File:Artists Paintpots (northeastern pit) (late afternoon, 6 June 2014) 12 (15045147490).jpg
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Summary
[edit]DescriptionArtists Paintpots (northeastern pit) (late afternoon, 6 June 2014) 12 (15045147490).jpg |
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 increases. Gases reaching the top surface energetically push hot blobs of mud into the air, sometimes up to 20 feet high. Artists Paintpots are one of the two best, easily accessible mudpot areas in Yellowstone Park, Wyoming. They are are located at Paintpot Hill in the Gibbon Geyser Basin. The rocks that were decomposed to form the mudpots are Paintpot Hill Dome rhyolites (205,000 to 225,000 years old, upper Middle Pleistocene). Rhyolite is a felsic, aphanitic, extrusive igneous rock - it is a common lithology at Yellowstone, where entire plateaus are composed of Pleistocene-aged rhyolite lavas. |
Date | |
Source | Artists Paintpots (northeastern pit) (late afternoon, 6 June 2014) 12 |
Author | James St. John |
Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/15045147490 (archive). 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/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:27, 14 October 2019 | 4,288 × 2,848 (4.45 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D90 |
Exposure time | 1/160 sec (0.00625) |
F-number | f/8 |
ISO speed rating | 200 |
Date and time of data generation | 16:59, 6 April 2014 |
Lens focal length | 170 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 18:12, 8 September 2014 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 16:59, 6 April 2014 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 5 APEX (f/5.66) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 255 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |
Supported Flashpix version | 1 |
Image width | 4,288 px |
Image height | 2,848 px |
Date metadata was last modified | 14:12, 8 September 2014 |