File:Possible Cinder Cone on the Southern Flank of Pavonis Mons.jpg
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Summary
[edit]DescriptionPossible Cinder Cone on the Southern Flank of Pavonis Mons.jpg |
English: This image is centred on a small cone on the side of one of Mars' giant shield volcanoes. The cone shows some layers of hard rock but most of it is made of relatively soft material. This appears to be an example of a "cinder" cone composed of pieces of lava thrown into the air during a small volcanic eruption.
Typically, such eruptions produce fountains of molten lava. Most of the lava would have cooled in this fountain, producing a loose pile of lava rocks. However, it appears that some pulses of the eruption allowed the lava to land without cooling much. These pieces were hot enough to weld together to make the hard layers we see today. The cone is 700 x 1100 meters in size, similar to many cinder cones on Earth. In other parts of the image, we see channels carved by lava. It is sometimes difficult to tell if a channel was formed by flowing water or lava; in this case, it is possible to see that lava flows feed out of these channels. |
Date | |
Source | HiRISE |
Author | NASA/JPL/University of Arizona |
Local Mars time: 3:43 PM. Latitude (centred): -1.1 °. Longitude (East): 246.6 °. Range to target site: 254.5 km. Original image scale range: 50.9 cm/pixel (with 2 x 2 binning) so objects ~153 cm across are resolved. Map projected scale: 50 cm/pixel and north is up. Map projection: EQUIRECTANGULAR. Emission angle: 2.5 °. Phase angle: 53.3 °. Solar incidence angle: 56 °, with the Sun about 34 ° above the horizon. Solar longitude: 187.3 °, Northern Autumn.
Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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current | 17:29, 16 November 2010 | 2,560 × 1,920 (5.46 MB) | Originalwana (talk | contribs) | {{Information |Description={{en|1=This image is centred on a small cone on the side of one of Mars' giant shield volcanoes. The cone shows some layers of hard rock but most of it is made of relatively soft material. This appears to be an example of a "cin |
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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.
Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS4 Macintosh |
File change date and time | 13:01, 5 October 2010 |
Color space | sRGB |
Image width | 2,560 px |
Image height | 1,920 px |
Date and time of digitizing | 08:51, 15 September 2009 |
Date metadata was last modified | 06:01, 5 October 2010 |
Unique ID of original document | uuid:183BB7C606F9DD11BA66D1AD63D425C6 |