File:Vent Geyser & Turban Geyser erupting (late afternoon, 18 May 2015) 4.jpg
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[edit]DescriptionVent Geyser & Turban Geyser erupting (late afternoon, 18 May 2015) 4.jpg |
English: Geysers are hot springs that episodically erupt columns of water. They occur in few places on Earth. The highest concentration of geysers anywhere is at the Yellowstone Hotspot Volcano (northwestern Wyoming, USA).
Turban Geyser is a frequently erupting feature in the Grand Group of Yellowstone’s Upper Geyser Basin. It has an elongated shape (~7.5 meters long and ~3.5 meters wide) and has an irregularly scalloped margin. It is located immediately north of Grand Geyser - the tallest predictable geyser on Earth. Turban is perched above Grand such that Turban eruptions produce much overflow and runoff that drains into Grand’s vent. Turban’s raised border is composed of geyserite, a chemical sedimentary rock made of opal (= SiO2·nH2O - hydrous silica). The geyserite forms by precipitation from hot to very hot, silica-rich groundwater that emerges at springs and geysers. The silica is ultimately derived from subsurface leaching of late Cenozoic-aged rhyolite lavas, which are common at Yellowstone. The border of Turban Geyser has irregularly anastomosing ridges of geyserite and well-developed scallops at pool level (see this rare vintage photo: www.flickr.com/photos/psa104/16130976471). Turban eruptions consist of low to intermediate-sized splashing and normally occur every 20 minutes or so, with durations of about 5 minutes. Longer eruptions of Turban Geyser are associated with eruptions of adjacent Grand Geyser. Turban and nearby Vent Geyser typically erupt together during and after Grand eruptions. Post-Grand activity by Turban Geyser can continue for a couple hours. |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/18252943175/ |
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@N05/18252943175. It was reviewed on 27 February 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
27 February 2023
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:21, 27 February 2023 | 4,000 × 2,178 (2.28 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/18252943175/ with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/1,000 sec (0.001) |
F-number | f/4.9 |
ISO speed rating | 80 |
Date and time of data generation | 17:00, 18 May 2015 |
Lens focal length | 18.6 mm |
Image title | |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 23:56, 29 May 2015 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 17:00, 18 May 2015 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 9.96875 |
APEX aperture | 4.59375 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 4.59375 APEX (f/4.91) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Landscape |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 19:56, 29 May 2015 |
Unique ID of original document | B39D700496AD571308F014B35002CDB4 |