Dusty Volcano in Syria Planum
NASA/JPL-Caltech/UArizona
Dusty Volcano in Syria Planum
PSP_009527_1670  Science Theme: Volcanic Processes
This image shows an old volcano in Syria Planum, near the edge of the Tharsis volcanic rise. This is a region where extensive volcanism has occurred; in many places, the upper walls of Valles Marineris have cut through lava flows.

The basic shape of the old volcano is visible here, but the entire region has been coated by dust. This makes it difficult to learn more about the volcanic processes that have occurred at this site. However, the mantle is interesting by itself. It has probably settled out of the atmosphere, either as dust or possibly volcanic ash, since it seems to coat the entire region uniformly. (Mars has frequent, massive dust storms which could create large deposits over time.) This mantle has a regular, scalloped texture that is visible at several scales.

The texture is not well understood; it is common in volcanic terrains, but also occurs on some other rock outcrops. HiRISE scientists are studying images like this one to determine how it forms.



Written by: Colin Dundas  (24 September 2008)
 
Acquisition date
07 August 2008

Local Mars time
15:31

Latitude (centered)
-12.798°

Longitude (East)
257.537°

Spacecraft altitude
252.4 km (156.9 miles)

Original image scale range
25.3 cm/pixel (with 1 x 1 binning) so objects ~76 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
3.4°

Phase angle
60.8°

Solar incidence angle
63°, with the Sun about 27° above the horizon

Solar longitude
109.5°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  40.9°
JPEG
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JP2 EXTRAS
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map-projected  (308MB)
non-map           (471MB)

IRB color
map projected  (111MB)
non-map           (387MB)

Merged IRB
map projected  (219MB)

Merged RGB
map-projected  (210MB)

RGB color
non map           (350MB)
ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

USAGE POLICY
All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL-Caltech/UArizona

POSTSCRIPT
NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.