File:Thumb Paintpots (late afternoon, 1 June 2017) 3.jpg
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| Description |
English: Mudpots, or paintpots, are rare hydrothermal features. At such sites, volcanic gases rise through “mud” - a thick slurry of hot, acidic water mixed with fine-grained clay minerals. The clay minerals formed by chemical decomposition of rhyolite lava flows by naturally-occurring sulfuric acid (H2SO4). The sulfuric acid is the result of oxidation of volcanic hydrogen sulfide gas (H2S). From boreal spring to boreal summer, the viscosity of the mudpots generally increases. Gases reaching the top surface energetically push hot blobs of mud into the air, sometimes up to 20 feet high in the best mudpot areas.
Thumb Paintpots is located in the Lower Group of Yellowstone’s West Thumb Geyser Basin. They normally consist of mildly energetic pools, mud cones, muddy hot springs, and mud geysers. For a video of Thumb Paintpots in June 2017, see: www.youtube.com/watch?v=HDbiv0JH-ug |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/35266789582/ |
| 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@N05/35266789582. It was reviewed on 12 December 2022 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 | |
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| current | 14:00, 12 December 2022 | | 4,000 × 2,812 (5.38 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/35266789582/ with UploadWizard |
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