File:Basalt (Upper Pleistocene, ~73 ka; Vulcan's Throne Cinder Cone, Uinkaret Volcanic Field, Arizona, USA) (46547522024).jpg
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Summary edit
DescriptionBasalt (Upper Pleistocene, ~73 ka; Vulcan's Throne Cinder Cone, Uinkaret Volcanic Field, Arizona, USA) (46547522024).jpg |
Basalt from the Pleistocene of Arizona, USA. (~9.7 centimeters across at its widest) This is a weathered, slightly vesicular basalt from a cinder cone volcano in Arizona. Cinder cones are relatively small, steep-sided cones of loose igneous debris. They have few eruptions and a relatively large summit crater. Cinder cones are principally composed of scoria and vesicular basalt. The cinder cone volcano from which this specimen derives is known as Vulcan's Throne, which is about 73,000 years old. Lava flows from the volcano flowed into the Grand Canyon itself and blocked the Colorado River, forming a long lake. Water levels eventually overtopped the lava dam, creating a large waterfall. Erosion destroyed the lava dam and the lake drained. This sequence of events occurred at least 13 times in the history of the Grand Canyon. Locality: vintage specimen, Vulcan's Throne Cinder Cone, North Rim of the Grand Canyon, Uinkaret Volcanic Field, northeastern Arizona, USA |
Date | |
Source | Basalt (Upper Pleistocene, ~73 ka; Vulcan's Throne Cinder Cone, Uinkaret Volcanic Field, Arizona, USA) |
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@N05/46547522024 (archive). It was reviewed on 10 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
10 October 2019
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:24, 10 October 2019 | 3,315 × 2,160 (4.71 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/9 |
ISO speed rating | 80 |
Date and time of data generation | 12:13, 3 March 2019 |
Lens focal length | 7.23 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 | 14:44, 3 March 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 12:13, 3 March 2019 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.34375 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 3.34375 APEX (f/3.19) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
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 | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 09:44, 3 March 2019 |
Unique ID of original document | 816290BD531835D6615DF50F3259FD85 |
IIM version | 32,767 |