Mammoth Cave, western Kentucky, USA (accessed with park permission) |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/53679525873/ |
| 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@N05/53679525873. It was reviewed on 26 April 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 21:00, 26 April 2024 | | 4,000 × 3,000 (8.83 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/53679525873/ with UploadWizard |
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