File:Travertine speleothem cross-section (Diamond Caverns, Kentucky, USA) 12 (31881415085).jpg

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This is a cut & polished cross-section through a "cave formation", which is 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 coloration present in the banded travertine seen above is from iron oxide impurities.

Locality: Diamond Caverns, ~1.7 air-miles north-northwest of the town of Park City, northwestern Barren County, west-central Kentucky, USA
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Source Travertine speleothem cross-section (Diamond Caverns, Kentucky, USA) 12
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/31881415085. It was reviewed on 14 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

14 October 2019

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Date/TimeThumbnailDimensionsUserComment
current19:51, 14 October 2019Thumbnail for version as of 19:51, 14 October 20192,252 × 1,553 (3.81 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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