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File:Travertine flowstone & dripstone (Shenandoah Caverns, Quicksburg, Virginia, USA) 17.jpg

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English: Travertine flowstone & dripstone in a cave in Virginia, USA.

"Cave formations" in caves are technically called speleothem. Most speleothem is composed of travertine, a crystalline-textured chemical sedimentary rock composed of calcite (CaCO3). Travertine forms in most caves and at some springs by precipitation of crystals from water. Travertine speleothem occurs in a wide variety of forms. The most common variety of travertine speleothem is dripstone, which forms by the action of dripping water. The second-most common type of travertine speleothem is flowstone, which forms by precipitation of crystals from relatively thin films of flowing water. Flowstone typically has the appearance of a frozen waterfalls.

Pure travertine is white. The colors seen in most of the travertine shown above are from iron oxides.

Shenandoah Caverns is developed in structurally tilted carbonates of the Conococheague Formation (Upper Cambrian).

Locality: Shenandoah Caverns, Quicksburg, southern Shenandoah County, northern Virginia, USA
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Source https://www.flickr.com/photos/47445767@N05/27258749013/
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@N05/27258749013. It was reviewed on 22 February 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

22 February 2023

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current21:09, 22 February 2023Thumbnail for version as of 21:09, 22 February 20233,000 × 4,000 (4.94 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/27258749013/ with UploadWizard

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